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| Separation of Vanadium and Iron in Stone Coal Acidic Leaching Solution with P507-N235 Mixed Extractant |
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Received:April 28, 2016
Revised:May 03, 2016
Accepted:May 05, 2016
Published Online:September 20, 2016
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| DOI：doi：10.3969/j.issn.1007-7545.2016.10.010 |
| KeyWord:vanadium; P507; N235; extraction; separation of vanadium and iron |
| Author | Institution |
| xiong pu |
武汉理工大学 资源与环境工程学院 |
| zhang yimin |
武汉理工大学 资源与环境工程学院 |
| huang jing |
武汉科技大学 资源与环境工程学院 |
| bao shenxu |
武汉理工大学 资源与环境工程学院 |
| yang xiao |
武汉理工大学 资源与环境工程学院 |
| shen chun |
武汉理工大学 资源与环境工程学院 |
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| Abstract: |
| The process to separate vanadium and iron in stone coal acidic leaching solution with P507-N235 mixed extractant was studied. Effects of concentration of N235/P507, initial pH value, extraction time, and phase ratio (A/O) on extraction efficiency and separation performance of vanadium and iron were investigated. The results show that after four-stage extraction, extraction rate of vanadium and iron is 98.36% and 5.78% respectively under the optimum conditions including 0.4 mol/L P507, 0.8 mol/L N235, initial pH value of 1.7, extraction time of 5 min, and A/O=5/1. Compared with P204 system and P507 system, P507-N235 system has higher vanadium extraction efficiency and better separation performance of vanadium and iron. |
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