Simulation of multistage electrodialysis

A simulation for multistage electrodialysis for separation of metal ions is developed, The experimental results for the separation of potassium and so dium ions by a 4-stage electrodialyzer are compared, and can be satisfactor ily reproduced by the present simulation method. It is observed that the se paration factor increases largely with increasing stage number and flow rat e of reflux, The increase in the stage number is effective to achieve a lar ge separation factor and a large recovery fraction of potassium.