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Title: Method for aqueous gold thiosulfate extraction using copper-cyanide pretreated carbon adsorption

A gold thiosulfate leaching process uses carbon to remove gold from the leach liquor. The activated carbon is pretreated with copper cyanide. A copper (on the carbon) to gold (in solution) ratio of at least 1.5 optimizes gold recovery from solution. To recover the gold from the carbon, conventional elution technology works but is dependent on the copper to gold ratio on the carbon.
Authors:
; ;
Publication Date:
OSTI Identifier:
1089418
Report Number(s):
8,500,847
13/094,139
DOE Contract Number:
FC26-02NT41607; FC26-05NT42457
Resource Type:
Patent
Research Org:
Virginia Polytechnic Institute & State University (US)
Sponsoring Org:
USDOE
Country of Publication:
United States
Language:
English
Subject:
37 INORGANIC, ORGANIC, PHYSICAL, AND ANALYTICAL CHEMISTRY