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| Solvent Extraction of Vanadium from Waste Vanadium Catalyst with P204 |
| Received:August 13, 2015 Revised:August 17, 2015 |
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| DOI：10.3969/j.issn.1007-7545.2016.01.013 |
| KeyWord:P204; waste vanadium catalyst; solvent extraction; vanadium |
| Author | Institution |
| KANG Li-wu |
湖北工程职业学院 |
| HU Jiang-ping |
湖北工程职业学院 |
| LI Qiang |
北京矿冶研究总院 |
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| Abstract: |
| Vanadium was extracted from acid reduction leaching solution of waste vanadium catalyst in P204 TBP sulfonated kerosene system. The effects of phase ratio (O/A), P204 concentration and initial pH value of extraction solution on vanadium extraction were investigated. The results show that vanadium extraction rate is 98.73% under the optimum conditions including extraction system of 20%P204 10%TBP 70% sulfonated kerosene, O/A=2, initial pH value of feeding solution of 2.2, and extracting duration of 5 min. Vanadium stripping rate is 89.91% with 1.5 mol/L sulfuric acid as stripping agent for 6 min. The final product of V2O5 could meet standard of GB 3283-1987 Metallurgical Grade 99 V2O5. |
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