Solubility and Dissolution Mechanism of V<sub>2</sub>O<sub>5</sub> in NaCl-KCl-NaF Molten Salt System

Wu MingYu; Hu Kai; Xu MingYue; Wang Cong; Li YunGang

doi:10.7513/j.issn.1004-7638.2016.03.005

Volume 37 Issue 3

Jun. 2016

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Wu MingYu, Hu Kai, Xu MingYue, Wang Cong, Li YunGang. Solubility and Dissolution Mechanism of V2O5 in NaCl-KCl-NaF Molten Salt System[J]. IRON STEEL VANADIUM TITANIUM, 2016, 37(3): 24-29. doi: 10.7513/j.issn.1004-7638.2016.03.005

Citation:

Wu MingYu, Hu Kai, Xu MingYue, Wang Cong, Li YunGang. Solubility and Dissolution Mechanism of V₂O₅ in NaCl-KCl-NaF Molten Salt System[J]. IRON STEEL VANADIUM TITANIUM, 2016, 37(3): 24-29. doi: 10.7513/j.issn.1004-7638.2016.03.005

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Solubility and Dissolution Mechanism of V₂O₅ in NaCl-KCl-NaF Molten Salt System

doi: 10.7513/j.issn.1004-7638.2016.03.005

College of Metallurgy and Energy, North China University of Science and Technology, Tangshan 063009, Hebei, China

Received Date: 2016-01-14
Available Online: 2023-12-04
Publish Date: 2016-06-28

Abstract

Abstract

The influence of temperature and molten salt component on the solubility of V₂O₅ in Na Cl-KCl-NaF molten salt system was researched by isothermal saturation method.The possible reactions between the materials in the molten salt system were calculated by using the thermodynamic software Factsage7.0,and the dissolution mechanism of V₂O₅ was finally determined by combination with the X-ray diffraction analysis of the rapid cooling samples of molten salt.The results show that V₂O₅ preferentially reacts with NaF in the molten salt system by the following dissolving mechanism of 4V₂O₅+ 6NaF=6NaVO₃+2VF₃+O₂.The solubility of V₂O₅ increases with increase in temperature and NaF content in the molten salt system.
- V₂O₅,
- NaCl-KCl-NaF,
- solubility,
- dissolving mechanism