XYZZ (where element M is an element selected from Cs, Rb, K, Tl, In, etc., 0.001 ≤ Y ≤ 1.0, and 2.2 ≤ Z ≤ 3.0), the infrared shielding fiber structure being characterized in that the particle size of the microparticles is 1 nm to 800 nm and the microparticle content per unit area of the structure is 0.10 g/m2to 4.5 g/m2, and, because the average reflectance of the structure becomes 65% or lower at wavelengths of 800 nm to 1300 nm, it is possible to maintain the infrared-covert-photography prevention function for an extended period of time.
D03D 15/20 - Woven fabrics characterised by the material, structure or properties of the fibres, filaments, yarns, threads or other warp or weft elements used characterised by the material of the fibres or filaments constituting the yarns or threads
D04B 1/14 - Other fabrics or articles characterised primarily by the use of particular thread materials
D04B 21/00 - Warp knitting processes for the production of fabrics or articles not dependent on the use of particular machines; Fabrics or articles defined by such processes
D06M 11/48 - Oxides or hydroxides of chromium, molybdenum or tungsten; Chromates; Dichromates; Molybdates; Tungstates
2.
METHOD FOR REMOVING ORGANIC IMPURITIES FROM IMPURITY-CONTAINING ORGANIC SOLVENT
Provided is a method for removing organic impurities from an impurity-containing organic solvent. After the viscosity of an impurity-containing organic solvent is adjusted in a viscosity adjustment step (S21): a sulfuric acid cleaning step (S1) for adding sulfuric acid to the impurity-containing organic solvent and obtaining a post-sulfuric-acid-cleaning liquid and a post-sulfuric-acid-cleaning organic, an alkali cleaning step (S2) for adding a neutralizer to the post-sulfuric-acid-cleaning organic, adjusting the pH, and performing separation into a post-cleaning heavy liquid having a neutralized precipitate, an aqueous phase, and an organic phase and a post-cleaning light liquid containing an organic phase, and a precipitate dissolution step (S3) for adding sulfuric acid to the post-cleaning heavy liquid and obtaining a post-precipitate-dissolution organic and a precipitate dissolution solution, are performed; and the post-precipitate-dissolution organic is returned to the alkali cleaning step (S2). Metal-based impurities are removed in the sulfuric acid cleaning step (S1), the post-sulfuric-acid-cleaning organic containing organic impurities are subject to the alkali cleaning step (S2), the obtained post-cleaning heavy liquid is separated in the precipitate dissolution step (S3) into a post-precipitate-dissolution organic and a precipitate dissolution solution, the post-precipitate-dissolution organic is returned to the alkali cleaning step (S2), and an organic solvent from which organic impurities have been removed is obtained.
LITHIUM-ION SECONDARY BATTERY POSITIVE ELECTRODE MATERIAL AND METHOD FOR MANUFACTURING SAME, LITHIUM-ION SECONDARY BATTERY POSITIVE ELECTRODE, AND LITHIUM-ION SECONDARY BATTERY
Provided is a lithium-ion secondary battery positive electrode material comprising aggregated particles in which a plurality of primary particles of a positive electrode active material containing lithium iron phosphate and coated with a carbonaceous coating film are aggregated. The positive electrode active material has a prescribed composition containing lithium iron phosphate, and the change rate in a grid area of a b-axis–c-axis surface between before charging of the positive electrode material and after fully charged (that is, [(grid area before charging - grid area after fully charged)/(grid area before charging)] × 100) is 1.10% to 1.33%. When used as a positive electrode for the lithium-ion secondary battery, the positive electrode material exhibits excellent cycle characteristics and has high input/output characteristics.
H01M 4/58 - Selection of substances as active materials, active masses, active liquids of polyanionic structures, e.g. phosphates, silicates or borates
C01B 25/45 - Phosphates containing plural metal, or metal and ammonium
H01M 4/136 - Electrodes based on inorganic compounds other than oxides or hydroxides, e.g. sulfides, selenides, tellurides, halogenides or LiCoFy
H01M 4/36 - Selection of substances as active materials, active masses, active liquids
Provided is a method which makes it possible to suppress wear of a treatment furnace, and to safely and efficiently collect valuable metals from raw materials including waste lithium-ion batteries and the like. This method is for producing a valuable metal from a raw material including the valuable metal and comprises: a preparation step for preparing a raw material including at least lithium (Li), aluminum (Al), and a valuable metal; a reduction melting step for subjecting the raw material to a reduction melting treatment to obtain a reduced product including a slag and an alloy containing the valuable metal; and a slag separation step for separating the slag from the reduced product to collect the alloy. The preparation step and/or the reduction melting step include adding, to the raw material, a flux containing calcium (Ca), and also adding thereto magnesia (MgO).
The present invention provides: an electrically conductive paste which uses an electrically conductive powder and a ceramic powder that are refined for the size reduction and thickness reduction of a multilayer ceramic electronic component, and which is capable of forming an internal electrode layer that exhibits excellent adhesive properties, while having a smooth dry film; an electronic component; and a multilayer ceramic capacitor. The electrically conductive paste contains an electrically conductive powder, a ceramic powder, a dispersant, a binder resin and an organic solvent. The binder resin contains cellulose, a polyvinyl acetal, and a polymer compound which is obtained by bonding a cellulose compound and a polyvinyl acetal compound by means of sulfur atoms. The molar ratio of sulfur atoms contained in the polymer compound relative to the sum total of the cellulose and the cellulose compound is 0.3-1.7. The dispersant is an anionic polymer compound.
C08G 81/02 - Macromolecular compounds obtained by interreacting polymers in the absence of monomers, e.g. block polymers at least one of the polymers being obtained by reactions involving only carbon-to-carbon unsaturated bonds
C08L 29/14 - Homopolymers or copolymers of acetals or ketals obtained by polymerisation of unsaturated acetals or ketals or by after-treatment of polymers of unsaturated alcohols
H01B 1/22 - Conductive material dispersed in non-conductive organic material the conductive material comprising metals or alloys
POSITIVE ELECTRODE MATERIAL FOR LITHIUM ION SECONDARY BATTERY, PRODUCTION METHOD THEREFOR, POSITIVE ELECTRODE FOR LITHIUM ION SECONDARY BATTERY, AND LITHIUM ION SECONDARY BATTERY
Provided is a positive electrode material for a lithium ion secondary battery, the positive electrode material comprising aggregated particles obtained by aggregating a plurality of primary particles of a positive electrode active material including lithium iron phosphate coated with a carbonaceous film, wherein: the positive electrode active material has a predetermined composition including lithium iron phosphate; and calcium phosphate particles and/or aluminum phosphate particles are present on the surfaces of the primary particles of the positive electrode active material, particle boundaries between the primary particles, or both the surfaces and the particle boundaries. The positive electrode material has high input and output characteristics when used as a positive electrode of a lithium ion secondary battery.
H01M 4/58 - Selection of substances as active materials, active masses, active liquids of polyanionic structures, e.g. phosphates, silicates or borates
C01B 25/45 - Phosphates containing plural metal, or metal and ammonium
H01M 4/136 - Electrodes based on inorganic compounds other than oxides or hydroxides, e.g. sulfides, selenides, tellurides, halogenides or LiCoFy
H01M 4/36 - Selection of substances as active materials, active masses, active liquids
Provided is a method capable of suppressing generation of dust during handling of a mixed powder of positive electrode active material and negative electrode active material, which is the raw material to be processed in the method for recovering valuable metals, and reducing recovery loss of valuable metals due to carry over that occurs when processing the mixed powder. The present invention is a method for recovering valuable metals, wherein the method includes a preparation step S1 that prepares a raw material containing waste lithium-ion batteries, and a granulated material is prepared from a mixed powder in the preparation step S1 by implementing a preliminary kneading step S13 that adds water to a mixed powder containing the positive electrode active materials and the negative electrode active materials that constitute the waste lithium-ion batteries and preliminarily kneads the mixture and a granulation step S14 that further kneads and granulates the preliminarily kneaded material. The amount of water added in the preliminary kneading step S13 is preferably adjusted to 0.14-0.16 by weight ratio relative to the mixed powder. Also, a twin-shaft paddle granulator is preferably used in the granulation step S14, with the circumferential speed of the paddle tips set at 50-90 m/min.
To provide a method of recovering, at low cost, valuable metals from waste lithium-ion batteries by a dry smelting process. The present invention is a method of recovering valuable metals from waste lithium-ion batteries, the method comprising: an oxidation roasting step S3 in which oxidation roasting is implemented on a raw material containing waste lithium-ion batteries; and a reduction step S4 in which the obtained oxidation-roasted matter is reduced in the presence of carbon. In the oxidation roasting step S3, an oxidant of 1.5 times or more the chemical equivalent of carbon within the raw material to be treated is introduced, and the oxidation roasting is carried out at a processing temperature selected in a range of 600°C to 900°C, so that the carbon grade of the obtained oxidation-roasted matter will be less than 1.0 mass%.
Provided is a method for cost-effectively recovering valuable metals from waste lithium-ion batteries through a pyrometallurgical process. The present invention pertains to a method for recovering valuable metals from waste lithium-ion batteries, the method comprising: an oxidation roasting step S3 in which raw materials including waste lithium-ion batteries are subjected to an oxidation roasting treatment; and a reduction step S4 in which the obtained oxidation roasted product is reduced in the presence of carbon. In the oxidation roasting step S3, calcium carbonate is charged into a furnace together with the raw materials including waste lithium-ion batteries to control the treatment temperature of the oxidation roasting treatment.
To provide a method whereby a valuable metal can be efficiently recovered from a waste lithium-ion battery, the present invention is a method for recovering a valuable metal from a waste lithium-ion battery, and comprises an oxidation roasting step S3 for performing oxidation roasting treatment of a raw material that includes a waste lithium-ion battery, and a reduction step S4 for reducing a resultant oxidation roasted product in the presence of carbon. The present invention is characterized in that dust in an exhaust gas that is generated in the oxidation roasting step S3 is subjected to heat treatment at no less than 600°C but less than 1000°C to perform recovery, and at least a portion of the recovered heat-treated dust is added to material to be treated in the reduction step S4. The temperature of heat treatment of the dust is preferably no less than 900°C but less than 1000°C.
