Compositions and methods for improved precious metal extraction from ore
AssigneeSolugen, Inc.
InventorsJun Su An, Frederyk Ngantung
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Abstract
A method for precious metal extraction comprises contacting a precious metal-containing ore with an improved cyanide extraction agent under conditions suitable for the formation of a coated precious metal-containing ore where the extraction agent comprises (i) a cement and (ii) a cement retarder; and contacting the coated precious metal-containing ore with a cyanide solution to form soluble precious metal complexes. A composition for gold extraction comprising: (i) a cement (ii) a cement retarder and (iii) an inorganic cyanide salt.
Claims28
A method for precious metal extraction comprising:
- contacting a precious metal-containing ore with an improved cyanide extraction agent under conditions suitable for the formation of a coated precious metal-containing ore wherein the extraction agent comprises (i) a cement and (ii) a cement retarder;
- and
- contacting the coated precious metal-containing ore with a cyanide solution to form soluble precious metal complexes.
A composition for gold extraction, comprising:
- (i) a cement;
- (ii) a cement retarder;
- and
- (iii) an inorganic cyanide salt.
A composition for gold extraction comprising:
- (i) a cement (ii) a cement retarder and (iii) an inorganic cyanide salt wherein the cement retarder is a chelant.
Dependencies are inferred from the claim text.