Method of recovering the component metals from sintered metal ca

Details Method of recovering the component metals from sintered metal ca Method of recovering the component metals from sintered metal ca

1977-10-27

1979-02-20

Andrews, R. L.

Chemistry: electrical and wave energy

Processes and products

Electrostatic field or electrical discharge

2041291, 20412975, 204140, 2041415, 204146, 423 55, C25F 500, C25C 108

Patent

active

041405978

ABSTRACT:
The disclosure is of a simple and economical method for recovering the component metals from a sintered metal carbide. The sintered metal carbide is employed as an anode and treated by electrolysis in an acid solution. The metal carbide e.g. WC dissolves and precipitates as a metal hydroxide. At the same time the metal e.g. Co, which is a sintering binder, is electro-deposited on the surface of a cathode. The metal hydroxide may be washed, calcined and reduced in hydrogen gas to obtain a pure metal powder.

REFERENCES:
patent: 3959096 (1976-05-01), Langer

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