Study on the effect of molten salt electro-deoxidation on the preparation of titanium metal

Xin Xuesong; Zhang Qiang; Zhang Shanshan; Zhang Min

doi:10.7513/j.issn.1004-7638.2021.06.007

Volume 42 Issue 6

Dec. 2021

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Xin Xuesong, Zhang Qiang, Zhang Shanshan, Zhang Min. Study on the effect of molten salt electro-deoxidation on the preparation of titanium metal[J]. IRON STEEL VANADIUM TITANIUM, 2021, 42(6): 59-65. doi: 10.7513/j.issn.1004-7638.2021.06.007

Citation:

Xin Xuesong, Zhang Qiang, Zhang Shanshan, Zhang Min. Study on the effect of molten salt electro-deoxidation on the preparation of titanium metal[J]. IRON STEEL VANADIUM TITANIUM, 2021, 42(6): 59-65. doi: 10.7513/j.issn.1004-7638.2021.06.007

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Study on the effect of molten salt electro-deoxidation on the preparation of titanium metal

doi: 10.7513/j.issn.1004-7638.2021.06.007

Xin Xuesong^1
,,
Zhang Qiang^{1, 2, 3
,
,},
Zhang Shanshan¹,
Zhang Min⁴

1.
College of Mechanical Engineering, Shangqiu Institute of Technology, Shangqiu 476000, Henan, China
2.
College of Material and Metallurgy, Guizhou University, Guiyang 550025, Guizhou, China
3.
Guizhou Province Key Laboratory of Metallurgical Engineering and Process Energy Saving, Guiyang 550025, Guizhou, China
4.
Tianjin Advanced Equipment Research Institute of Tsinghua University Luoyang Advanced Manufacturing Industry Research and Development Base, Luoyang 471000, Henan, China

Received Date: 2021-08-21
Accepted Date: 2021-11-19
Publish Date: 2021-12-31

Abstract

Abstract

Titanium metal was prepared by electrolysis of high titanium slag in CaCl₂ molten salt under a high-purity argon atmosphere. The relationship between forming pressure and porosity of cathode sheet as well as the influence on the electrolysis process were studied. The phases and microstructures of the cathode sheet and that after electrolysis were characterized by XRD and SEM. The results showed that the forming pressure had a direct influence on the porosity of the cathode sheet, which decreased with the increase of the forming pressure. The porosity of the cathode sheet directly affected the electrode deoxidation process, and an appropriate porosity was beneficial to the formation of intermediate product CaTiO₃ and the increase of the electroreduction rate. The porosity of the cathode pressed by 4 MPa is 34.79% when sintered at 1 050 ℃ for 2 h, and the oxygen content of the product is reduced to 1.75% and titanium content is 95.72% when electrolyzed for 12 h, which shows a better electrochemical performance of the cathode sheet.
- titanium metal,
- high titanium slag,
- molten salt electro-deoxidation method,
- forming pressure,
- cathode structure,
- porosity,
- electrochemical performance

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References(20)

References

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