New Cathodes in Aluminum Reduction Cells

  • Feng Naixiang
  • Tian Yingfu
  • Peng Jianping
  • Wang Yaowu
  • Qi Xiquan
  • Tu Ganfeng

Abstract

Three aluminum electrolysis cells with a novel uneven cathode bottom are being operated successfully in Chongqing Tiantai Aluminum Industry Co., Ltd., China. More and more aluminum smelters are using this type of cathode. In the past year the three 168 kA cells have produced steadily at low cell voltages of 3.70 V to 3.75 V, and the current efficiency (CE) has been improved by at least 1 % in comparison with 127 traditional model cathode cells in the same potline. The technical characteristics of the cells are described in this paper.

Keywords

Aluminum electrolysis New cathodes Cell voltages Technical characteristics 

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References

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    Feng Naixiang, Qi Xiquan, Peng Jianping. “Electrolysis test of 1.35 kA drained cathode reduction cell with TiB2-coated cathode”. Nonferrous Metals Society of China, (12) (2005), 2047–2053.Google Scholar
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    Peng Jianping, Feng Naixiang, Jiang Yanli, et al. “Test of drained aluminum electrolysis cell with TiB2/G graphitized cathode at high current density”. Nonferrous Metals Society of China, (4) 2008, 738–744.Google Scholar

Copyright information

© The Minerals, Metals & Materials Society 2016

Authors and Affiliations

  • Feng Naixiang
    • 1
  • Tian Yingfu
    • 2
  • Peng Jianping
    • 1
  • Wang Yaowu
    • 1
  • Qi Xiquan
    • 3
  • Tu Ganfeng
    • 3
  1. 1.School of Materials and MetallurgyNortheastern UniversityShenyangChina
  2. 2.Chongqing Tiantai Aluminum Industry CO., Ltd.ChongqingChina
  3. 3.Northeastern University Engineering & Research Institute Co. LtdShenyangChina

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