Abstract
Databases on the coextraction of Th or Pu with Tc into 30% TBP in hydrocarbon diluent at 25°С are presented. The coextraction leads to mutual enhancement of the extraction of all the elements. The interactions in the system are described within the framework of a new approach to modeling, using the previously suggested and additional equations of concurrently occurring chemical reactions. The apparent equilibrium constants of these reactions are calculated.
This is a preview of subscription content, log in via an institution to check access.
Similar content being viewed by others
References
Pruett, D.J., Sep. Sci. Technol., 1981, vol. 16, no. 9, pp. 1157–1179.
Garraway, J. and Wilson, P.D., J. Less-Common Met., 1985, vol. 106, pp. 183–191.
Kolarik, Z. and Dressler, D., Solvent Extr. Ion Exch., 1989, vol. 7, no. 4, pp. 625–644.
Akopov, G.A., Krinitsyn, A.P., and Tsarenko, A.F., Radiokhimiya, 1989, vol. 31, no. 6, pp. 67–70.
Puzikov, E.A., Zilberman, B.Ya., Fedorov, Yu.S., et al., Radiochemistry, 2015, vol. 57, no. 3, pp. 273–284.
Macasek, F. and Kadrabova, J., J. Radioanal. Nucl. