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铁道科学与工程学报

JOURNAL OF RAILWAY SCIENCE AND ENGINEERING

Vol. 13    No. 4    August 2003

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Pilot study of mechanism of property-modified anode in
aluminum electrolysis
XIAO Jin(肖 劲), YANG Jian-hong(杨建红),
HU Guo-rong(胡国荣), LAI Yan-qing(赖延清),
WANG Xian-qian(王先黔), LIU Ye-xiang(刘业翔)

College of Metallurgy Science and Engineering,
Central South University, Changsha 410083, China

Abstract:On the basis of serial laboratory research and industrial test, the mechanism of saving energy and reducing carbon consumption of property-modified prebaked anode in aluminum electrolysis was discussed. It is considered that the anodic over voltage is affected by the concentration of carbon monoxide surrounding anode. The property-modified prebaked anode can restrain the production of carbon monoxide. The reason of reducing carbon consumption was also analyzed, the result shows that besides physical action, chemical action also exists in the process where additives change the reaction rate of anodes.

 

Key words: aluminum electrolysis;prebaked anode;additive

ISSN 1672-7029
CN 43-1423/U

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