CIESC Journal

• 化工学报 • 上一篇    下一篇

乳状液膜法提取钪的反应扩散模型

徐铜文,范文元   

  1. 合肥工业大学化工系,合肥工业大学化工系 合肥 230009 天津大学化学工程系 ,合肥 230009
  • 出版日期:1994-02-25 发布日期:1994-02-25

A REACTION DIFFUSION MODEL FOR EXTRACTING SCANDIUM WITH EMULSION LIQUID MEMBRANE (ELM)

Xu Tongwen and Fan Wenyuan (Department of Chemical Engineering, Hefei University of Technology, Hefei 230009)   

  • Online:1994-02-25 Published:1994-02-25

摘要: 提出了一种促进迁移的反应扩散模型,该模型考虑了外相边界层、膜相扩散和界面化学反应同时控制的情况,并考虑了膜破裂的影响。用间歇式液膜提钪进行了定量验证。模型计算值与实验值符合良好,尤其是对迁移溶质浓度较低(<0.22mmol/L)的外相料液体系更为适用。

Abstract: An type Ⅱ interfacial reaction diffusion model for facilitating transport in the liquid surfactant membranes has been developed. Besides considering aqueous diffusion, membrane diffusion and interfacial chemical reactions as simultaneous controlling factors, the model includes the influence of the ELM breakage. The model quantitatively proven in the batch extraction of scandium is especially applicable to the low concentration solution (less than 0. 22 mmol/L)

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