C - Chemistry – Metallurgy – 22 – B
Patent
C - Chemistry, Metallurgy
22
B
53/289, 53/372
C22B 7/00 (2006.01) C22B 3/00 (2006.01) C22B 9/00 (2006.01) C22B 11/00 (2006.01) C22B 11/02 (2006.01)
Patent
CA 1036827
Abstract There is disclosed a process for separating a noble metal from an alloy of the noble metal, copper, and at least one other non-ferrous metal, especially from coin metal, wherein the alloy is melted and granulated into fine-grained granules which have a large surface area and contain a large number of segregations promoting the dissolving, and the obtained granules are dissolved to recover the copper and the noble metal.
211390
Kapanen Aarne A.
Lindroos Leo E.
Rantanen Raimo U.
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