Solvent extraction of Cu,Mo, V,and U from leach solutions of copper ore and flotation tailings |
| |
| Authors: | Tomasz Smolinski Danuta Wawszczak Andrzej Deptula Wieslawa Lada Tadeusz Olczak Marcin Rogowski Marta Pyszynska Andrzej Grzegorz Chmielewski |
| |
| Institution: | 1.Urology and Nephrology Center,Mansoura University,Mansoura,Egypt;2.Chemistry Department, Faculty of Science,Mansoura University,Mansoura,Egypt;3.Chemistry Department, Faculty of Science,Port Said University,Port Said,Egypt |
| |
| Abstract: | A micro-cloud point extraction method was discussed for preconcentration and spectrophotometric quantification of U(VI). The method depends on complex formation between U(VI) and 2-(4-sulphophenyloazo)-1,8-dihydroxy-3,6-naphtalenedisulphonic acid (SPADNS) at pH 7.0 and subsequent extraction of the complex in a mixed surfactant medium (cethyltrimethyl ammonium bromide and Triton X-114). The separation was carried out in the presence of 1% Na2SO4 at room temperature. The calibration curve was linear up to 3000 µg L?1. The enrichment factor, detection limit and precision were 16.0, 1.05 µg L?1, and 2.3%, respectively. The method was employed for the determination of U(VI) in real samples with different matrices. |
| |
| Keywords: | |
| 本文献已被 SpringerLink 等数据库收录！ |
|
