| Extraction of Ce~(4+) from Tervalent Lanthanide with Immobilized Interface in a Microporous Hollow Fiber |
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| 作者姓名： | 王玉洁 张淑敏 李德谦 |
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| 作者单位： | 中科院长春应用化学研究所，东北师范大学化学系 |
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| 摘 要： | 中空纤维膜（ＭＨＦ）法研究了Ｃｅ４＋和三价稀土的溶剂萃取．结果表明Ｃｅ４＋的传质系数是Ｃｅ３＋和Ｌａ３＋的１０倍以上．Ｃｅ４＋的传质速度受水相临界层中扩散速度控制，ＲＥ３＋的传质速度受膜内扩散控制．Ｃｅ４＋能够从三价稀土中有效地分离．
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| 关 键 词： | 铈 稀土 萃取 中空纤维膜 伯胺N1923 |
Extraction of Ce~(4+) from Tervalent Lanthanide with Immobilized Interface in a Microporous Hollow Fiber |
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| $ Wang Yujie,Zhang Shumin,Li Deqian.Extraction of Ce~(4+) from Tervalent Lanthanide with Immobilized Interface in a Microporous Hollow Fiber[J].Journal of Molecular Science,1998(2). |
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| Authors: | $ Wang Yujie Zhang Shumin Li Deqian |
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| Institution: | $ Wang Yujie 1 Zhang Shumin 2 Li Deqian 1 |
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| Abstract: | The solvent extraction of Ce 4+ and tervalent lanthanide was studied by the method of microporous hollow fiber(MHF) extraction. The results showed that the mass transfer coefficient of Ce 4+ was larger about 10 times than these of Ce 3+ and La 3+ . The mass transfer rate of Ce 4+ was controlled by its dispersion in the critical layer of the water phase. That of RE 3+ was controlled by its dispersion in the membrane. Ce 4+ could be effectively separated from the rare earth solution. |
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| Keywords: | cerium rare earths extraction hollow fiber membrane amine N1923 |
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