Experimental study on vanadium extraction from alkaline vanadium-containing powder

Wu Zhenxiu

doi:10.7513/j.issn.1004-7638.2021.05.005

Volume 42 Issue 5

Oct. 2021

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Wu Zhenxiu. Experimental study on vanadium extraction from alkaline vanadium-containing powder[J]. IRON STEEL VANADIUM TITANIUM, 2021, 42(5): 30-33. doi: 10.7513/j.issn.1004-7638.2021.05.005

Citation:

Wu Zhenxiu. Experimental study on vanadium extraction from alkaline vanadium-containing powder[J]. IRON STEEL VANADIUM TITANIUM, 2021, 42(5): 30-33. doi: 10.7513/j.issn.1004-7638.2021.05.005

Wu Zhenxiu. Experimental study on vanadium extraction from alkaline vanadium-containing powder[J]. IRON STEEL VANADIUM TITANIUM, 2021, 42(5): 30-33. doi: 10.7513/j.issn.1004-7638.2021.05.005

Citation:

Wu Zhenxiu. Experimental study on vanadium extraction from alkaline vanadium-containing powder[J]. IRON STEEL VANADIUM TITANIUM, 2021, 42(5): 30-33. doi: 10.7513/j.issn.1004-7638.2021.05.005

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Experimental study on vanadium extraction from alkaline vanadium-containing powder

doi: 10.7513/j.issn.1004-7638.2021.05.005

Wu Zhenxiu

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

Received Date: 2021-06-21
Publish Date: 2021-10-30

Abstract

Abstract

In this study, the alkaline powder is mainly sodium sulfate, containing 3.4% V₂O₅, which can not be dissolved in acid or alkali. If vanadium is directly roasted and then extracted, vanadium and a large amount of sodium sulfate will enter the solution and form a low vanadium solution with low vanadium and high sodium, and the subsequent recovery of vanadium from the solution is more difficult. With the alkaline low vanadium powder used as the raw material for extracting vanadium, 87.94% vanadium can be separated into the filter residue after water dissolution and filtration, and the filter residue contains V₂O₅ 34%. Exploratory tests on vanadium extraction from vanadium-rich filter residue by direct acid dissolution, alkali dissolution and sodium roasting were carried out. The sodium roasting-water leaching process was selected for vanadium extraction technology research on the filter residue. The experimental results showed that the extraction rate of vanadium could reach 97.96% and the total yield of vanadium could reach 86.15%, according to the dry weight of 100 g with 30 g sodium carbonate, calcination at 780 ℃ for 90 min and water leaching of the roasted residue. The study of this technology provides a new approach for extracting vanadium from this kind of alkaline low vanadium powder.
- vanadium extraction,
- alkaline vanadium-containing powder,
- water solution,
- roasting-water leaching process,
- vanadium yield

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References(10)

References

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