Production of cobalt and nickel powder

Details Production of cobalt and nickel powder Production of cobalt and nickel powder

1987-06-26

1988-08-02

Stoll, Robert L.

Specialized metallurgical processes, compositions for use therei

Processes

Electrothermic processes

75108, 75119, 148 24, 148105, 148408, 148409, C22B 2304

Patent

active

047611774

ABSTRACT:
Fine cobalt or nickel powder is produced by hydrogen reduction of a sulfate solution in the presence of a base and a strong reductant such as a metal borohydride wherein the base is added stagewise to the solution with the initial addition of base being sufficient to insure an essentially neutral pH at the time of reductant addition.

REFERENCES:
patent: 2796343 (1957-06-01), Shaw et al.
patent: 3669643 (1972-06-01), Bagley et al.
patent: 4096316 (1978-06-01), Tamai et al.
patent: 4545814 (1985-10-01), Chou et al.

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