Method for producing cobaltic hexammine compounds and cobalt met

Details Method for producing cobaltic hexammine compounds and cobalt met Method for producing cobaltic hexammine compounds and cobalt met

1979-05-14

1980-08-19

Ozaki, G.

Specialized metallurgical processes, compositions for use therei

Processes

Electrothermic processes

75119, 423143, C22B 2304

Patent

active

042182409

ABSTRACT:
Cobalt is recovered by treating aqueous solutions containing ammonia and cobalt ions with a sufficient amount of an acid in the presence of a catalyst to convert the cobalt ions to a cobalt hexammine ion which is precipitated and separated from the resulting solution. According to another aspect of the invention, a cobalt compound is precipitated from an aqueous solution of cobaltic hexammine halide by treating the solution with a metallic hydroxide and the precipitate is subsequently reduced to form fine cobalt powder.

REFERENCES:
patent: 2826499 (1958-03-01), Schlecht et al.
patent: 2879137 (1959-03-01), Bare et al.
patent: 3928530 (1975-12-01), Bakker et al.
patent: 3933976 (1976-01-01), Nikolic et al.
patent: 4093450 (1978-06-01), Doyle et al.
patent: 4108640 (1978-08-01), Wallace et al.

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