Recovery of precious metals

Details Recovery of precious metals Recovery of precious metals

C - Chemistry, Metallurgy

22

B

53/220, 53/224

C22B 1/11 (2006.01) C01C 3/08 (2006.01) C01G 7/00 (2006.01) C01G 28/00 (2006.01) C01G 30/00 (2006.01) C22B 11/02 (2006.01) C22B 11/08 (2006.01)

Patent

CA 1213150

14 ABSTRACT OF THE DISCLOSURE The extent of recovery of precious metals, preferably gold and silver, from precious metal ores, concentrates, tailings and wastes which are also sulphide- and arsenic- and/or antimony-bearing, is enhanced by treatment with Caro's acid (H2SO5).

442573

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