Separation of rare-earth and transplutonium elements by displacement chromatography on S-957 phosphonic ion exchanger
Autor: | O. V. Kharitonov, V. M. Gelis, Yu. B. Shumilova, L. A. Firsova, V. V. Milyutin |
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Rok vydání: | 2012 |
Předmět: | |
Zdroj: | Radiochemistry. 54:164-167 |
ISSN: | 1608-3288 1066-3622 |
DOI: | 10.1134/s1066362212020129 |
Popis: | Sorption of transplutonium (TPE) and rare-earth (REE) elements on Purolite®S-957 ion exchanger containing phosphonic acid and sulfo groups was studied. Rare-earth elements are efficiently sorbed from weakly acidic solutions (≤0.1 M HNO3). An increase in the solution acidity and introduction of sodium ions into the sorption medium lead to a decrease in the sorption. With S-957 resin, REE and TPE were separated for the first time on a phosphorus-containing sorbent by displacement chromatography in the presence of DTPA (diethylenetriaminepentaacetic acid). |
Databáze: | OpenAIRE |
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