Process for the treatment of platinum group metals and gold

Details Process for the treatment of platinum group metals and gold Process for the treatment of platinum group metals and gold

C - Chemistry, Metallurgy

22

B

53/168, 53/225

C22B 5/04 (2006.01) C22B 3/06 (2006.01)

Patent

CA 1068116

A B S T R A C T A process for the dissolution of precious metal values in a concentrate thereof wherein the concentrate is caused to alloy with aluminium and the alloy is then leached in at least two steps, the first of which is to remove base metals and in the second of which the precious metals are dissolved using hydrochloric acid and chlorine gas as an oxidant.

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