Production of cobalt and nickel powder

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

1984-05-23

1985-10-08

Doll, John

Specialized metallurgical processes, compositions for use therei

Processes

Electrothermic processes

75 05A, 75108, 75119, C22B 2304

Patent

active

045458146

ABSTRACT:
Ultrafine cobalt and nickel powders are produced from sulfate solutions containing ammonia under hydrogen pressure in the presence of a small amount of a reductant from the group consisting of metal hydrides, metal borohydrides and metal borides. Cobalt powders having a particle size of about 2 micrometers produced in accordance with the invention have been used successfully in the production of cobalt-cemented tungsten carbide.

REFERENCES:
patent: 2796343 (1957-06-01), Shaw
patent: 3669643 (1970-05-01), Bagley et al.
patent: 4096316 (1978-06-01), Tamai et al.

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