Provided is a treatment method for obtaining a solution, that contains nickel and/or cobalt, from a waste battery. The invention comprises executing, in the stated order: 1) a pre-treatment step for detoxifying a waste battery and crushing same to obtain a crushed product; 2) an alkaline leaching step for adding an alkali to the crushed product to obtain an alkaline leachate including Li/Al/F/P as well as an alkaline leaching residue containing Ni and/or Co; 3) a reduction-leaching step for bringing the alkaline leaching residue into contact with an acid and a reducing agent to obtain a reduced leachate in which the Ni and/or Co have been reduced and leached into an acid solution; 4) a sulfurization step for adding a sulfurizing agent to the reduced leachate to obtain a sulfurized solution from which Cu has been removed by sulfide; 5) an oxidation-neutralization step for adding an oxidizing agent and a neutralizing agent to the sulfurized solution to remove the Fe/P/Al by precipitation and obtain an oxidized-neutralized solution; and 6) an ion exchange step for bringing the oxidized-neutralized solution into contact with an ion exchange resin to separate out F by adsorption onto the ion exchange resin and obtain an ion-exchanged solution containing Ni and/or Co.
The purpose of the present invention is to provide a lithium carbonate powder which, due to the high feedability, can improve the efficiency of producing powdery materials. The present invention relates to a lithium carbonate powder that has a D90, which is a 90% volume-cumulative particle diameter determined from a laser diffraction/scattering particle-size distribution, of 9 μm or larger and that has a specific surface area exceeding 1.0 m2/g.
H01M 4/505 - Selection of substances as active materials, active masses, active liquids of inorganic oxides or hydroxides of manganese of mixed oxides or hydroxides containing manganese for inserting or intercalating light metals, e.g. LiMn2O4 or LiMn2OxFy
H01M 4/525 - Selection of substances as active materials, active masses, active liquids of inorganic oxides or hydroxides of nickel, cobalt or iron of mixed oxides or hydroxides containing iron, cobalt or nickel for inserting or intercalating light metals, e.g. LiNiO2, LiCoO2 or LiCoOxFy
C08L 33/06 - Homopolymers or copolymers of esters of esters containing only carbon, hydrogen, and oxygen, the oxygen atom being present only as part of the carboxyl radical
C09C 3/10 - Treatment with macromolecular organic compounds
C09D 17/00 - Pigment pastes, e.g. for mixing in paints
C09K 23/52 - Natural or synthetic resins or their salts
H01B 1/22 - Conductive material dispersed in non-conductive organic material the conductive material comprising metals or alloys
14.
NEGATIVE ELECTRODE ACTIVE MATERIAL FOR LITHIUM-ION SECONDARY BATTERIES, METHOD FOR PRODUCING NEGATIVE ELECTRODE ACTIVE MATERIAL FOR LITHIUM-ION SECONDARY BATTERIES, AND LITHIUM-ION SECONDARY BATTERY
H01M 4/485 - Selection of substances as active materials, active masses, active liquids of inorganic oxides or hydroxides of mixed oxides or hydroxides for inserting or intercalating light metals, e.g. LiTi2O4 or LiTi2OxFy
Ruthenium oxide powder according to the present invention has a rutile type crystal structure, wherein, when the a-axis lattice constant and the c-axis lattice constant measured by X-ray diffraction are La and Lc, respectively, Lc/La is 0.6913 or more, and the crystallite diameter is 10-80 nm.
H01C 7/00 - Non-adjustable resistors formed as one or more layers or coatings; Non-adjustable resistors made from powdered conducting material or powdered semi-conducting material with or without insulating material
C01G 55/00 - Compounds of ruthenium, rhodium, palladium, osmium, iridium, or platinum
C03C 8/16 - Glass frit mixtures having non-frit additions, e.g. opacifiers, colorants, mill additions with vehicle or suspending agents, e.g. slip
C03C 14/00 - Glass compositions containing a non-glass component, e.g. compositions containing fibres, filaments, whiskers, platelets, or the like, dispersed in a glass matrix
The purpose of the present invention is to reduce the amount of neutralizing agent used in a hydrometallurgical process of nickel oxide ore without lowering the recovery of nickel. The present invention provides a hydrometallurgical method for nickel oxide ore, the hydrometallurgical method comprising a leaching step S4, a preliminarily neutralization step S5, a solid-liquid separation step S6 for a leachate slurry after the preliminarily neutralization step S5, a neutralization step S7 for achieving a final neutralized solution that contains nickel by separating a neutralized sediment that contains impurity elements by adjusting the pH of the leachate, a sulfurization step S8, and a final neutralization step S9. In the preliminarily neutralization step S5, a slurry for a preliminarily neutralization treatment is used as a pH adjusting agent, the slurry having a magnesium content in the solid content of 3% by weight or more and a nickel content in the solid content of 0.7% by weight or more.
KYUSHU UNIVERSITY, NATIONAL UNIVERSITY CORPORATION (Japan)
Inventor
Tanaka, Yoshiyuki
Hirajima, Tsuyoshi
Aoki, Yuji
Miki, Hajime
Suyantara, Gde Pandhe Wisnu
Abstract
This flotation recovery rate prediction device, for predicting the recovery rate of a metal subject to sorting in flotation sorting in which the metal subject to sorting is separated from an ore in which a plurality of ores containing a plurality of minerals are mixed, comprises: a receiving unit for receiving a desired recovery rate of the metal subject to sorting; an acquisition unit for acquiring information representing the relationship between soluble metal ratio and mineral content, and information representing the recovery rate of the metal subject to sorting and the mineral content of each of the ores; a calculation unit for calculating, on the basis of the information representing the relationship between soluble metal ratio and mineral content and the information representing the recovery rate of the metal subject to sorting and the mineral content of each of the ores, the mixing ratio of the ores to achieve the desired recovery rate of the metal subject to sorting; and an output unit for outputting information indicating the calculated mixing ratio of the ores.
22 is reduced and the nickel recovery rate is high. The present invention is a method for smelting nickel-containing oxide ore, comprising: a hydrogen reduction step S3 in which a reduction treatment is carried out while supplying hydrogen, as a reducing agent, to a raw material including nickel-containing oxide ore; a melting step S4 for carrying out a melting treatment on the reduced product obtained by the reduction treatment; and a recovery step S5 for separating slag from the melted product obtained by the melting treatment and recovering metal including nickel. Also, the method preferably further includes a pelletizing step in which the raw material including nickel-containing oxide ore is pelletized. The pelletized raw material is subjected to the reduction treatment in the hydrogen reduction step.
The present invention provides: a conductive paste which uses a conductive powder and a ceramic powder that are refined for the size reduction and thickness reduction of a multilayer ceramic electronic component, and which is capable of forming an internal electrode layer that exhibits excellent adhesion, while having a smooth dry film; an electronic component; and a multilayer ceramic capacitor. The present invention provides a conductive paste which contains a conductive powder, a ceramic powder, a dispersant, a binder resin and an organic solvent, wherein: the binder resin contains a cellulose, a polyvinyl acetal, and a polymer compound which is obtained by bonding a cellulose compound and a polyvinyl acetal compound by means of sulfur atoms; and the molar ratio of the sulfur atoms contained in the polymer compound to the sum of the cellulose and the cellulose compound is 0.3 to 1.7.
C08L 29/00 - Compositions of homopolymers or copolymers of compounds having one or more unsaturated aliphatic radicals, each having only one carbon-to-carbon double bond, and at least one being terminated by an alcohol, ether, aldehydo, ketonic, acetal, or ketal ; Compositions of hydrolysed polymers of esters of unsaturated alcohols with saturated carboxylic acids; Compositions of derivatives of such polymers
Provided is a conductive paste for forming an internal electrode to be used in a layered ceramic electronic component, said conductive paste being capable of improving adhesion by suppressing a 'sheet attack' and reducing the hardness of the dried film. A conductive paste which contains a conductive metal powder, a ceramic powder, a binder resin, an additive and an organic solvent, wherein: the organic solvent contains (A) one or more types of compound selected from dihydroterpinyl acetate, isobornyl acetate, isobornyl propionate, isobornyl butyrate and isobornyl isobutyrate, and (B) one or more types of compound selected from ethylene glycol monobutyl ether acetate and dipropylene glycol methyl ether acetate; and the additive contains a phosphate polyester in an amount which is more than 0 mass% and no more than 2.0 mass% relative to the total mass of the conductive paste.
A granular body for lithium adsorption, which is durable and with which it is possible to efficiently utilize the ability of a lithium adsorbent, and a manufacturing method therefor are provided. This granular body for lithium adsorption contains a precursor of the lithium adsorbent and a hydrous polymer containing the precursor therein. Also, the hydrous polymer is able to form a gelatinous granular body. Due to this configuration, when the hydrous polymer has a predetermined moisture content, since the granular body is gelatinous, partial loss thereof no longer occurs and the durability of the granular body is improved. In addition, because the hydrous polymer allows a liquid such as seawater to pass, the entire lithium adsorbent can come into contact with this liquid and the ability of the lithium adsorbent can be efficiently utilized.
B01J 13/00 - Colloid chemistry, e.g. the production of colloidal materials or their solutions, not otherwise provided for; Making microcapsules or microballoons
To provide a slag that allows the slag melting point to be effectively controlled to a predetermined temperature or below while keeping down the amount of flux added and that effectively concentrates Li by keeping down the amount of slag in Li-containing slag obtained by melting a raw material such as waste lithium ion batteries that contains Li and Al. The present invention is an Li-containing slag obtained by melting a raw material containing waste lithium ion batteries that contain lithium (Li) and aluminum (Al), characterized by having relationships of Al/Li < 5 and silicon (Si)/Li < 0.7 by mass ratio and by containing Al in a proportion of 20 mass% or less, Li in a proportion of 3-20 mass%, and Si in a proportion of 0-7 mass%.
