Method for beneficiating nickel sulfide concentrates and...

Details Method for beneficiating nickel sulfide concentrates and... Method for beneficiating nickel sulfide concentrates and...

C - Chemistry, Metallurgy

22

B

C22B 23/00 (2006.01) B03B 9/00 (2006.01) B03D 1/02 (2006.01)

Patent

CA 2098522

The present invention relates to a method for beneficiating nickel sulfide concentrates or other corresponding mixtures, unsuitable for smelting, by combining the use of both pyrometallurgical and hydrometallurgical processes, so that there are formed two separate concentrates, the first of which is suited to pyrometallurgical and the second to hydrometallurgical treatment. In the pyrometallurgical concentrate, the valuable metal content increases as a consequence of the treatment, and the Fe/MgO ratio of this concentrate is at least 2.6.

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