Chromatographische Am-/Cm-Trennung in Schwach Sauren Oxidierenden Medien in der Wässrigen-und dem Chelatbildenden Austauscher Dowex-Al in der Stationären Phase |
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Authors: | F El-Sweify S A Ali |
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Institution: | (1) Institut für Radiochemie, Kernforschungszentrum Karlsruhe, (BRD);(2) Present address: Nuclear Chemistry Department, Nuclear Research Centre, Atomic Energy Establishment, Cairo, Egypt |
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Abstract: | The separation of Am/Cm was studied in batch and dynamic experiments. It was achieved chromatographicaly on the chelating ion exchanger Dowex-Chelating-Resin-Al making use of the great difference between the complexing ability of trivalent and pentavalent oxidation states. For this purpose, the influence of some variables on the Am/Cm separation factor and on the stability of the adjusted pentavalent state was studied, e.g. the weight of ion exchanger, the time of contact and the pH-values of the solutions. Comparative investigations were carried out on the pentavalent ions of neptunium, plutonium and americium as well as on the hexavalent ions of plutonium and americium, where a significant difference in their behaviours was found. |
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