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The Anodic Behavior of Electro-deoxidation of Titanium Dioxide in Calcium Chloride Molten Salt

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Characterization of Minerals, Metals, and Materials 2018 (TMS 2018)

Part of the book series: The Minerals, Metals & Materials Series ((MMMS))

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Abstract

Since Fray-Farthing-Chen (FFC) Cambridge process was proposed in 2000 for electrochemical extraction of titanium from titanium oxide, a great quantity of research has been carried out to investigate the mechanism of the electro-reduction of the process. Results show that the intermediate products of perovskite phases are inevitable during the electro-deoxidation process. In this paper, a new perspective focus on the anodic behavior was applied. The behavior of the graphite anode with different times has been investigated. Although the main anodic process in the electrolysis is the oxygen evolution by means of the CO2. The interphases of calcium species appeared on the cathode are closely related with chlorine ions in the molten CaCl2. In addition, the released CO2 from the anode is related with the formation of CaCO3 which floated on the surface of the molten salt.

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Acknowledgements

The authors acknowledge gratefully the financial support from the National Natural Science Foundation of China (Grant No. 51674054 and Grant No. 51234010).

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Authors and Affiliations

  1. School of Materials Science and Engineering, Chongqing University, Chongqing, 400044, China

    Pingsheng Lai, Meilong Hu, Leizhang Gao, Zhengfeng Qu & Chenguang Bai

Authors
  1. Pingsheng Lai
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  2. Meilong Hu
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  3. Leizhang Gao
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  4. Zhengfeng Qu
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  5. Chenguang Bai
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Corresponding author

Correspondence to Meilong Hu .

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Editors and Affiliations

  1. Michigan Technological University, Houghton, Michigan, USA

    Bowen Li

  2. CanmetMATERIALS, Hamilton, Ontario, Canada

    Jian Li

  3. Al-Isra University, Amman, Jordan

    Shadia Ikhmayies

  4. ArcelorMittal Global R&D, East Chicago, Indiana, USA

    Mingming Zhang

  5. Middle East Technical University, Ankara, Turkey

    Yunus Eren Kalay

  6. Mail Stop G770, Los Alamos National Laboratory, Los Alamos, New Mexico, USA

    John S. Carpenter

  7. Michigan Technological University, Houghton, Michigan, USA

    Jiann-Yang Hwang

  8. Military Institute of Engineering, Rio de Janeiro, Brazil

    Sergio Neves Monteiro

  9. Politecnico di Torino, Turin, Italy

    Donato Firrao

  10. UNSW Canberra, Campbell, ACT, Australia

    Andrew Brown

  11. Chongqing University, Chongqing, China

    Chenguang Bai

  12. Central South University, Changsha, China

    Zhiwei Peng

  13. UNSW Canberra, Campbell, Aust Capital Terr, Australia

    Juan P. Escobedo-Diaz

  14. Naval Research Laboratory, Washington, District of Columbia, USA

    Ramasis Goswami

  15. Korea Railroad Research Institute, Uiwang, Korea (Republic of)

    Jeongguk Kim

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Lai, P., Hu, M., Gao, L., Qu, Z., Bai, C. (2018). The Anodic Behavior of Electro-deoxidation of Titanium Dioxide in Calcium Chloride Molten Salt. In: Li, B., et al. Characterization of Minerals, Metals, and Materials 2018 . TMS 2018. The Minerals, Metals & Materials Series. Springer, Cham. https://doi.org/10.1007/978-3-319-72484-3_43

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