Extraction of Chromium with Liquid Surfactant Membranes Containing TOA Carrier

Effect of TOA concentrations on chromium molar fractions in the external, organic, internal phases

Abstract

Experiments dealing with the effects of TOA concentrations on time courses of chromium molar fractions in the external, organic and internal phases during the separation-concentration process of chromium were carried out using Span 80 and two kinds of polyamine surfactants, Polyamine-E and Polyamine-L. The optimum TOA concentration and the optimum extraction time were determined in order to obtain the maximum chromium molar fraction in the internal phase.