Hydrometallurgical recovery of metal values

Details Hydrometallurgical recovery of metal values Hydrometallurgical recovery of metal values

C - Chemistry, Metallurgy

22

B

53/303, 53/369

C22B 3/00 (2006.01) C22B 1/00 (2006.01) C22B 3/14 (2006.01) C22B 15/00 (2006.01) C22B 23/00 (2006.01) C22B 47/00 (2006.01)

Patent

CA 1094817

ABSTRACT OF THE DISCLOSURE In the hydrometallurgical recovery of metal values from ores and the like in which a metal bearing source is reduced in the presence of at least one additive at temperatures ranging from about 500° to about 900° C. and thereafter extracted, the improvement which comprises pretreating only a portion of the feed stock with the additive prior to the reducing roast.

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