Abstract
Our earlier paper described a liquid-liquid extraction process for metal ions using a Winsor I1 microemulsion system (I). A Winsor I1 system is a biphasic system in which a water-in-oil microemulsion exists in equilibrium with a lower predominately aqueous phase (2). Complete details of the system, the experiments, and the modeling efforts have been given in our earlier work (1). Hence, to avoid redundancy, only the salient features are discussed here as a prelude to dealing with the extension of the model.