Uranium micelle-mediated extraction in acetate medium: factorial design optimization |
| |
| Authors: | Na?t-Tahar Sanaa Mohamed Amine Didi Didier Villemin |
| |
| Institution: | 1. Laboratory of Separation and Purification Technologies, Department of Chemistry, Faculty of Sciences, University of Tlemcen, Box 119, 13000, Tlemcen, Algeria
2. Laboratoire de Chimie Mol??culaire et Thioorganique, Universit?? de Caen, UMR CNRS 6507, INC3M, FR 3038, ENSICAEN & Centre de Recherche, 14050, Caen, France
|
| |
| Abstract: | A micelle-mediated extraction (CPE) procedure has been developed to remove trace amounts of uranium from wastewater using a non-ionic surfactant (Triton (X-100)) and lipophilic chelating extracting agent (D2EHPA) in acetate medium. The methodology used is based on the formation of metal complexes soluble in a micellar phase of a non-ionic surfactant. The uranyl ions complexes are then extracted into the surfactant-rich phase at a ambient temperature. The effects of different operating parameters such as the concentrations of Triton (X-100), D2EHPA and metal ions, temperature, sodium acetate rate and pH on the cloud point extraction of uranyl ions were studied in details and a set of optimum conditions were obtained. The results showed, without contribution of energy (ambient temperature), that up to 1000?ppm of uranyl ions can quantitatively be removed (>97?%) in a single CPE extraction using optimum conditions. |
| |
| Keywords: | |
| 本文献已被 SpringerLink 等数据库收录！ |
|
