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| Study of Vanadium Extraction from Vanadium-bearing Alkaline Solution |
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Received:April 18, 2014
Revised:April 22, 2014
Accepted:April 24, 2014
Published Online:September 19, 2014
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| DOI：10.3969/j.issn.1007-7545.2014.10.011 |
| KeyWord:stone coal; vanadium; extraction; quaternary ammonium salt |
| Author | Institution |
| Qi Zhaoshu |
中南大学 冶金与环境学院 长沙 |
| LI Qing-gang |
中南大学 冶金与环境学院 长沙 |
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| Abstract: |
| Vanadium was extracted from vanadium-bearing alkaline solution with carbonate type quaternary ammonium salt as extractant. The effects of concentration of extractant and modifying agent, temperature, time, O/A and pH value on vanadium extracting rate were investigated. The results show that vanadium extraction mechanism from alkaline solution by carbonate-type N263 is negative ion exchange. The optimum extraction conditions include temperature of 20~40 ℃, time of 1 min, and O/A=1/2. The optimum concentration of N263 is 0.091 9 mol/L only with extraction rate and phase splitting time into consideration. |
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