Process for recovering metallic gallium from gallium compound-co

Details Process for recovering metallic gallium from gallium compound-co Process for recovering metallic gallium from gallium compound-co

1988-04-18

1989-03-14

Rutledge, L. Dewayne

Specialized metallurgical processes, compositions for use therei

Processes

Electrothermic processes

75 84, C22B 700

Patent

active

048121673

ABSTRACT:
A sludge-like waste containing fine particulate gallium compound, an organic substance capable of forming coke upon calcination and a light oil or water are treated for the recovery of the gallium value as molten metallic gallium by a process wherein the waste is first dried to form a dense aggregate of the particulate gallium compound, followed by calcination and vacuum thermal decomposition. The aggregate may be molded under pressure into any desired shape before calcination.

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patent: 3075904 (1963-01-01), Hutter et al.
patent: 3166405 (1965-01-01), Kulifay
patent: 3168394 (1965-02-01), Johnson
patent: 3325383 (1967-06-01), Iwantscheff et al.
patent: 3512958 (1970-05-01), Yokozawa
patent: 4362560 (1982-12-01), Abrjutin et al.
patent: 4767455 (1988-08-01), Jourdan

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