Method for beneficiating nickel sulfide concentrates and corresp

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

1993-06-11

1995-01-31

Andrews, Melvyn J.

Specialized metallurgical processes, compositions for use therei

Processes

Producing or treating free metal

75629, 75743, 209164, 4231501, C22B 2300, C22B 2302

Patent

active

053856007

ABSTRACT:
The invention relates to a method for fully beneficating 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 concentrate going to pyrometallurgical processing, the valuable metal content increases as a consequence of the treatment, and the Fe/MgO ratio of this concentrate is at least 2.6.

REFERENCES:
patent: 2556215 (1951-06-01), Queneau et al.
patent: 2668107 (1954-02-01), Gordon et al.

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