【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。更多还原

【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)更多还原