The present invention provides Li-containing slag which is obtained by melting a starting material such as waste lithium ion batteries that contain Li and Al, and which has a slag melting point that is effectively controlled to a specific temperature or less, while suppressing the addition amount of a flux, wherein Li is effectively concentrated by suppressing the amount of slag. The present invention provides Li-containing slag which is obtained by melting a starting material that contains waste lithium ion batteries which contain lithium (Li) and aluminum (Al), and which is characterized in that: relational expressions Al/Li < 5 and (silicon (Si))/Li < 0.7 are satisfied in terms of the mass ratio; and 30% by mass or less of Al, 6% by mass or more of Mn, 3% by mass to 20% by mass of Li and 0% by mass to 7% by mass of Si are contained therein.
C22B 7/00 - Working-up raw materials other than ores, e.g. scrap, to produce non-ferrous metals or compounds thereof
H01M 10/54 - Reclaiming serviceable parts of waste accumulators
24.
POSITIVE ELECTRODE ACTIVE MATERIAL FOR LITHIUM ION SECONDARY BATTERY, AND METHOD FOR MANUFACTURING POSITIVE ELECTRODE ACTIVE MATERIAL FOR LITHIUM ION SECONDARY BATTERY
The purpose of the present invention is to provide a positive electrode active material having improved charge/discharge cycle characteristics in the positive electrode active material of a lithium ion secondary battery. The present invention provides a positive electrode active material for a lithium ion secondary battery that has lithium nickel composite oxide particles and a coating layer. The lithium nickel composite oxide particles have a crystal structure belonging to space group R–3m, and contain at least Li, Ni, Mn and elemental M, the substance ratio for each of the elements Li:Ni:Mn:M being a:(1–x–y):x:y (where 0.95≤a≤1.10, 0
H01M 4/525 - Selection of substances as active materials, active masses, active liquids of inorganic oxides or hydroxides of nickel, cobalt or iron of mixed oxides or hydroxides containing iron, cobalt or nickel for inserting or intercalating light metals, e.g. LiNiO2, LiCoO2 or LiCoOxFy
H01M 4/36 - Selection of substances as active materials, active masses, active liquids
H01M 4/505 - Selection of substances as active materials, active masses, active liquids of inorganic oxides or hydroxides of manganese of mixed oxides or hydroxides containing manganese for inserting or intercalating light metals, e.g. LiMn2O4 or LiMn2OxFy
25.
POSITIVE ELECTRODE ACTIVE MATERIAL FOR LITHIUM-ION SECONDARY BATTERY AND METHOD FOR PRODUCING SAME
The purpose of the present invention is to provide a positive electrode active material for a lithium-ion secondary battery having a higher cycle capacity retention rate. The positive electrode active material for a lithium-ion secondary battery has a lithium nickel composite oxide particle and a coating layer covering the surface of the particle. The lithium nickel composite oxide particle has a crystal structure belonging to space group R-3m, and contains at least Li, Ni, Mn, and element M, wherein the ratio Li:Ni:Mn:M:Nb=a:(1-x-y):x:y:z (0.95≤a≤1.10, 0
H01M 4/525 - Selection of substances as active materials, active masses, active liquids of inorganic oxides or hydroxides of nickel, cobalt or iron of mixed oxides or hydroxides containing iron, cobalt or nickel for inserting or intercalating light metals, e.g. LiNiO2, LiCoO2 or LiCoOxFy
H01M 4/36 - Selection of substances as active materials, active masses, active liquids
H01M 4/505 - Selection of substances as active materials, active masses, active liquids of inorganic oxides or hydroxides of manganese of mixed oxides or hydroxides containing manganese for inserting or intercalating light metals, e.g. LiMn2O4 or LiMn2OxFy
26.
POSITIVE ELECTRODE ACTIVE MATERIAL FOR ALL-SOLID-STATE LITHIUM ION SECONDARY BATTERIES AND METHOD FOR PRODUCING SAME
The purpose of the present invention is to provide a positive electrode active material for all-solid-state batteries, the positive electrode active material having improved charge and discharge cycle characteristics. The present invention provides a positive electrode active material for all-solid-state lithium ion secondary batteries, the positive electrode active material having lithium nickel composite oxide particles and a coating layer. The lithium nickel composite oxide particles have a crystal structure belonging to the space group R-3m and contain Li, Ni, Mn and an element M, with the amount of substance ratio among the elements being expressed by Li:Ni:Mn:M = a:(1 - x - y):x:y (0.95 ≤ a ≤ 1.10, 0 < x ≤ 0.5, 0 < y ≤ 0.5, 0 < x + y ≤ 0.7). With respect to the lithium nickel composite oxide particles, the Li occupancy is 92% to 98.5%; D50 is 8 µm or less; the crystallite diameter is 70 nm to 140 nm; and the amount of eluted lithium ions is 0.05% by mass to 0.50% by mass. The coating layer is formed of a composite oxide which contains Li and at least one element that is selected from the group consisting of Al, Si, Ti, V, Ga, Ge, Zr, Nb, Mo, Ta and W.
H01M 4/525 - Selection of substances as active materials, active masses, active liquids of inorganic oxides or hydroxides of nickel, cobalt or iron of mixed oxides or hydroxides containing iron, cobalt or nickel for inserting or intercalating light metals, e.g. LiNiO2, LiCoO2 or LiCoOxFy
H01M 4/36 - Selection of substances as active materials, active masses, active liquids
H01M 4/505 - Selection of substances as active materials, active masses, active liquids of inorganic oxides or hydroxides of manganese of mixed oxides or hydroxides containing manganese for inserting or intercalating light metals, e.g. LiMn2O4 or LiMn2OxFy
The purpose of the present invention is to provide a positive electrode active material that exhibits a higher battery capacity in use as a positive electrode active material in an all-solid-state battery. The positive electrode active material for an all-solid-state lithium-ion secondary battery comprises lithium nickel composite oxide particles and a coating layer that coats the surface of the particles. The lithium nickel composite oxide particles have a crystal structure belonging to a space group R-3m, and contain at least Li, Ni, Mn, and an element M, wherein a substance amount ratio for the individual elements is given by Li : Ni : Mn : M : Nb = a : (1-x-y-z) : x : y : z (0.95 ≦ a ≦ 1.10, 0 < x ≦ 0.5, 0 < y ≦ 0.5, 0 < z < 0.05, 0 < x + y + z ≦ 0.7). The Li site occupancy rate is 92-98.5%, D50 is 8 µm or less, and the amount of eluted lithium ions is 0.20-1.00 mass% in relation to the total amount of the lithium nickel composite oxide particles. The coating layer is a composite oxide that contains Li and at least one element selected from the group consisting of Al, Si, Ti, V, Ga, Ge, Zr, Nb, Mo, Ta, and W.
H01M 4/525 - Selection of substances as active materials, active masses, active liquids of inorganic oxides or hydroxides of nickel, cobalt or iron of mixed oxides or hydroxides containing iron, cobalt or nickel for inserting or intercalating light metals, e.g. LiNiO2, LiCoO2 or LiCoOxFy
H01M 4/36 - Selection of substances as active materials, active masses, active liquids
H01M 4/505 - Selection of substances as active materials, active masses, active liquids of inorganic oxides or hydroxides of manganese of mixed oxides or hydroxides containing manganese for inserting or intercalating light metals, e.g. LiMn2O4 or LiMn2OxFy
28.
ELECTROCONDUCTIVE PASTE, ELECTRONIC COMPONENT, AND LAMINATED CERAMIC CAPACITOR
Provided is an electroconductive paste making it possible to further improve adhesion to a substrate. The electroconductive paste contains an electroconductive powder, an additive, a binder resin, and an organic solvent. The electroconductive paste contains a compound including a structural moiety indicated by formula (1) as the additive. (Herein, R122-) substituted with an oxygen (-O-); and R222-) substituted with an oxygen (-O-).)
C09D 129/14 - Homopolymers or copolymers of acetals or ketals obtained by polymerisation of unsaturated acetals or ketals or by after-treatment of polymers of unsaturated alcohols
H01B 1/22 - Conductive material dispersed in non-conductive organic material the conductive material comprising metals or alloys
H05K 1/09 - Use of materials for the metallic pattern
H05K 1/16 - Printed circuits incorporating printed electric components, e.g. printed resistor, capacitor, inductor
29.
CONDUCTIVE PASTE, ELECTRONIC COMPONENT, AND MULTILAYER CERAMIC CAPACITOR
Provided is a conductive paste with which adhesion to a base material can be further enhanced. This conductive paste contains a conductive powder, an additive, a binder resin, and an organic solvent, wherein the conductive paste contains, as an additive, a rosin derivative that includes a hydroxyl group or an amine group.
C09D 129/14 - Homopolymers or copolymers of acetals or ketals obtained by polymerisation of unsaturated acetals or ketals or by after-treatment of polymers of unsaturated alcohols
H01B 1/22 - Conductive material dispersed in non-conductive organic material the conductive material comprising metals or alloys
H05K 1/09 - Use of materials for the metallic pattern
H05K 1/16 - Printed circuits incorporating printed electric components, e.g. printed resistor, capacitor, inductor
30.
CONDUCTIVE PASTE, ELECTRONIC COMPONENT, AND LAMINATED CERAMIC CAPACITOR
Provided is a conductive paste which can further improve adhesion to a substrate. This conductive paste comprises a conductive powder, a binder resin, an additive, and an organic solvent, wherein the glass transition point of a dried body, which is obtained by mixing a binder resin, an additive, and an organic solvent in the same proportion as in the conductive paste and then drying the mixture, is 30°C to 55°C.
C09D 129/14 - Homopolymers or copolymers of acetals or ketals obtained by polymerisation of unsaturated acetals or ketals or by after-treatment of polymers of unsaturated alcohols
H01B 1/22 - Conductive material dispersed in non-conductive organic material the conductive material comprising metals or alloys
H05K 1/09 - Use of materials for the metallic pattern
H05K 1/16 - Printed circuits incorporating printed electric components, e.g. printed resistor, capacitor, inductor
31.
CONDUCTIVE PASTE, ELECTRONIC COMPONENT, AND MULTILAYER CERAMIC CAPACITOR
Provided is a conductive paste of which adhesion with a base material is further improved. The conductive paste comprises a conductive powder, a binder resin, an additive, and an organic solvent, the additive comprising a compound having a structure indicated by structural formula (1) or structural formula (2). (wherein R1, R2, and R322-) included in the aliphatic hydrocarbon group may be substituted with oxygen (-O-)).
