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US Patent 7559973 Precious metal recovery using thiocyanate lixiviant

Patent 7559973 was granted and assigned to Newmont (company) on July, 2009 by the United States Patent and Trademark Office.

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Current Assignee
Newmont (company)
Newmont (company)
Patent Jurisdiction
United States Patent and Trademark Office
United States Patent and Trademark Office
Patent Number
7559973
Date of Patent
July 14, 2009
Patent Application Number
11868378
Date Filed
October 5, 2007
Patent Primary Examiner
‌
George Wyszomierski
Patent abstract

For removal of precious metal from thiocyanate leach solution, precious metal is transferred from precious metal-thiocyanate complex to precious metal-cyanide complex. Preparation of thiocyanate leach solution includes dissolving cyanide in an aqueous liquid and converting the cyanide to dissolved thiocyanate.

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