Abstract
The separation of lanthanides and actinides using the liquid-liquid extraction technique poses a major challenge due to the chemical similarities of the two groups of metals. Hence, interest exists in devising a technique to improve the separation factor. The use of an imposed external field (electrochemical) to improve the liquid-liquid extraction has been explored in the literature with limited success due to conductivity issues. In this work, the use of reverse micelle solutions containing water/AOT-HDEHP/n-dodecane for improved electrical conductivity will be explored. The results of a feasibility study of electrochemical modulation of neodymium extraction using the reverse micelles/microemulsions will be presented.Electrochemical impedance technique was used to determine the effect of molar content of water, Wo, on the reverse micelle solution conductivity. The distribution ratio of Nd in an electrochemically modulated liquid-liquid extraction containing reverse micelles will also be presented. The mechanism of electrochemical modulated liquid-liquid metal ion extraction will be explored.
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