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Evgeny Nikolaevich Bespalov

Askar M Kunaev

Igor Vladimirovich Prokopov

Galina Artemievna Ivanova

Boris Alexeevich Smirnov

Elizaveta Ivanovna Ponomareva

Viktor Dmitrievich Ponomarev, Deceased

Elena Leonidovna Shalavina

Tatyana Dmitrievna Ostapenko

Salavat Ishanovich Turakbaev

Turar Baltabaevich Tursunbaev

Gennady Alexeevich Romanov

Arkady Ivanovich Zazubin

Boris Stepanovich Povazhny

Viktor Nikolaevich Vasiliev

A process for the extraction of gallium from sodium aluminate liquors comprises extracting gallium from aluminate liquors by cementation with the aid of a liquid gallium-aluminum alloy. Aluminate liquors produced in the Bayer process, prior to cementation, are freed from various impurities. To this end, the recycle aluminate liquor is cooled to a temperature at which soda crystallizes and vanadium is retained in the liquor, whereupon the crystallized precipitate is separated, while the residual liquor is mixed with the mother aluminate liquor in the ratio of 0.1-1 to 1-0.1. The resultant liquor is cooled down to ambient temperature, and the vanadium precipitate is separated. The process is a major step towards a simpler technique of gallium extraction from aluminate liquors both high and low in gallium. Also, the process permits extracting, directly from aluminate liquors, gallium in a higher degree of purity than can be obtained in the prior art. Furthermore, the process enables valuable vanadium compounds to be recovered from liquors alongside gallium.

Process for extraction of gallium from sodium aluminate liquors

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Evgeny Nikolaevich Bespalov