Recovery of silver and gold from ores and concentrates

Details Recovery of silver and gold from ores and concentrates Recovery of silver and gold from ores and concentrates

C - Chemistry, Metallurgy

22

B

53/225

C22B 11/06 (2006.01) C22B 3/00 (2006.01) C22B 11/00 (2006.01) C22B 11/12 (2006.01) C25C 1/20 (2006.01)

Patent

CA 1171286

ABSTRACT A process for the recovery of precious metal (12) from a precious metal bearing ore or concentrate (1). This precious metal bearing ore or concentrate (1) is mixed with a strong electrolyte containing chloride ions (2) to pass precious metal (12) into solution (4), at a temperature up to the boiling point of the electrolyte (2). The precious metal (12) is precipitated by contacting the solution (4) with a metal having a potential above that of the precious metal in the electro-chemical series.

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