ELECTROLYTIC RECOVERY OF GALLIUM OR GALLIUM AND VANADIUM IN ALUMINA PRODUCTION

A process for electrolytically recovering gallium or gallium and vanadium from alkaline liquors of the alumina production comprises conducting electrolysis on solid electrodes with a cathode current density between 200 and 1000 A/m2, at a voltage between 3.4 and 4.5 V, and at 28 to 37 C in the prese...

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Hauptverfasser:	STARKOV, EVGENY N, GRIGORIEVA, ANASTASIA D, OVSYANNIKOV, VLADIMIR I, DAVYDOV, IVAN V, LAVRENCHUK, VLADIMIR N, ZLOKAZOVA, TATYANA M, FOMIN, EDUARD S, RUBINSHTEIN, GEORGY M, MOSKOV, RUSLAN N, EREMEEV, ARNOLD F, DIEV, VALERY N, YATSENKO, SERGEI P
Format:	Patent
Sprache:	eng ; fre
Schlagworte:	APPARATUS THEREFOR CHEMISTRY CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION ORPROCESSING OF GOODS ELECTROLYTIC OR ELECTROPHORETIC PROCESSES GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS METALLURGY PROCESSES FOR THE ELECTROLYTIC PRODUCTION, RECOVERY ORREFINING OF METALS TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINSTCLIMATE CHANGE
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Beschreibung
Zusammenfassung:	A process for electrolytically recovering gallium or gallium and vanadium from alkaline liquors of the alumina production comprises conducting electrolysis on solid electrodes with a cathode current density between 200 and 1000 A/m2, at a voltage between 3.4 and 4.5 V, and at 28 to 37 C in the presence of a metal previously introduced to starting alkaline liquors, which forms when electrolytically reduced together with gallium an alloy therewith which is not passivated under the electrolysis conditions, the concentration of said metal being between 0.15 and 5.0 g/l with a gallium concentration between 0.15 and 0.5 g/l. The process for electrolytically recovering gallium or gallium and vanadium concentrate from alkaline liquors may find application in the alumina production.