COMPARISON BETWEEN THREE-PHASE EXTRACTION SYSTEM OF TBP-KEROSENE/HClO₄-H₂O AND TWO-PHASE EXTRACTION SYSTEM OF TBP/HC10₄-H₂O *

This study is supported by The Natural Science Foundation of The States (29971020) and The Key Lab of Chem. Eng. in Qinghua University.

ABSTRACT

Three-phase extraction system of TBP-kerosene / HClO₄-H₂O has been studied and compared with two-phase system of TBP / HClO₄-H₂O. 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 organic 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 extracted complexes.

Key words:

• Three-phase extraction
• TBP
• HClO₄

Notes

This study is supported by The Natural Science Foundation of The States (29971020) and The Key Lab of Chem. Eng. in Qinghua University.

Additional information

Notes on contributors

Fu Xun

corresponding author