The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Oct. 26, 1976
Filed:
Oct. 03, 1975
Elena Leonidovna Shalavina, Alma-Alta, SU;
Elizaveta Ivanovna Ponomareva, Alma-Alta, SU;
Arkady Ivanovich Zazubin, Alma-Alta, SU;
Tatyana Dmitrievna Ostapenko, Alma-Alta, SU;
Galina Artemievna Ivanova, Donetsk, SU;
Gennady Alexeevich Romanov, Alma-Alta, SU;
Evgeny Nikolaevich Bespalov, Nikolaev, SU;
Igor Vladimirovich Prokopov, Pavlodar, SU;
Boris Stepanovich Povazhny, Pavlodar, SU;
Boris Alexeevich Smirnov, Pavlodar, SU;
Viktor Nikolaevich Vasiliev, Pavlodar, SU;
Salavat Ishanovich Turakbaev, Pavlodar, SU;
Askar Minliakhmedovich Kunaev, Alma-Ata, SU;
Turar Baltabaevich Tursunbaev, Alma-Ata, SU;
Viktor Dmitrievich Ponomarev, deceased, LATE OF Alma-Ata, SU;
Other;
Abstract
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.