C09D 129/14 - Homopolymers or copolymers of acetals or ketals obtained by polymerisation of unsaturated acetals or ketals or by after-treatment of polymers of unsaturated alcohols
H01B 1/22 - Conductive material dispersed in non-conductive organic material the conductive material comprising metals or alloys
H05K 1/09 - Use of materials for the metallic pattern
H05K 1/16 - Printed circuits incorporating printed electric components, e.g. printed resistor, capacitor, inductor
xyzz (where the M element is one or more selected from alkali metals, alkaline earth metals, rare earth elements, Mg, Zr, Cr, Mn, Fe, Ru, Co, Rh, Ir, Ni, Pd, Pt, Cu, Ag, Au, Zn, Cd, Al, Ga, In, Tl, Si, Ge, Sn, Pb, Sb, B, F, P, S, Se, Br, Te, Ti, Nb, V, Mo, Ta, re, Be, Hf, Os, Bi, and I, 0.20≤x/y≤0.37, and 2.2≤z/y≤3.3); the crystal system is hexagonal; and when the composite tungsten oxide particles are observed from the (010) plane, the occupancy rate of the length of the side formed by a plane parallel to the c axis, among the sides surrounding the (010) plane, is 60% or greater.
POSITIVE ELECTRODE ACTIVE MATERIAL FOR LITHIUM ION SECONDARY BATTERY, AND METHOD FOR MANUFACTURING POSITIVE ELECTRODE ACTIVE MATERIAL FOR LITHIUM ION SECONDARY BATTERY
This positive electrode active material for a lithium ion secondary battery comprises: a lithium metal composite oxide particle; and at least one additive particle selected from among an aluminum oxide particle, a titanium oxide particle, a magnesium oxide particle, a silicon oxide particle, and a zirconium oxide particle, wherein the positive electrode active material has a specific surface area of 0.25 m2/g to 4.0 m2/g.
H01M 4/525 - Selection of substances as active materials, active masses, active liquids of inorganic oxides or hydroxides of nickel, cobalt or iron of mixed oxides or hydroxides containing iron, cobalt or nickel for inserting or intercalating light metals, e.g. LiNiO2, LiCoO2 or LiCoOxFy
H01M 4/36 - Selection of substances as active materials, active masses, active liquids
H01M 4/505 - Selection of substances as active materials, active masses, active liquids of inorganic oxides or hydroxides of manganese of mixed oxides or hydroxides containing manganese for inserting or intercalating light metals, e.g. LiMn2O4 or LiMn2OxFy
Provided is a method by which it is possible to safely and efficiently collect valuable metals from raw material including waste lithium-ion batteries or the like. The present invention is a method for producing, from raw materials containing valuable metals including Cu, Ni, and Co, said valuable metals. The method includes: a preparation step for preparing raw material including Li, Al, and valuable metals; a reduction melting step for subjecting the raw material to a reduction melting treatment using a melting furnace in which is provided a cooling means for cooling the furnace wall from the outside, to obtain a reduced material comprising slag and an alloy containing valuable materials; and a slag separation step for separating the slag from the reduced material to collect the alloy. A flux containing Ca is added to the raw material in one or both of the preparation step and the reduction melting step. In the reduction melting step, while the furnace wall of the melt furnace is cooled by the cooling means, the thickness of the slag layer is adjusted so that the interface temperature between the alloy layer and the slag layer becomes greater than the surface temperature of refractories on the furnace wall in the melt furnace.
Provided is copper powder, which has an average particle size of 250 nm or less and the surface of which is coated with organic matter, wherein the powder satisfies all of conditions (1)-(4) below, is provided with an organic coating film for preventing formation of oxide coating film, which may inhibit sintering, and is excellent in low temperature sinterability. (1) When the organic matter present on the surface of the copper powder is detected by GC/MS analysis, the predetermined organic matter described in the description is detected. (2) When the organic matter present on the surface of the copper powder is detected by LC/MS analysis, the predetermined organic matter described in the description is detected. (3) In the measurement of the heat shrinkage rate of the copper powder green compact, the temperature to give a heat shrinkage rate of 1% is 230°C or less. (4) In the measurement of the heat shrinkage rate of the copper powder green compact, the temperature difference between the temperature to give a heat shrinkage rate of 3% under an inert atmosphere and the temperature to give a heat shrinkage rate of 3% under a reducing atmosphere is less than 10°C.
B22F 9/24 - Making metallic powder or suspensions thereof; Apparatus or devices specially adapted therefor using chemical processes with reduction of metal compounds starting from liquid metal compounds, e.g. solutions
Provided is a method by which it is possible to safely and efficiently collect valuable metals from raw material including waste lithium-ion batteries or the like. The present invention is a method for producing valuable metals from raw material containing valuable metals including Cu, Ni and Co. The method includes at least: a preparation step for preparing raw material containing Li, Al, and valuable metals; a reduction melting step for subjecting the raw material to reduction melting treatment using a melting furnace provided with a cooling means for cooling the furnace walls from the outside to obtain a reduced product comprising a valuable metals-containing alloy and slag; and a slag separation step for separating the slag from the reduced product to collect the alloy. One or both of the preparation step and the reduction melting step include adding Ca-containing flux to the raw material. In the reduction melting step, while the furnace walls of the melting furnace are cooled with the cooling means, a solid slag layer having a Ca/Al value smaller than the Ca/Al value of the slag or a solid slag layer containing 15 mass% or more Al and 3 mass% or more Li is formed on the inside surface of the melting furnace.
The present invention provides near-infrared absorbing particles each containing an intergrowth tungsten bronze crystal wherein: the amount-of-substance ratio of cesium (Cs) to tungsten (W) contained therein (Cs/W) is not less than 0.01 but less than 0.20; the amount-of-substance ratio of oxygen (O) to tungsten (W) contained therein (O/W) is not less than 2.6 but less than 2.99; and tungsten oxide and hexagonal tungsten bronze are mingled in the form of bands.
33 absorption edges are noted as peak A, peak B, and peak C from the lowest absorption energy, the absorption energy difference between the peak tops of peak A and peak C is 12.9 eV or more.
H01M 4/525 - Selection of substances as active materials, active masses, active liquids of inorganic oxides or hydroxides of nickel, cobalt or iron of mixed oxides or hydroxides containing iron, cobalt or nickel for inserting or intercalating light metals, e.g. LiNiO2, LiCoO2 or LiCoOxFy
H01M 4/131 - Electrodes based on mixed oxides or hydroxides, or on mixtures of oxides or hydroxides, e.g. LiCoOx
H01M 4/36 - Selection of substances as active materials, active masses, active liquids
H01M 4/505 - Selection of substances as active materials, active masses, active liquids of inorganic oxides or hydroxides of manganese of mixed oxides or hydroxides containing manganese for inserting or intercalating light metals, e.g. LiMn2O4 or LiMn2OxFy
H01M 4/62 - Selection of inactive substances as ingredients for active masses, e.g. binders, fillers
Provided is a method for producing lithium hydroxide by which it is possible to obtain a high-purity lithium hydroxide by reducing impurities to a predetermined level prior to an electrodialysis conversion step. The lithium hydroxide production method includes steps (1)-(5). (1) Bicarbonation step: a step for blowing carbon dioxide into a slurry in which water and a crude lithium hydroxide are mixed. (2) Decarboxylation step: a step for heating a lithium hydrogen carbonate solution. (3) Acid solution dissolution step: a step for dissolving purified lithium carbonate into an acid solution. (4) Impurities removal step: a step for removing a portion of metal ions from a first lithium-containing solution. (5) Conversion step: a step for converting a lithium salt contained in a second lithium-containing solution into lithium hydroxide by electrodialysis. In this production method, metals other than lithium can be reliably removed and as a result, the lithium hydroxide with higher degree of purity can be obtained.
KYUSHU UNIVERSITY, NATIONAL UNIVERSITY CORPORATION (Japan)
SUMITOMO METAL MINING CO., LTD. (Japan)
Inventor
Hirajima Tsuyoshi
Miki Hajime
Suyantara Gde Pandhe Wisnu
Sasaki Keiko
Tanaka Yoshiyuki
Takida Eri
Abstract
Provided is an ore dressing method that can obtain a low-arsenic-grade concentrate from a high-arsenic-grade starting material. The ore dressing method has: a repulping step for obtaining a mineral slurry by adding water to a starting material that contains an arsenic-free sulfide mineral, i.e., a sulfide mineral that does not contain arsenic, and an arsenic-containing sulfide mineral, i.e., a copper sulfide mineral that contains arsenic; a pH adjustment step for adjusting the pH of the liquid phase of the mineral slurry to at least 10; a conditioning step for adding an oxidizing agent and an alkali metal xanthate to the mineral slurry; and a flotation step for carrying out flotation using the mineral slurry to effect separation of the starting material into: a floating ore that has a higher grade of arsenic-free sulfide mineral than the starting material, and a sedimented ore that has a higher grade of arsenic-containing sulfide mineral than the starting material. The starting material contains 4.4-5.8 weight parts of arsenic per 100 weight parts of copper.
Provided is a method for manufacturing granulated bodies for lithium adsorption that have high adsorption capabilities, are more durable, and easily maintain shape. This method for manufacturing granulated bodies for lithium adsorption includes: a kneading step for kneading together a powder of a precursor of a lithium adsorption agent, an organic binder, and a curing agent for promoting curing of the organic binder to obtain a kneaded article; a granulation step for molding the kneaded article to obtain granulated bodies; and a firing step for firing the granulated bodies at 90-120°C inclusive to obtain granulated bodies for lithium adsorption. In this state, it is possible to obtain granulated bodies for lithium adsorption that have high adsorption capabilities, are durable, and easily maintain shape.
The present invention provides a method for efficiently obtaining a solution that contains nickel and/or cobalt from lithium ion battery waste or the like, which is an alloy that contains nickel and/or cobalt and copper. The present invention is a treatment method for an alloy, the method being used for the purpose of obtaining a solution that contains nickel and/or cobalt from an alloy that contains nickel and/or cobalt and copper. This treatment method for an alloy comprises a leaching step in which the alloy is subjected to a leaching treatment by adding an acid solution to the alloy in the coexistence of a sulfurizing agent, thereby obtaining a leachate and a leaching residue; and in the leaching step, the leaching treatment is carried out while maintaining the copper concentration in the reaction solution within the range of 0.5 g/L to 15 g/L by adding a divalent copper ion source thereto. Moreover, in the leaching step, the leaching treatment is carried out while maintaining the redox potential of the reaction solution at 50 mV or more, using a silver/silver chloride electrode as a reference electrode.
