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Effect of TiB2 Coating on Evolution of Cathode Lining during the Process of Primary Aluminum Production

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Abstract

A modified Rapoport apparatus for sodium expansion was used to determine the sodium expansion of TiB2-coated carbon cathode samples with different TiB2 contents. It was shown that TiB2 coating played a role in slowing the sodium penetration rate to the carbon cathode lining, which resulted in reduced swelling and cracking of carbon cathode block and then extended the life of aluminum reduction cells. The TiB2 coating was applied to the carbon cathode in 160 kA prebake cells, and the characteristic of evolution of carbon cathode was observed.

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The authors appreciate the financial support from Science Fund Project No. GUIKEJI0639032, Guangxi Province, China.

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Authors and Affiliations

  1. School of Chemistry and Chemical Engineering, Guangxi Normal University, Guilin, 540041, P.R. China

    Qing-Yu Li (Professor), Jian-Hong Yang (Professor) & Hong-Qiang Wang (Associate Professor)

  2. School of Metallurgical Science and Engineering, Central South University, Changsha, 410083, P.R. China

    Jie Li (Professor) & Yan-Qing Lai (Professor)

  3. Aluminum Corporation of China Limited, Guangxi Branch, Pingguo, 531400, P.R. China

    Yong-Gang Liu (Engineer)

Authors
  1. Qing-Yu Li
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  2. Jie Li
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  3. Jian-Hong Yang
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  4. Yan-Qing Lai
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  5. Hong-Qiang Wang
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  6. Yong-Gang Liu
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Corresponding author

Correspondence to Hong-Qiang Wang.

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Manuscript submitted February 7, 2007.

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Li, QY., Li, J., Yang, JH. et al. Effect of TiB2 Coating on Evolution of Cathode Lining during the Process of Primary Aluminum Production. Metall Mater Trans A 38, 2358–2361 (2007). https://doi.org/10.1007/s11661-007-9294-3

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  • DOI: https://doi.org/10.1007/s11661-007-9294-3

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