Methods for selective leaching and extraction of precious metals in organic solvents
AssigneeUniversity of Saskatchewan
InventorsStephen FOLEY, Hiwa SALIMI, Loghman MORADI
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Abstract
The present application relates to methods for leaching and extraction of precious metals. For example, the present application relates to methods of leaching gold, palladium and/or platinum from a substance comprising gold, palladium and/or platinum (such as a gold-containing ore or a platinum group metal (PGM) concentrate) using an organic solvent that is water-miscible or partially water-miscible.
Claims45
A method of leaching gold, palladium and/or platinum from a substance comprising gold, palladium and/or platinum, the method comprising contacting the substance with a mixture comprising:
- (a) an acid;
- (b) an oxidizing agent;
- and
- (c) a water-miscible or partially water-miscible organic solvent, under conditions to leach the gold, palladium and/or platinum from the substance.
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Dependencies are inferred from the claim text.