Process for the isolation of noble metals

Details Process for the isolation of noble metals Process for the isolation of noble metals

C - Chemistry, Metallurgy

22

B

53/234

C22B 3/16 (2006.01) C01G 5/00 (2006.01) C01G 7/00 (2006.01) C01G 55/00 (2006.01)

Patent

CA 1235908

Abstract A process is described for the isolation of noble metals from ores or materials containing the latter, wherein cyclic thiourea derivatives, in particular N,N'- ethylenethiourea, in a conconcentration of 0.01 to 2.0% by weight and in an acid medium are used as the extraction agent.

466883

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