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Extraction of uranium(VI) with non-plasticized and TBP-plasticized polyurethane foam sorbents loaded with dibenzoylmethane

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Abstract

Studies have shown that plots of the log of the distribution ratio versus pH for the distribution of uranium(VI) between non-plasticized and TBP-plasticized dibenzoylmethane-loaded polyurethane foams and dilute aqueous uranium(VI) solutions have a limiting slope of 0.6 at equilibrium pH values ≤4 and reach a maximum distribution constant at about pH 6.0. The results indicate that the extracted complex is a simple chelate, UO2Me2, where HMe denotes dibenzoylmethane. Plasticization of the foam with TBP has been found to significantly enhance the rate of extraction.

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Authors and Affiliations

  1. Nuclear Chemistry and Radiation Protection Departments, Nuclear Research Centre, Atomic Energy Establishement, Atomic Energy, Post 13759, Cairo, (Egypt)

    K. Shakir, M. Aziz & Sh. G. Beheir

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  1. K. Shakir
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  2. M. Aziz
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  3. Sh. G. Beheir
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Shakir, K., Aziz, M. & Beheir, S.G. Extraction of uranium(VI) with non-plasticized and TBP-plasticized polyurethane foam sorbents loaded with dibenzoylmethane. Journal of Radioanalytical and Nuclear Chemistry, Articles 162, 227–238 (1992). https://doi.org/10.1007/BF02035383

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  • DOI: https://doi.org/10.1007/BF02035383

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