Abstract
A mass transfer model, which was proposed for the permeation of phenol through liquid surfactant membranes, has been extended to the permeation of metal ions. Experiments on batch permeation and concentration of copper ion by LIX64N and zinc ion by di-2-ethylhexyl phosphoric acid were carried out under various conditions. The results obtained by using either Span 80 or ECA4360J as surfactant were satisfactorily simulated by the model. It was found that the permeation rate of zinc ion was greatly retarded by the use of ECA4360J.
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