Study on the impurities removal process of calcified vanadium liquid by extraction process

WANG Jingpeng; YE Lu

doi:10.7513/j.issn.1004-7638.2025.01.003

Volume 46 Issue 1

Feb. 2025

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WANG Jingpeng, YE Lu. Study on the impurities removal process of calcified vanadium liquid by extraction process[J]. IRON STEEL VANADIUM TITANIUM, 2025, 46(1): 20-24, 33. doi: 10.7513/j.issn.1004-7638.2025.01.003

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WANG Jingpeng, YE Lu. Study on the impurities removal process of calcified vanadium liquid by extraction process[J]. IRON STEEL VANADIUM TITANIUM, 2025, 46(1): 20-24, 33. doi: 10.7513/j.issn.1004-7638.2025.01.003

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Study on the impurities removal process of calcified vanadium liquid by extraction process

doi: 10.7513/j.issn.1004-7638.2025.01.003

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

Received Date: 2024-06-27
Publish Date: 2025-02-27

Abstract

Abstract

The acidic calcified vanadium solution from Pangang Xichang Vanadium Plant was the research object in this study. In response to its characteristics of low acidity, high vanadium content, and difficulty in impurities removal, an extraction process was adopted to specifically remove Mn²⁺, Ca²⁺ and Fe³⁺ cations. The main influencing factors of the extraction process were investigated. And the optimal extraction parameters were determined. The organic phase ratio was 20% P204+80% 260# solvent oil with a saponification rate of 100% using ammonium hydroxide. The extractant ratio was O/A=2:1 at the initial pH of vanadium solution of 2.9 for 5 minutes. Under the above conditions, the single stage extraction rate of Mn and Ca reach over 98%. After extraction, the Mn content drops to around 0.05 g/L, Ca, Fe and Al leves are below 0.1 g/L in acidic vanadium solution.
- acid vanadium solution,
- vanadium extraction by calcification,
- impurities removal using extraction process,
- manganese removal

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References

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