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2023
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Invention
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Method for carbon-catalysed thiosulfate leaching of gold-bearing materials.
The present disclosu... |
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2020
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Invention
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Method for recovering precious metals from thiosulfate leach solutions. The present disclosure is... |
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Invention
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Method for recovering gold from refractory materials. The present disclosure is directed to a pro... |
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Invention
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Method for recovering precious metals from thiosulfate leach solutions.
The present disclosure i... |
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Invention
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Method for pre-treatment of gold-bearing oxide ores. The disclosure relates to pre-treatment of p... |
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Invention
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Method for carbon-catalysed thiosulfate leaching of gold-bearing materials. The present disclosur... |
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2019
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P/S
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(Based on 44(e)) Common metals; wrought and unwrought common metals, alloys, ingots, common metal... |
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P/S
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Precious metals and their alloys; ornaments made of or coated with precious metals, gold, silver ... |
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P/S
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Jewellery coated with precious metal alloys; jewellery; precious stones Mining extraction service... |
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P/S
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(Based on 44(d) Priority Application) (Based on 44(e)) Precious metals and their alloys; precious... |
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2018
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P/S
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Development of marketing strategies and marketing concepts for others in the fields of precious a... |
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2017
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Invention
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Co-current and counter current resin-in-leach in gold leaching processes. A method and system are... |
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P/S
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Gold mining extraction and mining of silver, copper and base metals. Mine design and engineering ... |
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P/S
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Gold mining extraction and mining extraction of silver, copper and base metals Custom mine design... |
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P/S
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Gold mining extraction and mining of silver, copper and base metals.
Mine design and engineering ... |
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2016
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Invention
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Separation of copper minerals from pyrite using air-metabisulfite treatment. The present inventio... |
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2015
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P/S
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gold mining extraction and the mining of silver, copper and base metals |
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2014
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Invention
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Method for arsenic oxidation and removal from process and waste solutions. The disclosure relates... |
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Invention
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Method for arsenic oxidation and removal from process and waste solutions. 5+). A carbon additive... |
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2013
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Invention
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Alkaline and acid pressure oxidation of precious metal-containing materials. The present inventio... |
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Invention
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Recovery of gold from roaster calcine leach tailings. A method to recover gold lost in roaster ca... |
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2012
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Invention
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Method for recovering precious metals and copper from leach solutions. The present disclosure is ... |
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Invention
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Method for recovering precious metals and copper from leach solutions. A process for recovering a... |
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P/S
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Mine design and engineering in the field of mine exploration of precious and base metals |
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P/S
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(Based on Sections 1(a) and 44(e)) Gold mining extraction and mining of silver, copper and base m... |
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2011
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P/S
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Gold mining and the mining of silver, copper and base metals; mine design, engineering and consul... |
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Invention
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Production of zinc sulphate concentrates from a dilute zinc sulphate solution. In an embodiment, ... |
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2010
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Invention
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Separation of copper minerals from pyrite using air-metabisulfite treatment. Embodiments of the p... |
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P/S
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Common metals; wrought and unwrought metals, alloys, ingots, metal bars, intermetallic compounds;... |
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2008
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Invention
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Microbial pre-treatment of double refractory gold ores.
The present invention is directed to rec... |
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Invention
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Microbial pre-treatment of double refractory gold ores. The present invention is directed to reco... |
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Invention
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Process for controlling acid in sulfide pressure oxidation processes. The present invention is di... |
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Invention
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Process for mercury control during pressure oxidation. A method for pressure oxidation of a preci... |
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Invention
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Process for recovering gold and silver from refractory ores. The present invention is directed to... |
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Invention
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Process for recovering platinum group metals using reductants. In the process of recovering plati... |
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Invention
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Method to improve recovery of gold from double refractory gold ores. The present invention is dir... |
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Invention
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Process for mercury control during pressure oxidation. A method for suppressing mercury dissoluti... |
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2007
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Invention
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Selective precipitation of metal sulfides. A method for recovering zinc ions by selective zinc su... |
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Invention
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Process for reduced alkali consumption in the recovery of silver. The present invention is direct... |
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1994
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P/S
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Gold mining and the mining of silver, copper and base metals; planning, designing, engineering an... |
