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| Extraction Performance of Gallium from Sulfuric Acid by Different Organic Phosphate Extractants |
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Received:December 21, 2016
Revised:December 23, 2016
Accepted:December 26, 2016
Published Online:March 21, 2017
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| DOI：doi：10.3969/j.issn.1007-7545.2017.04.009 |
| KeyWord:phosphate extraction agent; sulfuric acid system; gallium extraction performance; comparative study |
| Author | Institution |
| ZHANG Kui-fang |
广东省稀有金属研究所 |
| LIU Zhi-qiang |
广东省稀有金属研究所 |
| CAO Hong-yang |
广东省稀有金属研究所 |
| ZHU Wei |
广东省稀有金属研究所 |
| GAO Yuan |
广东省稀有金属研究所 |
| JIN Ming-ya |
广东省稀有金属研究所 |
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| Abstract: |
| Extraction performance of gallium by P204, P507, and P535 in sulfuric acid system was compared. The results show that P204 and P507 can only extract gallium with low H2SO4 concentration, and extraction rate of gallium significantly drops upon H2SO4 concentration exceeding 10 g/L. P535 can achieve direct extraction of gallium from high acidity sulfuric acid system (>20 g/L) and efficient separation of Ga from Zn, Cu, and Ge. Separation coefficient of βGa/Zn, βGa/Cu and βGa/Ge by P535 is 4 573, 1 663, and 651 respectively. P535 is expected to be applied to extract gallium from high acid leaching lixivium of zinc hydrometallurgical slag. |
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