Process for producing gallium-containing solution from the alumi

Details Process for producing gallium-containing solution from the alumi Process for producing gallium-containing solution from the alumi

1987-06-11

1988-03-01

Stoll, Robert L.

Chemistry of inorganic compounds

Treating mixture to obtain metal containing compound

Group iiia metal or beryllium

75101R, 75114, 75115, 75121, C01G 1500

Patent

active

047285052

ABSTRACT:
Aluminum smelting dust is leached with mineral acids such as sulfuric acid, hydrochloric acid and nitric acid. Oxidizing agents such as potassium permanganate, manganese dioxide, hydrogen peroxide, ozone, potassium chromate, potassium dichromate, ammonium persulfate, sodium hypochlorite, sodium chlorite and sodium chlorate are added to the leach solution. The addition of an oxidizing agent remarkably improves the gallium extraction.

REFERENCES:
patent: 3168372 (1965-02-01), Nagumo et al.
patent: 3325383 (1967-06-01), Iwanscheff et al.
patent: 3890427 (1975-06-01), Dewey et al.
patent: 4094753 (1978-06-01), Charlton et al.
patent: 4252777 (1981-02-01), McDowell et al.

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