Title
Method for Aqueous Gold Thiosulfate Extraction Using Copper-Cyanide Pretreated Carbon Asdortion
Document Type
Article
Publication Date
8-6-2013
Patent Number
US 8,500,847 B2
Abstract
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) ration 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.
Filing Number
13/094,139
Assignees
Courtney Young, Mariam Melashvili, Nicholas V. Gow
COinS