2002•Hydrometallurgy of ChinaRequires access

Selection of Three-Cell Electrodialysis Stack Material in Treating Low Concentration SO_2 Absorbent by Membrane Electrodialysis

Bao Ji

Abstract

Treatment method of low concentration SO2 absorbent by membrane electrodialysis is proposed, and design principle of threecell electrodialysis stack is described. Mechanisms of electrodialysis and ions transfer are detail clarified. Selection constitute material, for example,cation exchange membrane and metal anode selection in the system of H2SO4H2SO3NaHSO3 Na2SO3 are detail discussed. Experiment has been carried out, and good results has been obtained.

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Key concepts: Electrodialysis, Stack (abstract data type), Membrane, Chemistry, Anode, Selection (genetic algorithm), Chromatography, Chemical engineering