NATIONAL UNIVERSITY CORPORATION CHIBA UNIVERSITY (Japan)
Inventor
Naito, Motoyuki
Sri Sumantyo, Josaphat Tetuko
Takahashi, Ayaka
Abstract
This method for measuring the state of a substance comprises: an irradiation step for irradiating a substance in a closed space with electromagnetic waves; a reception step for receiving the electromagnetic waves; and a data processing step for performing data processing of the electromagnetic waves received in the reception step. In the irradiation step, a chirped pulse wave is used as the electromagnetic wave.
G01N 22/00 - Investigating or analysing materials by the use of microwaves or radio waves, i.e. electromagnetic waves with a wavelength of one millimetre or more
Provided are a method for producing a lithium-containing solution and a method for producing lithium hydroxide that make it possible to raise the purity of a lithium compound finally obtained. This method for producing a lithium-containing solution includes an ion exchange step for obtaining a lithium-containing solution containing less of a prescribed metal element than a pre-treatment lithium-containing solution by using an ion-exchange resin. In the ion exchange step, the pre-treatment lithium-containing solution is passed through a column equipped with the ion-exchange resin to remove the prescribed metal element. A predetermined amount of the pre-treatment lithium-containing solution from when the pre-treatment lithium-containing solution begins to flow through the column is not included in the lithium-containing solution. This makes it possible to remove the metal element to be removed that is included in the solution passing through in the initial stage while suppressing the amount of pre-treatment lithium-containing solution wasted and to reduce the metal content to be removed in the lithium-containing solution.
B01J 45/00 - Ion-exchange in which a complex or a chelate is formed; Use of material as complex or chelate forming ion-exchangers; Treatment of material for improving the complex or chelate forming ion-exchange properties
C02F 1/42 - Treatment of water, waste water, or sewage by ion-exchange
H01M 4/525 - Selection of substances as active materials, active masses, active liquids of inorganic oxides or hydroxides of nickel, cobalt or iron of mixed oxides or hydroxides containing iron, cobalt or nickel for inserting or intercalating light metals, e.g. LiNiO2, LiCoO2 or LiCoOxFy
Provided is an infrared absorbing fiber comprising a fiber and organic/inorganic hybrid infrared absorbing particles. The organic/inorganic hybrid infrared absorbing particles include: infrared absorbing particles; and a coating resin coating at least a part of the surface of the infrared absorbing particles. The content ratio of the infrared absorbing particles is 15-55% by mass. The organic/inorganic hybrid infrared absorbing particles are provided to at least one section selected from the inside and the surface of the fibers.
Provided is a simulation device for analyzing the behavior of a granular material that includes a plurality of particles, said simulation device having an adhesive force calculation unit that calculates the adhesive force of the particles, and a particle behavior analysis unit that uses the adhesive force calculated by the adhesive force calculation unit to analyze the behavior of the plurality of particles, wherein the adhesive force calculation unit calculates the adhesive force on the basis of the contact radius of contact surfaces between the particles and a contact object that comes into contact with the particles.
Provided is a method for efficiently obtaining a solution containing nickel and/or cobalt from alloys containing nickel and/or cobalt and copper, such as waste lithium-ion batteries. The present invention pertains to an alloy treatment method for obtaining a solution containing nickel and/or cobalt from alloys containing nickel and/or cobalt and copper, the method comprising: a leaching step S1 in which an acid solution is added to the alloys in the presence of a sulfurizing agent to perform a leaching treatment and obtain a leachate and a leaching residue; and a cementation step S2 in which a reducing agent and a sulfurizing agent are added to the resulting leachate to perform a copper removal treatment for sulfurizing at least copper contained in the leachate and obtain a post-copper removal solution and a copper removal residue, wherein the copper removal residue obtained through the copper removal treatment in the cementation step S2 is repeatedly subjected to the leaching step S1 and subjected to a leaching treatment together with the alloys.
Provided is a method for producing lithium hydroxide that enables an increase in the purity of the obtained lithium hydroxide. This method for producing lithium hydroxide comprises a lithium adsorption step, a lithium elution step, an impurity removal step, and a conversion step. The impurity removal step comprises: a carbonation step (3A) : a step for obtaining a crude lithium carbonate by the addition of a carbonate source to a second lithium-containing solution; a bicarbonation step (3B) : a step for obtaining a lithium bicarbonate solution by blowing carbon dioxide into a slurry containing the crude lithium carbonate; a decarbonation step (3C) : a step for obtaining purified lithium carbonate by heating the lithium bicarbonate solution; and an acid solution dissolution step (3D) : a step for obtaining a third lithium-containing solution by dissolving the purified lithium carbonate in an acid solution. According to this embodiment, metals other than lithium can be reliably removed and as a consequence the purity of the resulting lithium hydroxide can be increased.
A method is provided which enables selectively leaching nickel and/or cobalt from an alloy that contains copper and nickel and/or cobalt in a waste lithium ion battery. This alloy processing method involves obtaining a solution that contains nickel and/or cobalt from an alloy that contains copper and nickel and/or cobalt, wherein the alloy processing method involves a leaching step for adding an acid solution to the alloy in a state in which a sulfurizing agent is also present, and obtaining a leachate and a leaching residue by performing leaching processing while controlling the redox potential (the reference electrode being a silver / silver chloride electrode) to at least 100mV and less than 250mV. In the leaching processing in the leaching step, an operation is performed that temporarily decreases the redox potential to less than or equal to -100mV.
The present invention provides a method for producing a valuable metal at a low cost. A method according to the present invention comprises at least: a preparation step in which a starting material that contains Li, Mn, Al and a valuable metal is prepared; a reduction melting step in which the starting material is subjected to a reduction melting process so as to obtain a reduced product that contains slag and an alloy containing the valuable metal; and a slag separation step in which the slag is separated from the reduced product, thereby recovering the alloy. In one or both of the preparation step and the reduction melting step, a flux that contains calcium (Ca) is added; the molar ratio of Li to Al (Li/Al ratio) in the slag that is obtained by the reduction melting process is set to 0.25 or more, while the molar ratio of Ca to Al (Ca/Al ratio) in the slag is set to 0.30 or more; the Mn amount in the slag is set to 5.0% by mass or more; and the oxygen partial pressure in a melt that is obtained by melting the starting material is controlled to be 10-14to 10-11 in the reduction melting process.
Provided is a method for effectively obtaining a solution containing nickel and/or cobalt from an alloy that contains copper as well as nickel and/or cobalt, in a waste lithium-ion battery or the like. The present invention is an alloy processing method for obtaining a solution containing nickel and/or cobalt from an alloy that contains copper as well as nickel and/or cobalt, said method including a leaching step for carrying out an acid solution leaching treatment on an alloy-containing slurry in the presence of a sulfurising agent to obtain a leachate and a leaching residue. In the leaching step, the leaching treatment is carried out with the initial concentration of the alloy-containing slurry adjusted to between 100 g/L and 250 g/L. Moreover, in the leaching step, the leaching treatment is preferably carried out while controlling the redox potential (using a silver/silver chloride electrode as a reference electrode) to 200 mV or less. Furthermore, in the leaching step, the leaching treatment is preferably carried out in the presence of the sulfurising agent in an amount in the range of 1.05 to 1.25 equivalent weight (S-mol/Cu-mol) in relation to the amount of copper contained in the alloy.
The present invention provides a conductive paste for gravure printing, the conductive paste being able to be suppressed in separation between a conductive powder and a ceramic powder, thereby having good viscosity stability over time. The present invention provides a conductive paste for gravure printing, the conductive paste containing a conductive powder, a ceramic powder, a dispersant, a binder resin and an organic solvent, wherein: the dispersant contains a carboxylic acid-based polymer dispersant that has a weight average molecular weight of 5,000 or more; and the carboxylic acid-based polymer dispersant is contained in an amount of not less than 0.01% by mass but less than 2.0% by mass relative to the total amount of the conductive paste.
Provided is a method for recovering valuable metals that makes it possible to efficiently recover valuable metals at a high recovery rate. The present invention is a method for recovering the valuable metal from a raw material that contains the valuable metal. This method comprises: a preparation step for preparing a raw material; a melting step for introducing the raw material into a melting furnace and heating and melting the raw material to yield an alloy and a slag; and a slag separation step for separating the slag and recovering a valuable metal-containing alloy. The redox degree is adjusted in the melting step by introducing, as a reducing agent, scrap of a wound body, the wound body being an electrode assembly in which a positive electrode and a negative electrode are wound insulated from each other by a separator and carbon is used in the negative electrode.
Provided is a technology for executing stable processing by extending the furnace refractory life in an electric furnace for heating and melting a raw material containing a valuable metal. The present invention provides an electric furnace 1 for heating and melting a raw material 2 containing a valuable metal, the electric furnace 1 including: a furnace body 11; and a plurality of electrodes 12 that are provided so as to hang down into the interior of the furnace body 11 from a top section thereof. The raw material 2 is heated and melted in the furnace body 11 by energizing the electrodes 12 and a molten material consisting of a slag 3 and a metal 4 is generated. The electric furnace 1 is configured so that the overall heat transfer coefficient of a side wall 11B of the furnace body 11 is lower than the overall heat transfer coefficient of a side wall 11A of the furnace body 11, the side wall 11B coming into contact with a layer of the metal 4 formed in a bottom layer, the side wall 11A coming into contact with a layer of the slag 3 formed in a top layer, and said layers being formed in the molten material due to gravity separation.
xyzz (wherein the element M represents one or more elements that are selected from among H, He, an alkali metal, an alkaline earth metal, a rare earth element, Mg, Zr, Cr, Mn, Fe, Ru, Co, Rh, Ir, Ni, Pd, Pt, Cu, Ag, Au, Zn, Cd, Al, Ga, In, Tl, Si, Ge, Sn, Pb, Sb, B, F, P, S, Se, Br, Te, Ti, Nb, V, Mo, Ta, Re, Be, Hf, Os, Bi and I; W represents tungsten; O represents oxygen; 0.001 ≤ x/y ≤ 1; and 3.0 < z/y).
