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| solvent extraction; Versatic10; calcium; magnesium; cobalt; nickel |
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Received:October 01, 2015
Revised:October 08, 2015
Accepted:October 09, 2015
Published Online:February 23, 2016
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| DOI：10.3969/j.issn.1007-7545.2016.03.001 |
| KeyWord:solvent extraction; Versatic 10; cobalt; nickel |
| Author | Institution |
| GUAN Qing-jun |
中南大学 资源加工与生物工程学院 |
| LUO Peng-hui |
茂盛矿业赞比亚有限公司 |
| GUO Liang |
茂盛矿业赞比亚有限公司 |
| SUN Wei |
中南大学 资源加工与生物工程学院 |
| Yin Zhigang |
中南大学 资源加工与生物工程学院 |
| ZOU Xing |
北京科技大学 |
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| Abstract: |
| Nickel(Ⅱ) and cobalt(Ⅱ) were simultaneously extracted from magnesium and calcium synthetic sulphate solution by carboxylic extractant Versatic10. The optimum extraction conditions include temperature of 25 ℃, oscillation intensity of 200 r/min, oscillation duration of 4 min, initial pH of 2.5, O/A=1/3, and saponification rate of 60%. After washing twice with deionized water at pH 5.70 and O/A=1/1, the co-extraction rates of calcium and magnesium are both 0.5% below. The stripping rates of nickel and cobalt are both 99% above by 2 mol/L sulfuric acid and O/A=1/1. |
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