Chemistry of inorganic compounds – Treating mixture to obtain metal containing compound – Group iiia metal or beryllium
Patent
1989-08-01
1990-10-23
Stoll, Robert L.
Chemistry of inorganic compounds
Treating mixture to obtain metal containing compound
Group iiia metal or beryllium
423DIG14, 204105R, C01G 1500
Patent
active
049650548
ABSTRACT:
An improved process of extraction of gallium from aqueous solutions thereof to provide for recovery of the gallium in a very pure form, either as the metal or as the hydroxide. The process involves two extraction steps and two strip or scrub steps employing different extractant in each extraction and an acidic strip step after the first extraction and a basic strip step after the second extraction. The first extraction involves the use of 8-hydroxyquinoline extractant while the second extraction employs an amine extractant. The extraction process is a liquid-liquid process in which the water insoluble extractant compounds are employed in a water insoluble, water immiscible, organic solvent.
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Bos Steven J.
Henkel Corporation
Jaeschke Wayne C.
Span Patrick J.
Stoll Robert L.
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