C09D 11/101 - Inks specially adapted for printing processes involving curing by wave energy or particle radiation, e.g. with UV-curing following the printing
57.
ANTIFUNGAL EMULSION COATING, ANTIFUNGAL FINE PARTICLE DISPERSION, AND ARTICLE PROVIDED WITH ANTIFUNGAL FINE PARTICLE DISPERSION
Provided are an antifungal emulsion coating and an antifungal fine particle dispersion that exhibit an excellent long-term antifungal effect even when exposed to moist hot environments. This antifungal emulsion coating comprises a resin emulsion and composite tungsten oxide fine particles (surface-treated composite tungsten oxide fine particles) having a surface coated with a coating film that contains at least one selection from hydrolysis products of metal chelate compounds, polymers of hydrolysis products of metal chelate compounds, hydrolysis products of metal cyclic oligomer compounds, and polymers of hydrolysis products of metal cyclic oligomer compounds. The surface-treated composite tungsten oxide fine particles maintain excellent photothermal conversion characteristics even when exposed to moist hot environments, and due to this the antifungal emulsion coating comprising a resin emulsion and the surface-treated composite tungsten oxide fine particles has the ability to exhibit excellent antifungal effects on a long-term basis.
NATIONAL UNIVERSITY CORPORATION YAMAGATA UNIVERSITY (Japan)
Inventor
Igari, Atsushi
Chonan, Takeshi
Kawaguchi, Seigou
Kudo, Takumi
Abstract
Provided are organic-inorganic hybrid infrared ray-absorbing particles which comprise a resin capsule and infrared ray-absorbing particles placed in the resin capsule, in which the content ratio of the infrared ray-absorbing particles is 15 to 55% by mass inclusive.
KYUSHU UNIVERSITY, NATIONAL UNIVERSITY CORPORATION (Japan)
SUMITOMO METAL MINING CO., LTD. (Japan)
Inventor
Sasaki Keiko
Konadu Kojo Twum
Mendoza Florez Diedgo Moizes
Sakai Ryotaro
Suyama Ikumi
Hirajima Tsuyoshi
Aoki Yuji
Murase Nana
Abstract
Provided are: a gold ore pretreatment method capable of facilitating recovery of gold even when a gold ore contains a sulfide or a carbonaceous component; and a gold recovery method exhibiting a high gold recovery rate. The pretreatment method includes a biological oxidation step in which a gold ore containing a sulfide and iron-oxidizing bacteria are brought into contact with each other and held for a prescribed time. The gold recovery method includes: a pretreatment step for applying pretreatment to a gold ore by means of a pretreatment method; a leaching step for leaching gold from the gold ore to obtain a leachate; an adsorption step for allowing activated carbon to adsorb gold in the leachate; and an elution step for eluting gold from the activated carbon to obtain a gold solution. Because the sulfide enclosing gold particles is oxidatively decomposed by the action of the iron-oxidizing bacteria, the gold particles are liberated, whereby gold recovery is facilitated. As a result, the gold recovery rate can be increased.
C22B 1/00 - Preliminary treatment of ores or scrap
C22B 3/04 - Extraction of metal compounds from ores or concentrates by wet processes by leaching
C22B 3/18 - Extraction of metal compounds from ores or concentrates by wet processes with the aid of microorganisms or enzymes, e.g. bacteria or algae
C22B 3/24 - Treatment or purification of solutions, e.g. obtained by leaching by physical processes, e.g. by filtration, by magnetic means by adsorption on solid substances, e.g. by extraction with solid resins
C09D 11/037 - Printing inks characterised by features other than the chemical nature of the binder characterised by the pigment
C09D 11/101 - Inks specially adapted for printing processes involving curing by wave energy or particle radiation, e.g. with UV-curing following the printing
The present invention provides a method that is capable of selectively obtaining nickel and/or cobalt from an alloy, which contains copper as well as nickel and/or cobalt, in a waste lithium ion battery or the like. A method for processing an alloy according to the present invention comprises: a leaching step S1 in which an alloy that contains copper as well as nickel and/or cobalt is subjected to a leaching treatment by means of an acid solution in the coexistence of a sulfurizing agent, thereby obtaining a leachate and a leaching residue; and a reduction step S2 in which a reducing agent is added to the thus-obtained leachate so as to reduce the leachate, thereby obtaining a post-reduction solution and a reduction residue. This method for processing an alloy is characterized in that the reduction is carried out in the reduction step S2, while controlling the addition amount of the reducing agent so that the redox potential of the leachate is 0 mV or less as determined where a silver/silver chloride electrode is the reference electrode.
Provided is a method for obtaining a solution having a high concentration of nickel and/or cobalt from an alloy that contains copper as well as nickel and/or cobalt, in a waste lithium-ion battery or the like. A method for treating an alloy according to the present invention comprises: a leaching step S1 for subjecting an alloy that contains copper as well as nickel and/or cobalt to a leaching treatment by using an acid solution in the presence of a sulfiding agent to obtain a leachate and a leaching residue; and a reduction step S2 for adding a reducing agent to a part of the obtained leachate and performing a reduction treatment to obtain a post-reduction solution and a reduction residue, wherein in the leaching step S1, the leachate that has not been provided in the reduction treatment in the reduction step S2, is repeatedly used as part or all of the acid solution added in the leaching treatment.
Provided is a method for safely and efficiently recovering a valuable metal from a material including waste lithium ion batteries or the like. The present invention is for producing a valuable metal from a material including the valuable metal, the method comprising: a preparation step for preparing a material including at least Li, Al, and a valuable metal; a reduction and melting step for carrying out a reduction and melting process on the material to obtain a reduced product including a slag and an alloy containing a valuable metal; and a slag separation step for separating the slag from the reduced product to recover the alloy. In the preparation step and/or the reduction and melting step, a flux containing Ca is added to the material. In the reduction and melting step, the reduction and melting process is carried out such that the mass ratio of aluminum oxide / (aluminum oxide + calcium oxide + lithium oxide), in the generated slag, is set to 0.5-0.65, and the slag heating temperature is set to 1400-1600ºC.
C22B 9/10 - General processes of refining or remelting of metals; Apparatus for electroslag or arc remelting of metals with refining or fluxing agents; Use of materials therefor
C22B 23/02 - Obtaining nickel or cobalt by dry processes
C22B 9/10 - General processes of refining or remelting of metals; Apparatus for electroslag or arc remelting of metals with refining or fluxing agents; Use of materials therefor
65.
METHOD FOR MANUFACTURING GRANULATED BODY FOR LITHIUM ADSORPTION
Provided is a method for manufacturing a granulated body for lithium adsorption with which it is possible to sufficiently suppress elution of manganese in an elution step in production of lithium on a commercial basis. This method for manufacturing a granulated body for lithium adsorption comprises: a step for kneading a powder of a precursor of a lithium adsorbent and a binder to obtain a kneaded product; a granulating step for molding the kneaded product to obtain a first granulated body; and a sintering step for sintering the first granulated body to obtain a second granulated body. This configuration makes it possible to change the valence of manganese included in the precursor of the lithium adsorbent from 2 to 4, thereby suppressing elution of manganese in the elution step. This configuration also makes it possible to repeatedly use the lithium adsorbent in the production on a commercial basis. In addition, since the concentration of manganese in an eluent obtained in the elution step can be made low, the load in steps after the elution step can be reduced.
B01J 20/30 - Processes for preparing, regenerating or reactivating
B01J 2/00 - Processes or devices for granulating materials, in general; Rendering particulate materials free flowing in general, e.g. making them hydrophobic
Provided are infrared absorbing composite microparticles which are surface-treated infrared absorbing microparticles in each of which the surface of an infrared absorbing microparticle is coated with a coating film containing at least one component selected from a hydrolysis product of a metal chelate compound, a polymer of a hydrolysis product of a metal chelate compound, a hydrolysis product of a metal cyclic oligomer compound, and a polymer of a hydrolysis product of a metal cyclic oligomer compound, in which a silicon compound is present in at least one location selected from a location inside the coating film, a location on the coating film and a location in the vicinity of the coating film in each of the infrared absorbing composite microparticles.
Provided is a method for producing high-purity cobalt sulfate by separating impurities and cobalt from a cobalt chloride solution containing impurities without using an electrolysis step. The method involves sequentially performing: a copper removal step (S1) for adding a sulfurizing agent to a cobalt chloride solution containing at least one impurity selected from among copper, zinc, manganese, calcium, and magnesium to produce a precipitate of a sulfide of copper and separate and remove copper; a neutralization step (S2) for adding a neutralizing agent or a carbonizing agent to the cobalt chloride solution, which has been subjected to the copper removal step (S1), to produce cobalt hydroxide or basic cobalt carbonate and separate magnesium; and a leaching step (S3) for adding sulfuric acid to the cobalt hydroxide or basic cobalt carbonate to obtain a cobalt sulfate solution; and a solvent extraction step (S4) for bringing an organic solvent containing an alkylphosphoric acid-based extractant into contact with the cobalt sulfate solution to extract zinc, manganese, and calcium into the organic solvent and separate and remove zinc, manganese, and calcium. The addition of the neutralizing agent or the carbonizing agent in the neutralization step (S2) is performed by a countercurrent flow multistage process.
C22B 3/38 - Treatment or purification of solutions, e.g. obtained by leaching by liquid-liquid extraction using organic compounds containing phosphorus
C22B 3/44 - Treatment or purification of solutions, e.g. obtained by leaching by chemical processes
68.
ANTIBACTERIAL MATERIAL, ANTIBACTERIAL MATERIAL LIQUID DISPERSION, ANTIBACTERIAL MATERIAL DISPERSION, AND METHOD FOR PRODUCING SAME
Provided is an antibacterial material containing composite tungsten oxide microparticles characterized by being represented by the general formula MxWyOz.
