Electrolytic cell for producing primary aluminum by using inert anode

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United States of America Patent

PATENT NO 9551078
APP PUB NO 20120318667A1
SERIAL NO

13575952

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Abstract

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An electrolytic cell for producing primary aluminum by using inert anodes is disclosed, in which an electrolyte system KF—NaF—AlF3 is used and the operating temperature of the cell is 700-850° C. The electrolytic cell comprises a cell shell, heat insulating refractory lining, a melting pot, a heat insulating cover, inert electrodes, electrode stems, anode bus-bars, cathode bus-bars, anode branching bus-bars, heat insulating plates, partitions between anodes and cathodes and a feeding device. The quality of the aluminum product obtained by using the electrolytic cell is not less than 99.7%. The cell is free from emission of carbon dioxide and perfluorinated compounds (PFCs), and hardly has consumption of electrodes, so the distances between anodes and cathodes can be kept stable. The cell is sealed and the volatilization of dust and fluorides can be prevented, and it is useful to recover oxygen gas.

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Patent Owner(s)

Patent OwnerAddress
ALUMINUM CORPORATION OF CHINA LIMITED100082 NO 62 NORTH MAIN STREET HAIDIAN DISTRICT BEIJING XIZHIMEN MUNICIPAL DISTRICT BEIJING CITY 100082

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Inventor(s)

Inventor Name Address # of filed Patents Total Citations
Cao, Peng Zhengshou, CN 62 123
Li, Wangxing Zhengshou, CN 1 2
Yang, Jianhong Zhengshou, CN 7 7

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