Process for recovering gallium

Details Process for recovering gallium Process for recovering gallium

1978-10-03

1980-03-18

Carter, Herbert T.

Chemistry of inorganic compounds

Treating mixture to obtain metal containing compound

Group iiia metal or beryllium

423139, 423DIG14, 75101BE, 423132, C01G 1500, C01F 700, C01G 4900

Patent

active

041939689

ABSTRACT:
The invention provides a process for recovering gallium from calcined clay leached with hydrochloric acid. The leach solution containing aluminum, ferric and gallium chlorides is treated by ion exchange to first remove aluminum ions, following which the solution containing ferric and gallium chlorides is treated to reduce the ferric ions to ferrous ions. The reduced solution is acidified with hydrochloric acid sufficiently to insure that the gallium is present in the form GaCl.sub.4 - ions, and is then again treated by ion exchange to separate the ferrous ions from the gallium for ultimate recovery of the latter.

REFERENCES:
patent: 3082062 (1963-03-01), Preuss
patent: 3144304 (1964-08-01), Nagumo et al.
patent: 3151946 (1964-10-01), Nagumo et al.
patent: 3725527 (1973-04-01), Yamamura et al.

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