Abstract
Extraction of U(VI), TUE, and REE from acid process solution with solutions of mono-and bidentate neutral organophosphorus compounds (NOPCs), phenyloctyl(N,N-diisobutylcarbamoylmethyl)phosphine oxide (CMPO), 2-ethylhexyl (N,N-dibutylcarbamoylmethyl)phenylphosphinate (CMPP), and unsymmetrical phosphine oxide (UPO) was studied as influenced by γ-irradiation at different absorbed dose rates. In all cases extraction of the target radionuclides decreased with increasing absorbed dose of γ-radiation. The resistance of the NOPCs to radiolysis decreases as CMPO>CMPP>UPO owing to the difference in the structures of their molecules.
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Original Russian Text © M.V. Logunov, Yu.A. Voroshilov, N.P. Starovoitov, A.Yu. Shadrin, I.V. Smirnov, I.B. Kvasnitskii, I.G. Tananaev, B.F. Myasoedov, V.P. Morgalyuk, M. Kamiya, I. Koma, T. Koyama, 2006, published in Radiokhimiya, 2006, Vol. 48, No. 1, pp. 51–56.
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Logunov, M.V., Voroshilov, Y.A., Starovoitov, N.P. et al. Radiation resistance of a series of organophosphorus extractants. Radiochemistry 48, 55–61 (2006). https://doi.org/10.1134/S1066362206010127
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DOI: https://doi.org/10.1134/S1066362206010127