The present invention provides a method by which a valuable metal is able to be recovered with a high recovery rate by effectively and efficiently separating impurities, in particular iron, from a starting material to be processed. A method for producing a valuable metal that contains cobalt (Co), the method comprising: a preparation step in which a starting material that contains at least iron (Fe) and a valuable metal is prepared; a melting step in which a melt is obtained by heating and melting the starting material, and the melt is subsequently formed into a molten material that contains an alloy and slag; and a slag separation step in which the slag is separated from the molten material, thereby recovering the alloy that contains the valuable metal. In the preparation step, the Fe/Co mass ratio in the starting material is controlled to 0.5 or less; and in the melting step, the Co content in the slag that is obtained by heating and melting the starting material is set to 1% by mass or less.
Provided is a method of effectively and efficiently separating impurities, in particular, iron contained in a raw material to be processed, and recovering valuable metal at a high rate of recovery. Provided is a method of producing valuable metal including cobalt (Co), comprising: a preparation step for preparing a raw material containing at least iron (Fe) and the valuable metal; a fusing step for heating and fusing the raw material into a melt and thereafter making the melt into a fusion containing alloy and slag; and a slag separation step for separating the slag out from the fusion to recover alloy containing the valuable metal. In the preparation step, the mass ratio of Fe/Co in the raw material is controlled to 0.5 or less. In the fusion step, the oxygen partial pressure in the melt generated by heating and fusing the raw material is made to be 10-9.0 atm or less.
Provided is conductive paste which is for gravure printing, and which can suppress separation between a conductive powder and a ceramic powder. This conductive paste for gravure printing includes a conductive powder, a ceramic powder, a dispersant, a binder resin, and organic solvents. The organic solvents include a first organic solvent, and a solvent other than the first organic solvent. The binder resin contains a butyral-based resin. The first organic solvent is at least one selected from the group consisting of ester-based solvents and ether-based solvents. An HSP distance between an HSP value of the first organic solvent and an HSP value of the butyral-based resin is less than that between an HSP value of the solvent other than the first organic solvent and the HSP value of the butyral-based resin.
C04B 35/495 - Shaped ceramic products characterised by their composition; Ceramic compositions; Processing powders of inorganic compounds preparatory to the manufacturing of ceramic products based on oxides based on vanadium, niobium, tantalum, molybdenum or tungsten oxides or solid solutions thereof with other oxides, e.g. vanadates, niobates, tantalates, molybdates or tungstates
[Problem] To provide: a magnetostrictive member having a high magnetostrictive constant and parallel magnetostriction, with little variation in the magnetostrictive constant and parallel magnetostriction between members; and a method for producing a magnetostrictive member. [Solution] This magnetostrictive member is a plate-shaped body that is composed of crystals of an iron-based alloy having magnetostrictive characteristics and that has obverse and reverse surfaces. In one of the front and rear surfaces, the surface roughness Ra and the thickness of the magnetostrictive member satisfy formula (1). Formula (1): log Ra≥0.48t−0.62 (in formula (1), log represents a common logarithm, Ra represents the surface roughness (μm), and t represents the thickness (mm) of the magnetostrictive member.)
B24B 7/22 - Machines or devices designed for grinding plane surfaces on work, including polishing plane glass surfaces; Accessories therefor characterised by a special design with respect to properties of the material of non-metallic articles to be ground for grinding inorganic material, e.g. stone, ceramics, porcelain
Provided is a method for producing high-purity cobalt sulfate by separating impurities and cobalt from a cobalt chloride solution containing impurities without using an electrolysis step. The present invention involves sequentially executing: a first solvent extraction step (S1) for bringing an organic solvent containing an alkylphosphoric acid-based extraction agent into contact with a cobalt chloride solution containing impurities and extracting, from the solution, zinc, manganese, and calcium, by using the organic solvent to separate and remove the zinc, manganese, and calcium; a copper removal step (S2) for adding a sulfiding agent to the cobalt chloride solution and causing precipitation of copper sulfide to separate and remove the same; a second solvent extraction step (S3) for bringing an organic solvent containing a carboxylic acid extraction agent into contact with the cobalt chloride solution to extract cobalt therefrom by using the organic solvent, and thereafter, back-extracting cobalt using sulfuric acid to obtain a cobalt sulfate solution; and a step (S4) for crystallizing the cobalt sulfate solution obtained through the second solvent extraction step (S3). According to the present invention, high-purity cobalt sulfate can be directly produced by separating cobalt and impurities including magnesium, without using an electrolysis step.
C22B 3/38 - Treatment or purification of solutions, e.g. obtained by leaching by liquid-liquid extraction using organic compounds containing phosphorus
C22B 3/44 - Treatment or purification of solutions, e.g. obtained by leaching by chemical processes
The present invention provides a method for producing a valuable metal from a starting material that contains waste lithium ion batteries, the method being capable of effectively obtaining a metal which has a reduced phosphorus content. The present invention provides a method for producing a valuable metal from a starting material that contains waste lithium ion batteries containing phosphorus, the method comprising: a melting step in which the starting material is melted, thereby obtaining a melt; and a slag separation step in which slag is separated from the melt and an alloy containing a valuable metal is recovered. According to the present invention, an alloy is recovered, while making it sure that the recovery ratio of cobalt from the starting material is from 95.0% to 99.6%, thereby suppressing the phosphorus content in the alloy to 0.1% by mass or less.
Provided is a method that is for producing, from a raw material containing an oxide including nickel and cobalt, a valuable metal containing said nickel and cobalt, and that enables the degree of reduction of an alloy obtained through a melting process to be adjusted efficiently and properly. The method for producing a valuable metal from a raw material containing an oxide including nickel and cobalt according to the present invention comprises: a melting step for obtaining a melted product by performing a melting process on the raw material; and a slag separation step for separating a slag from the melted product and recovering an alloy containing the valuable metal. In the melting step, the degree of reduction in the melting process is determined on the basis of the proportion of the amount of cobalt (cobalt recovery rate) in the produced alloy, with respect to the amount of cobalt in the raw material, and, if the degree of reduction is determined to be excessive, the raw material containing an oxide including nickel and cobalt is added as an oxidizer.
Provided is an infrared absorbing fiber comprising fibers and organic-inorganic hybrid infrared absorbing particles, wherein each of the organic-inorganic hybrid infrared absorbing particles includes an infrared absorbing particle and a coating resin coating at least a part of the surface of the infrared absorbing particle, and the organic-inorganic hybrid infrared absorbing particles are disposed in one or more portions selected from the inside and the surface of the fibers.
D06M 11/32 - Treating fibres, threads, yarns, fabrics or fibrous goods made from such materials, with inorganic substances or complexes thereof; Such treatment combined with mechanical treatment, e.g. mercerising with oxygen, ozone, ozonides, oxides, hydroxides or percompounds; Salts derived from anions with an amphoteric element-oxygen bond
D06M 11/48 - Oxides or hydroxides of chromium, molybdenum or tungsten; Chromates; Dichromates; Molybdates; Tungstates
D06M 23/08 - Processes in which the treating agent is applied in powder or granular form
xyzz (where M is one or more elements selected from Cs, Rb, K, Tl, Ba, Ca, Sr, and Fe, W is tungsten, O is oxygen, 0.25 ≤ x/y ≤ 0.39, and 2.70 ≤ z/y ≤ 2.90).
Provided is a lithium-containing solution production method which makes it possible to suppress the costs of lithium production by increasing the lithium content in a solution after an elution step and suppressing the amount of an eluted solution to be used in a step which follows the elution step. This lithium-containing solution production method involves executing the following, in this order: an adsorption step for obtaining adsorbed lithium manganate by contacting a low-lithium-content solution to a lithium adsorbent obtained from lithium manganate; an elution step for obtaining an eluted solution by contacting the adsorbed lithium manganate and an acid-containing solution to one another; and a manganese oxidation step for obtaining a lithium-containing solution, the manganese concentration of which is minimized, by oxidizing the manganese. The acid-containing solution contains a substance obtained by adding an acid to the eluted solution. This production method makes it possible to suppress the cost of producing a lithium-containing solution, to increase the lithium content in an eluted solution following an elution step and to minimize the amount of acid used in the elution step.
C22B 3/24 - Treatment or purification of solutions, e.g. obtained by leaching by physical processes, e.g. by filtration, by magnetic means by adsorption on solid substances, e.g. by extraction with solid resins
C22B 3/44 - Treatment or purification of solutions, e.g. obtained by leaching by chemical processes
81.
TRANSPARENT CONDUCTIVE FILM, METHOD FOR PRODUCING TRANSPARENT CONDUCTIVE FILM, TRANSPARENT CONDUCTIVE MEMBER, ELECTRONIC DISPLAY DEVICE, AND SOLAR BATTERY
Provided is a transparent conductive film containing an alkali tungsten bronze. In a powder X-ray diffraction pattern, the alkali tungsten bronze shows a hexagonal crystal pattern, and there is no orthorhombic, trigonal, or pyrochlore phase shift.
ELECTROMAGNETIC WAVE ABSORBENT BODY, SYSTEM COMPRISING ELECTROMAGNETIC WAVE ABSORBENT BODY, AND ELECTROMAGNETIC WAVE ABSORPTION METHOD USING ELECTROMAGNETIC WAVE ABSORBENT BODY
rrr' at 100 MHz and the thickness T (unit: μm) of the disc-shaped dielectric satisfy expressions (1) and (2) (where c is the speed of light (3.0×1014 μm/s)).
[Problem] To provide: a magnetostrictive member that has a high magnetostriction constant and high parallel magnetostriction, and has a small variation in magnetostriction constant and parallel magnetostriction between members; and a method for manufacturing a magnetostrictive member. [Solution] This magnetostrictive member is composed of a single crystal of an iron-based alloy having magnetostriction characteristics, and is a plate-shaped body having the longitudinal direction and the lateral direction, wherein the lattice constant of the <100> orientation in the lateral direction is greater than the lattice constant of the <100> orientation in the longitudinal direction.
H01L 41/20 - Selection of materials for magnetostrictive elements
H01L 41/47 - Processes or apparatus specially adapted for the assembly, manufacture or treatment of magnetostrictive devices or of parts thereof
H02N 2/18 - Electric machines in general using piezoelectric effect, electrostriction or magnetostriction producing electrical output from mechanical input, e.g. generators
85.
