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| Mechanism of Vanadium Extraction with N235 in H2SO4 System |
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Received:May 03, 2015
Revised:May 05, 2015
Accepted:May 11, 2015
Published Online:November 18, 2015
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| DOI：doi：10.3969/j.issn.1007-7545.2015.12.009 |
| KeyWord:vanadium; extraction mechanism; N235 |
| Author | Institution |
| Cao Wei |
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 |
| 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 |
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| Abstract: |
| Mechanism of vanadium extraction with N235 in H2SO4 system was investigated by saturation volumetric method and slop method. The results show that mole ratio of vanadium to N235 in organic phase is about 2.5 with extraction complex of [R3NH]4[H2V10O28]. Apparent equilibrium constant of extraction reaction is 195.434 L?mol-1?s-1 with ΔH=-10.683 kJ/mol, ΔG=-13.076 kJ/mol, and ΔS=8.023 J/(mol?K). Increasing temperature goes against vanadium extraction. |
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