| 以D2EHPA为载体的中空纤维丝液膜提取镧 |
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| 引用本文： | 孔闻东,严忠.以D2EHPA为载体的中空纤维丝液膜提取镧[J].膜科学与技术,1994,14(4):34-40. |
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| 作者姓名： | 孔闻东 严忠 |
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| 作者单位： | 东北师范大学化学系，东北师范大学化学系，东北师范大学化学系，东北师范大学化学系，日本大阪府立大学工学部化学工学科 长春 130024，长春 130024，长春 130024，长春 130024 |
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| 摘 要： | 本文以液膜法提取稀土获得基础知识为目的,以二(2-乙基己基)磷酸(D2EHPA)为载体,用中空纤维丝液膜提取稀土金属镧。测定了流量随时间的变化以及外水相的酸浓度、镧浓度、载体浓度对膜传质速度的影响,并利用传质速度方程式对实验结果给予定量解释。
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| 关 键 词： | 中空纤维丝液膜 镧 二(2-乙基己基)磷酸 |
Extraction of Lanthanum by Hollow-Fiber Membrane Using D2EHPA as carrier |
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| Sun Wendong,Yan Zhong,Wang Yujie,Bai Guangyue.Extraction of Lanthanum by Hollow-Fiber Membrane Using D2EHPA as carrier[J].Membrane Science and Technology,1994,14(4):34-40. |
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| Authors: | Sun Wendong Yan Zhong Wang Yujie Bai Guangyue |
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| Abstract: | The aim of the paper is to obtain the rudimentary knowledge about the extraction of rare earth by liquid membrane. The extraction of rare earth lanthanum using hollow-fiber membrane with di(2 -ethyl hexyl) phosphoric acid(D2EHPA)as carrier has been investigated. The effects of variation of the flux with time ,pH of external water phase, concentration of lanthanum and carrier on the rate of mass transfer in membrane have been studied. The results of experiment have been quantitatirely explained with equation of the rate of mass transfer. |
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| Keywords: | Hollow-Fiber Liquid Membrane Lanthanum di(2 -ethyl hexyl) Phosphoric Acid |
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