MAGNETOSTRICTIVE MEMBER AND METHOD FOR PRODUCING MAGNETOSTRICTIVE MEMBER
[Problem] To provide a magnetostrictive member having a high magnetostrictive constant and parallel magnetostriction, with little variation in the magnetostrictive constant and parallel magnetostriction between members, and a method for producing a magnetostrictive member. [Solution] The magnetostrictive member is a plate-like body made of a single crystal of an iron-based alloy having magnetostrictive characteristics and having a longitudinal direction and a lateral direction. The lattice constant of the <100> orientation in the longitudinal direction is equal to or less than the average value of the lattice constant calculated from the lattice constants of the <100> orientation in the longitudinal direction, the lateral direction, and a direction orthogonal to the longitudinal direction and the lateral direction.
H01L 41/20 - Selection of materials for magnetostrictive elements
H01L 41/47 - Processes or apparatus specially adapted for the assembly, manufacture or treatment of magnetostrictive devices or of parts thereof
H02N 2/18 - Electric machines in general using piezoelectric effect, electrostriction or magnetostriction producing electrical output from mechanical input, e.g. generators
Provided are electromagnetic wave absorbing particles containing a composite oxide, wherein: the composite oxide contains element A, which is one or more elements selected from rare earth elements, and element B, which is Bi; and when the mole number of element A and the mole number of element B contained in the composite oxide are denoted by x and y, respectively, the following relation is satisfied: 1 ≤ x/y ≤ 3.
Provided are electromagnetic wave absorbing particles containing a composite oxide, wherein: the composite oxide contains an element A, which is one or more elements selected from H, alkali metals, Mg, and alkaline earth metals, and an element B, which is one or more elements selected from V, Nb, and Ta; and the electromagnetic wave absorbing particles satisfy the relationship 0.001≤x/y≤1.5, where x is the substance amount of the element A contained in the composite oxide, and y is the substance amount of the element B.
H01F 1/11 - Magnets or magnetic bodies characterised by the magnetic materials therefor; Selection of materials for their magnetic properties of inorganic materials characterised by their coercivity of hard-magnetic materials non-metallic substances, e.g. ferrites in the form of particles
H01F 1/113 - Magnets or magnetic bodies characterised by the magnetic materials therefor; Selection of materials for their magnetic properties of inorganic materials characterised by their coercivity of hard-magnetic materials non-metallic substances, e.g. ferrites in the form of particles in a bonding agent
H01F 1/34 - Magnets or magnetic bodies characterised by the magnetic materials therefor; Selection of materials for their magnetic properties of inorganic materials characterised by their coercivity of soft-magnetic materials non-metallic substances, e.g. ferrites
H01F 1/36 - Magnets or magnetic bodies characterised by the magnetic materials therefor; Selection of materials for their magnetic properties of inorganic materials characterised by their coercivity of soft-magnetic materials non-metallic substances, e.g. ferrites in the form of particles
H01F 1/37 - Magnets or magnetic bodies characterised by the magnetic materials therefor; Selection of materials for their magnetic properties of inorganic materials characterised by their coercivity of soft-magnetic materials non-metallic substances, e.g. ferrites in the form of particles in a bonding agent
C08K 3/01 - Use of inorganic substances as compounding ingredients characterised by their specific function
Provided is a method with which it is possible to inexpensively recover a valuable metal. The present invention is a method for recovering a valuable metal, the method including the following steps: a readying step for readying a charging material containing at least lithium (Li) and a valuable metal; an oxidation reduction/melting step for applying an oxidation treatment and a reduction/melting treatment on the charging material and obtaining a reduced material containing a valuable-metal-containing molten alloy and slag; and a slag separation step for separating the slag from the reduced material and recovering the molten alloy. The molar ratio (Li/Al ratio) of lithium (Li) to aluminum (Al) in the slag is made to be 0.15 or above and below 0.40, and the molar ratio (Ca/Al) of calcium (Ca) to aluminum (Al) in the slag is made to be 0.15 or above.
Provided is a method with which it is possible, when manufacturing an ore slurry containing a metal ore such as nickel oxide ore as a raw material, to obtain an ore slurry in which the solid content and the slurry density are raised without increasing, inter alia, the amount of flocculant used. The present invention is a method for manufacturing an ore slurry in which a slurry containing a metal ore is concentrated and an ore slurry to be provided to a reaction is manufactured, the method including using at least two thickeners, and thickening a prescribed proportion of the slurry, not including the entire amount, in two stages. The second-stage thickening performed on the prescribed proportion of the slurry that has been subjected to the first-stage thickening, and thickening performed on the remaining proportion of the slurry, are performed using the same thickener.
xyzz (wherein element M represents one or more elements selected from among H, He, alkali metals, alkaline earth metals, rare earth elements, Mg, Zr, Cr, Mn, Fe, Ru, Co, Rh, Ir, Ni, Pd, Pt, Cu, Ag, Au, Zn, Cd, Al, Ga, In, Tl, Si, Ge, Sn, Pb, Sb, B, F, P, S, Se, Br, Te, Ti, Nb, V, Mo, Ta, Re, Be, Hf, Os, Bi and I; 0.001 ≤ x/y ≤ 1; and 3.0 < z/y).
xyzz (herein, the M element is one or more elements selected from H, He, an alkali metal, an alkaline earth metal, a rare earth element, Mg, Zr, Cr, Mn, Fe, Ru, Co, Rh, Ir, Ni, Pd, Pt, Cu, Ag, Au, Zn, Cd, Al, Ga, In, Tl, Si, Ge, Sn, Pb, Sb, B, F, P, S, Se, Br, Te, Ti, Nb, V, Mo, Ta, Re, Be, Hf, Os, Bi, and I; W is tungsten; O is oxygen; 0.001 ≤ x/y ≤ 1; and 3.0 < z/y).
C08L 33/06 - Homopolymers or copolymers of esters of esters containing only carbon, hydrogen, and oxygen, the oxygen atom being present only as part of the carboxyl radical
C08L 69/00 - Compositions of polycarbonates; Compositions of derivatives of polycarbonates
C08L 101/00 - Compositions of unspecified macromolecular compounds
The purpose of the present invention is to provide a flotation method with which a flotation process can be efficiently performed even when the substance to undergo flotation is fine mineral particles including particles having a particle size of about 25 μm or less. This is a flotation method that separates and recovers mineral particles through a flotation process, wherein mineral particles are floated in a liquid to be processed by using fine bubbles having a bubble diameter of 200 μm or less and bubbles having a diameter larger than the fine bubbles.
Provided is a method for preparing a nickel oxide ore slurry with which it is possible to wet-sift a nickel oxide ore to efficiently separate an ore slurry collected on the minus-sieve side by sedimentation. The present invention is a method for preparing a nickel oxide ore slurry to be used as a raw material for wet-smelting of nickel by high-pressure oxygen leaching, the method including: a step in which a nickel oxide ore is wet-sifted, the nickel oxide ore being blended so that the grade of nickel or the grade of an element other than nickel is a prescribed grade; and a step in which a flocculant is added to a minus-sieve nickel oxide ore slurry that is obtained to concentrate the slurry by sedimentation separation. The sedimentation separation is performed after the slurry concentration of the minus-sieve nickel oxide ore slurry is adjusted preferably to at least 3-6% by mass.
22O adsorption per unit area of from 0.30 mg/m2to 0.70 mg/m200 of 0.5; and the dispersant has a relative dielectric constant of 10 or more, while containing at least one compound that is selected from the group consisting of (1) compounds having an acid group and (2) compounds having an amine group.
This bubble measurement apparatus for measuring bubbles moving in a liquid is characterized by having: a metrology chamber where a liquid including bubbles to be measured is introduced from a lower side thereof and an imaging surface is provided to a position at which the introduced bubbles come up; an imaging device that captures images of the bubbles passing through the imaging surface; an introduction pipe which is disposed below the metrology chamber and through which the bubbles are introduced to the metrology chamber; a supply pump which is disposed above the metrology chamber and which sucks up and supplies, to the metrology chamber, the liquid including the bubbles; and a flow rate adjustment mechanism which adjusts the flow rate of the liquid passing through the imaging surface. The bubble measurement apparatus is also characterized in that: the flow rate of the liquid passing through the imaging surface is adjusted by the flow rate adjustment mechanism in accordance with a range where the bubbles can be measured; and the range is determined in advance in accordance with the shutter speed and the imaging resolution of the imaging device.
Provided is a conductive paste for gravure printing that makes it possible to reduce the surface waviness of a dried film. A conductive paste for gravure printing that includes a conductive powder, a ceramic powder, a dispersant, a binder resin, and an organic solvent that includes a first organic solvent that is at least one compound selected from the group that consists of isobornyl acetate, methyl isobutyl ketone, and diisobutyl ketone.
Surface-treated infrared-absorbing microparticles comprising infrared-absorbing microparticles and a coating film that includes a hydrate of a metal oxide formed so as to cover the surface thereof, in which the carbon concentration, when measured by a combustion infrared absorption method, is 5.0 mass% or lower.
A method for recovering lithium, wherein after obtaining a molten metal that contains a valuable metal and a molten slag that contains at least aluminum and lithium by melting a lithium ion secondary battery to be discarded, lithium is recovered from the slag that contains at least aluminum and lithium, said slag having been separated from the molten metal that contains a valuable metal. With respect to this method for recovering lithium, the melting conditions of the lithium ion secondary battery are adjusted so that the mass ratio of aluminum to lithium contained in the slag, namely the value of aluminum/lithium is 6 or less; a leachate, into which lithium contained in the slag has leached, is obtained by bringing the slag and an aqueous liquid into contact with each other; and a purified solution, in which lithium is dissolved, is obtained by means of solid-liquid separation by bringing the leachate and a basic substance into contact with each other, thereby having unwanted metals contained in the leachate precipitate in the form of a poorly soluble substance.
B22F 9/24 - Making metallic powder or suspensions thereof; Apparatus or devices specially adapted therefor using chemical processes with reduction of metal compounds starting from liquid metal compounds, e.g. solutions
C22C 19/03 - Alloys based on nickel or cobalt based on nickel
patents
