Solvent extraction of lanthanum(III) from sulphuric acid solutions by Primene JMT |
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| Affiliation: | 1. Mineral Resources Research Division, Korea Institute of Geoscience & Mineral Resources (KIGAM), Daejeon 305-350, Republic of Korea;2. School of Applied Science and Center of Industrial Technology, KIIT University, Bhubaneswar 751024, Odisha, India;1. Chemical Engineering Department, EPSEVG, Universitat Politècnica de Catalunya, Víctor Balaguer 1, 08800 Vilanova i la Geltrú, Spain;2. Agri-Food Engineering and Biotechnology Department, ESAB, Universitat Politècnica de Catalunya, Esteve Terrades 8, 08860 Castelldefels, Spain;3. Chemical Engineering Department, ETSEIB, Universitat Politècnica de Catalunya, Diagonal 647, 08028 Barcelona, Spain;1. Nuclear Materials Authority, P.O. Box 530 El-Maadi, Cairo, Egypt;2. Pharmaceutical Chemistry Department, Faculty of Biotechnology, Badr University in Cairo (BUC), Badr City, Egypt |
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| Abstract: | The distribution of lanthanum(III) between aqueous H2SO4 solutions and Primene JMT in the organic phase is described. The dependence of the extraction on acidity, extractant concentration and type of diluent was investigated. Aggregation numbers are calculated and a mechanism for the extraction is suggested. The separation of thorium(IV) from lanthanum(III), cerium(III) and cerium(IV) is outlined. |
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