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| Separation of Vanadium and Iron from Vanadium-bearing Acidic Solution by Anion Extraction |
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Received:November 20, 2020
Revised:December 11, 2020
Accepted:December 14, 2020
Published Online:March 24, 2021
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| DOI：doi：10.3969/j.issn.1007-7545.2021.04.007 |
| KeyWord:solvent extraction; vanadium; tertiary ammonium extractant; N235; separation |
| Author | Institution |
| SUN Ying |
东北大学 冶金学院 |
| ZHANG Ting-an |
东北大学 冶金学院 |
| LV Guo-zhi |
东北大学 冶金学院 |
| ZHANG Wei-guang |
东北大学 冶金学院 |
| MA Hai-lan |
东北大学 冶金学院 |
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| Abstract: |
| Vanadium-bearing acidic solution was extracted by tertiary amine extraction agent N235. Effects of extraction temperature, oscillation time, concentration of extractant, phase ratio (O/A), and pH value on separation of vanadium and iron were studied. The results show that mechanism of vanadium extraction from acidic solution by sulfuric acid N235 is anionic extraction. Single-stage extraction rate of vanadium can reach 84% under the conditions including temperature of 20-40 ℃, oscillation time of 3 min, concentration of N235 of 10%, O/A=1︰3, and pH value of solution of 1.45-1.6. |
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