Abstract
The TBP-HNO3 and N,N′-dimethyl-N,N′-dioctylhexylethoxymalonamide-HNO3 adducts effectively recovery actinides from solid solutions of their oxides in UO2 matrix. The adduct of methyl isobutyl ketone and HNO3 selectively recovers uranium from PuO2-UO2 solid solution, separating uranium from plutonium. The optimal composition of TBP-HNO3 adducts for the recovery of actinides from the dioxide solid solutions was determined. Uranium is recovered with the adduct more rapidly at lower temperatures and smaller volume of the organic phase, as compared to the dissolution of the oxide fuel in aqueous nitric acid. This approach to the processing of spent nuclear fuel can substantially decrease the volume of highly toxic radioactive aqueous and organic wastes arising with the existing technologies.
Similar content being viewed by others
References
The Chemistry of the Actinide Elements, Katz, J., Seaborg, G.T., and Morss, L.R., Eds., London: Chapman and Hall, 1986, 2nd ed., vol. 1, p. 525.
Denniss, I. and Jeapes, A., The Nuclear Fuel Cycles: From Ore to Waste, Wilson, P.D., Ed., Oxford: Oxford Univ. Press, 1996, ch. 7, p. 123.
Smart, N., Phelps, C., and Wai, C.M., Chem. Brit., 1998, vol. 34, p. 34.
Samsonov, M.D., Trofimov, T.I., Vinokurov, S.E., et al., J. Nucl. Sci. Technol., Suppl. 3, 2002, pp. 363–366.
Kulyako, Y.M., Trofimov, T.I., Samsonov, M.D., and Myasoedov, B.F., Mendeleev Commun., 2003, no. 6, pp. 15–16.
Kulyako, Yu.M., Trofimov, T.I., Samsonov, M.D., and Myasoedov, B.F., Radiokhimiya, 2003, vol. 45, no. 5, pp. 453–455.
Plutonium Handbook. A Guide to the Technology, Wick, O.J., Ed., New York: Gordon and Breach, 1967. Translated under the title Plutonium: Spravochnik, Moscow: Atomizdat, 1971, vol. 1, p. 243.
Filipov, A.P. and Strelkov, L.A., Radiokhimiya, 1979, vol. 21, no. 3, pp. 363–365.
Taylor, L.T., Supercritical Fluid Extraction, New York: Wiley, 1996.
Cuillerdrier, C. et al., Malonamides as New Extractants: IRDI/DERDCA/DRG-BP no. 6, 92265, France: Commissiarait a l’Energie Atomique.
Nikolotova, Z.I. and Kartasheva, N.A., Ekstraktsiya neitral’nymi organicheskimi soedineniyami: spravochnik po ekstraktsii (Extraction with Neutral Organic Compounds: Handbook on Extraction), Moscow: Atomizdat, 1978, vol. 1, p. 48.
Filipov, A.P. and Strelkov, L.A., Radiokhimiya, 1971, vol. 13, no. 1, pp. 52–57.
Seaborg, G.T. and Katz, J.J., The Actinide Elements, New York: McGraw-Hill, 1954. Translated under the title Khimiya aktinidnykh elementov, Moscow, 1960, p. 282.
Atomnaya nauka i tekhnika SSSR (Nuclear Science and Engineering in USSR), Petros’yants, A.M., Ed., Moscow: Energoatomizdat, 1987, p. 167.
Author information
Authors and Affiliations
Additional information
Original Russian Text © Yu.M. Kulyakov, T.I. Trofimov, M.D. Samsonov, B.F. Myasoedov, 2007, published in Radiokhimiya, 2007, Vol. 49, No. 3, pp. 211–215.
Rights and permissions
About this article
Cite this article
Kulyako, Y.M., Trofimov, T.I., Samsonov, M.D. et al. Recovery of actinides from their dioxides using organic reagents saturated with nitric acid. Radiochemistry 49, 241–245 (2007). https://doi.org/10.1134/S1066362207030058
Received:
Issue Date:
DOI: https://doi.org/10.1134/S1066362207030058