Mass transfer process and separation mechanism of sulfuric acid and aluminum sulfate mixture based on IEC technology: Modeling

Jingwei Kou,Houle Xiang,Zhen Zhang,Jing Zhang,Guiqin Wang,Kun Dai,Pengpeng Yang,Wei Zhuang,Hanjie Ying,Jinglan Wu

Separation and Purification Technology（2022）

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摘要

•A cooperative adsorption isotherm was proposed for H2SO4 and Al2(SO4)3.•A dynamic model was proposed to interpret the mass transfer process.•A column model was developed to describe the separation mechanism.•Metal-ions of different valence affected the H2SO4 ‘concentration’.

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关键词

Donnan equilibrium,IEC chromatography,Cooperative adsorption,‘concentration’ effect,Sulfuric acid and aluminum sulfate mixture

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