Iron-based anode for obtaining aluminum by the electrolysis of melts

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United States of America Patent

PATENT NO 10711359
APP PUB NO 20160194772A1
SERIAL NO

14910483

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Abstract

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The invention concerns non-ferrous metallurgy, particularly an anode for electrolytically obtaining aluminum by the electrolysis of fluoride melts. The anode for obtaining aluminum by means of the electrolysis of melts at a temperature of less than 930° C. consists of a base executed of an alloy containing 65-96%wt of iron, less than 35%wt of copper, less than 20%wt of nickel, and one or several additives from molybdenum, manganese, titanium, tantalum, tungsten, vanadium, zirconium, niobium, chromium, aluminum (less than 1%wt) cobalt, cerium, yttrium, silicon, and carbon totaling less than 5%, and a protective oxide layer comprising iron oxides and complex oxides of iron, copper, and nickel. The protective oxide layer on the anode surface is obtained by preliminary oxidation in air at a temperature of 850-1050° C. or subsequently in the electrolysis process by oxidation with oxygen evolving at the anode.

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Patent Owner(s)

Patent OwnerAddress
UNITED COMPANY RUSAL ENGINEERING AND TECHNOLOGY CENTRE LLCUL POGRANICHNIKOV 37 STR 1 G KRASNOYARSK 66011

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Inventor(s)

Inventor Name Address # of filed Patents Total Citations
Gusev, Aleksandr Olegovich g. Krasnoyarsk, RU 18 10
Simakov, Dmitriy Aleksandrovich g. Krasnoyarsk, RU 8 4

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