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Preparation of Titanium Powders from TiO2 by Calcium Vapor Reduction

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Preparation of Ti powders from TiO2 by calcium vapor reduction was investigated by x-ray diffraction (XRD), scanning electron microscope (SEM), element analysis instrument, inert gas fusion–infrared absorption spectroscopy, and ethylene diamine tetraacetic acid (EDTA) complex formation titration. The experimental results indicate that the reduction reaction occurs very rapidly when the mass ratio of CaCl2 to TiO2 is 1:2 from 0 min to 30 min, and the titanium suboxides were further reduced from 30 min to 480 min at 1000°C. The content of CaCl2 influences the reduction products and the reduction rate obviously, and the suitable mass ratio of CaCl2 to TiO2 is 1:2 under these experimental conditions. Ti powders with oxygen content of 1000 ppm, nitrogen content of 120 ppm, and chlorine content of 80 ppm were obtained at 1000°C for 360 min.

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Acknowledgements

This work was supported by Natural Science Foundation of China (no. 51004058) and Natural Science Foundation of Yunnan Province, China (no. 2011FB039).

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Authors and Affiliations

  1. National Engineering Laboratory for Vacuum Metallurgy, Kunming, 650093, People’s Republic of China

    Jingang Jia, Baoqiang Xu, Bin Yang, Dongsheng Wang & Dachun Liu

  2. Key Laboratory for Nonferrous Metals Vacuum Metallurgy of Yunnan Province, Kunming, 650093, People’s Republic of China

    Jingang Jia, Baoqiang Xu, Bin Yang, Dongsheng Wang & Dachun Liu

  3. Faculty of Metallurgy and Energy Engineering, Kunming University of Science and Technology, Kunming, 650093, People’s Republic of China

    Jingang Jia, Baoqiang Xu, Bin Yang, Dongsheng Wang & Dachun Liu

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  1. Jingang Jia
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  2. Baoqiang Xu
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  3. Bin Yang
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  4. Dongsheng Wang
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  5. Dachun Liu
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Correspondence to Baoqiang Xu.

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Jia, J., Xu, B., Yang, B. et al. Preparation of Titanium Powders from TiO2 by Calcium Vapor Reduction. JOM 65, 630–635 (2013). https://doi.org/10.1007/s11837-013-0583-6

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