Thermodynamic analysis on the direct preparation of metallic vanadium from NaVO<sub>3</sub> by molten salt electrolysis

WeiWeng; Mingyong Wang; Xuzhong Gong; ZhiWang; Zhancheng Guo

doi:10.1016/j.cjche.2016.01.006

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Thermodynamic analysis on the direct preparation of metallic vanadium from NaVO₃ by molten salt electrolysis

第25届中国过程控制会议专栏 | Updated：2026-01-06

- Thermodynamic analysis on the direct preparation of metallic vanadium from NaVO₃ by molten salt electrolysis
- Chinese Journal of Chemical Engineering Vol. 24, Issue 5, Pages: 671-676(2016)
- Affiliations：
  
  2 National Engineering Laboratory for Hydrometallurgical Cleaner Production Technology, Key Laboratory of Green Process and Engineering, Institute of Process Engineering, Chinese Academy of Sciences,Beijing,China,100190
- Author bio：
- Funds：
- DOI：10.1016/j.cjche.2016.01.006
  CLC：
- Published：2016
- Accepted：
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by molten salt electrolysis[J]. Chinese Journal of Chemical Engineering, 2016, 24(5): 671-676.
DOI：

by molten salt electrolysis[J]. Chinese Journal of Chemical Engineering, 2016, 24(5): 671-676. DOI： 10.1016/j.cjche.2016.01.006.

摘要

Abstract

A novel and environmentally friendly route to directly prepare metallic vanadium from NaVO

by molten salt electrolysis is proposed. The feasibility about the direct electro-reduction of NaVO

to metallic vanadium is analyzed based on the thermodynamic calculations and experimental verifications. The theoretical decomposition voltage of NaVO

to metallic vanadium is only 0.47 V at 800℃ and much lower than that of the alkali and alkali earth metal chloride salts. The value is slightly higher than that of low-valence vanadium oxides such as V

and VO. However

the low-valence vanadium oxides can be further electro-reduced to metallic vanadium thermodynamically. The thermodynamic analysis is verified by the experimental results. The direct preparation of metallic vanadium from NaVO

by molten salt electrolysis is feasible.

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Thermodynamic analysis on the direct preparation of metallic vanadium from NaVO3 by molten salt electrolysis

DOI：10.1016/j.cjche.2016.01.006

摘要

Abstract

关键词

Keywords

references

Thermodynamic analysis on the direct preparation of metallic vanadium from NaVO₃ by molten salt electrolysis