Sanaa Naït-Tahar* and Mohamed Amine Didi Pages 57 - 62 ( 6 )
Cloud point extraction (CPE) was used to extract uranium (VI) from an aqueous solution in acetate media. The methodology used is based on the formation of uranyl-ionic liquid (I) complexes and uranyl-D2EHPA soluble in a micellar phase of non-ionic surfactant (Triton X-100). The uranium (VI) complexes are then extracted into the surfactant-rich phase at ambient temperature. The ionic liquid (IL) used as a chelating agent was synthesized and characterized in this study. It is composed of N-butyl N’-triethoxy methyl imidazolium cation and anion diethylhexylphosphate (D2EHPA-H).The effect of the ionic liquid IL on the extraction efficiency was studied in the presence and in the absence of IL’s cation in acetate medium.
Acetate medium, cloud-point extraction, ionic liquid, spectrometer, triton X-100, uranium.
Department of Chemistry - Faculty of Sciences, Laboratory of Separation and Purification Technologies, Box 119, Tlemcen University - 13000, Tlemcen, Department of Chemistry, Faculty of Sciences,Tlemcen University, P.O. Box: 119, Tlemcen