Abstract:
Supercritical fluid extraction of caesium, potassium and sodium from aqueous solutions in the presence of dicyclohexano-21-crown-7, pentadecafluoro-n-octanoic acid (PFOA) and tetraethylammonium perfluoro-1-octanesulfonate (TPFOS) has been investigated at different temperatures of supercritical carbon dioxide, ratios between reagent concentrations and initial concentrations of caesium in the solution.