本文采用自制聚偏氟乙烯中空纤维膜器,在氨化HEH/EHP煤油体系中对钕、钐的萃取及传质性能进行了研究.结果表明,无论萃取剂氨化与否,膜器中的萃取反应均可视为准一级反应;探讨了氨化HEH/EHP对膜阻的影响及其在膜萃取过程和同级萃取反萃中,稀土离子、氢离子及氨离子的交换规律.
参考文献
| [1] | Sato Y;Knodo K;Nakashio F .A novel membrane extractor using hollow fibers for separation and enrichment of mental[J].Journal of Chemical Engineering of Japan,1990,23(01):23. |
| [2] | Prasad R,Sirkar .Hollow fiber solvent extraction:performances and design[J].Journal of Membrane Science,1990,50:153. |
| [3] | Li De-qian;Wang Xiong;Lin Dao-zhi.Extraction and separation of rare earth element scandium and thoraum with 2-ethylhexyl phosphonic acid mono-2-ethylhexyl ester[M].ISEC′80,Liege,Belgium,1980:80. |
| [4] | 李德谦;王中怀;马根祥 .离子型稀土矿分离新工艺研究进展[J].中国稀土学报,1994,12:401. |
| [5] | Li De-qian;Wang Zhong-huai;Song Wen-zhong.Recommend separation process for ion absorbed rare earth minerals[A].London:Chapman and Hall,1994:627. |
| [6] | Kulota F;Goto M;Nakashio F .Extraction kinetics of rare earth metals with 2-ethylhexyl phosphonic acid mono-2-ethylhexyl ester using hollow fiber membrane extractor[J].Separation Science and Technology,1995,30(05):777. |
| [7] | Goto M;Kulota F;Miyata T .Separation of yttrium in a hollow fiber membrane[J].Journal of Membrane Science,1992,74:215. |
| [8] | 戴猷元 .膜萃取过程及其进展[J].膜科学与技术,1992,12(01):1. |
| [9] | 张凤君,李德谦,吴庸烈,成永杰.HEH/EHP在中空纤维膜器中萃取钕、钐及传质研究[J].高等学校化学学报,1998(04):514-516. |
| [10] | 乐善堂;李德谦 .HEH[EHP]从H2SO4介质中萃取Er(Ⅲ)的动力学和机理[J].应用化学,1990,7(03):1. |
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