Study on vanadium precipitation by tetraethylammonium bromide at room temperature

ZHANG Lei; CHEN Yan; WU Jinshu; LIU Shiyuan; GAO Leizhang; YU Bin; WANG Ning

doi:10.7513/j.issn.1004-7638.2025.06.007

Volume 46 Issue 6

Dec. 2025

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ZHANG Lei, CHEN Yan, WU Jinshu, LIU Shiyuan, GAO Leizhang, YU Bin, WANG Ning. Study on vanadium precipitation by tetraethylammonium bromide at room temperature[J]. IRON STEEL VANADIUM TITANIUM, 2025, 46(6): 66-71. doi: 10.7513/j.issn.1004-7638.2025.06.007

Citation:

ZHANG Lei, CHEN Yan, WU Jinshu, LIU Shiyuan, GAO Leizhang, YU Bin, WANG Ning. Study on vanadium precipitation by tetraethylammonium bromide at room temperature[J]. IRON STEEL VANADIUM TITANIUM, 2025, 46(6): 66-71. doi: 10.7513/j.issn.1004-7638.2025.06.007

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Study on vanadium precipitation by tetraethylammonium bromide at room temperature

doi: 10.7513/j.issn.1004-7638.2025.06.007

Pangang Group Research Institute Co., Ltd., State Key Laboratory of Vanadium and Titanium Resources Comprehensive Utilization, Panzhihua 617000, Sichuan, China

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Received Date: 2025-04-10
Accepted Date: 2025-05-16
Rev Recd Date: 2025-05-14

Available Online: 2025-12-31

Publish Date: 2025-12-31

Abstract

Abstract

A study of vanadium precipitation at room temperature from vanadium leaching solution obtained from calcination roasting and acid leaching was carried out using tetraethylammonium bromide (TEAB) as the precipitation agent. The effects of the pH of the reaction solution, the dosage of the vanadium precipitation agent, and the precipitation time on the vanadium precipitation rate and the impurity content in the precipitate were studied. The optimal experimental conditions were obtained as pH = 2.4, the dosage of vanadium precipitation agent, n(TEAB): n(V) = 0.5, and the vanadium precipitation time of 0.5 h. Under these conditions, the vanadium precipitation rate was 97.1%, and the contents of impurities Mn, Si, and P in the precipitate were controlled at a relatively low level. The precipitate obtained by vanadium precipitation with TEAB at room temperature was calcined at 550 ℃ for 3 h, producing V₂O₅ product that meets the industry standards.
- tetraethylammonium bromide,
- vanadium precipitation,
- room temperature,
- vanadium leaching solution

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References(15)

References

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