Method for recovering gallium value from aqueous solution of cru

Details Method for recovering gallium value from aqueous solution of cru Method for recovering gallium value from aqueous solution of cru

1989-08-17

1991-01-22

Russel, Jeffrey E.

Chemistry of inorganic compounds

Treating mixture to obtain metal containing compound

Group iiia metal or beryllium

423122, C22B 5800

Patent

active

049869698

ABSTRACT:
An efficient method is proposed for the recovery of a trace amount of a gallium value from an aqueous solution containing a large amount of an aluminum salt as the principal solute as in the solution which is prepared by dissolving the precipitates obtained by neutralizing a Bayer's solution with carbon dioxide in hydrochloric or sulfuric acid. The method comprises admixing the aqueous solution with a water-soluble ferrocyanide compound, e.g., sodium ferrocyanide, as a precipitant of gallium ferrocyanide in such a controlled small amount as not to exceed 2.5 times by moles of the gallium ions in the starting solution so that coprecipitation of aluminum ferrocyanide is minimized.

REFERENCES:
patent: 4135917 (1979-01-01), Badaliants
A Textbook of Inorganic Chemistry, vol. 4, p. 149, (1917) by H. F. V. Little.

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