Comparison between three-phase extraction system of tbp-kerosene/HClO_4-H_4O and Two-Phase extraction system of TBP/HClO_4-H_2O

摘要

Three-phase extraction system of TBP-kerosene/HClO_4-H_2O has been studied and compared with twophase system of TBP/HClO_4-H_2O.The results indicate that the composition of the middle phase and its change with the increasing aqueous acidity in the three-phase system are almost the same as that of the orgnic phase in two-phase system.The extraction in high acidity can be explained by the solubilization of acid and water in the aggregates formed by amphiphilic extractec complexes.