Abstract
For the selective extraction of radionuclides from nitrate media, the extraction properties of organopolyphosphine polyoxides were examined in the form of impregnated adsorbents. It was found that the extraction property of 1,1,3,5,5-pentaphenyl-1,3,5-triphosphapentane trioxide (PPTPT) for U(VI) is quite unusual with very high values of the distribution ratio in nitric acid solutions of both low and high concentration ranges, which is not observed for other types of extractants. From the extraction properties for other metal ions, this type of extracant may be promising for the selective extraction of U(VI) from HNO3 of very low and high concentrations.
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The authors would like to thank Mr. K. Maruyama for his technical advice and support.
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Nogami, M., Sugiyama, Y. & Ikeda, Y. Adsorptivity of silica-supported adsorbents impregnated with polyphosphine polyoxides to U(VI) and some other metal ions in nitric acid media. J Radioanal Nucl Chem 284, 195–199 (2010). https://doi.org/10.1007/s10967-010-0465-0
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DOI: https://doi.org/10.1007/s10967-010-0465-0