Recovery of cobalt values

Details Recovery of cobalt values Recovery of cobalt values

1979-10-31

1981-04-14

Ozaki, G.

Specialized metallurgical processes, compositions for use therei

Processes

Free metal or alloy reductant contains magnesium

75103, 75119, 423139, C22B 2304

Patent

active

042617375

ABSTRACT:
The present process involves an improvement in the hydrometallurgical recovery of metal values from metal bearing sources such as ores and the like. The desired metal values are recovered by subjecting a metal bearing source to a reductive roast in a reducing atmosphere after having treated said source with at least one additive. Following the reductive roast the reduced metal bearing source is cooled and extracted by a leaching operation. The separation of various metal values in the metal bearing source may be effected by adding a solid adsorbent to the leach solution whereby selective metal ions are adsorbed thereon. The improvement in the present process comprises pretreating the solid adsorbent prior to use thereof with an acid thereby increasing the loading capacity of the metal ions in the adsorbents as well as kinetics of metal adsorption.

REFERENCES:
patent: 1833276 (1931-11-01), Busch
patent: 3928020 (1975-12-01), Weir
patent: 3970553 (1976-07-01), Terajima et al.
patent: 4044094 (1977-08-01), Barner et al.
Helfferich, Ion Exchange, McGraw-Hill Book Co., 1962, pp. 17 and 18.

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