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Solvent extraction of heptavalent technetium

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Abstract

An extraction study was performed on technetium in its highest oxidation state as a function of nitric acid concentration at 25, 50 and 70 °C. A long chain amine (tri-n-octylamine TOA) and an organophosphorus solvent (TBP) have been investigated. Addition of NH4NO3 has a salting-out effect on the extraction of TBP in the aqueous phase and therefore decreases the distribution coefficient for heptavalent technetium. The mechanism of extraction is discussed in the light of the results obtained.

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  1. Chemistry Department, Faculty of Science, Zagazig University, Zagazig, Egypt

    A. M. El-Kot

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  1. A. M. El-Kot
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El-Kot, A.M. Solvent extraction of heptavalent technetium. Journal of Radioanalytical and Nuclear Chemistry, Articles 163, 363–372 (1992). https://doi.org/10.1007/BF02034810

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  • DOI: https://doi.org/10.1007/BF02034810

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