Process for the recovery of noble metals from ores

Details Process for the recovery of noble metals from ores Process for the recovery of noble metals from ores

C - Chemistry, Metallurgy

22

B

53/225

C22B 3/00 (2006.01) B01D 15/00 (2006.01) C25C 1/20 (2006.01)

Patent

CA 1220345

\ ABSTRACT Hydrometallurgical recovery of noble metals using thiourea The present invention provides a process for the hydrometallurgical recovery of noble metals from materials containing them by treatment with thiourea in an aqueous, acidic medium in the presence of an oxidation agent, wherein the aqueous medium simult- aneously contains an oxidation agent and a reduction agent.

447915

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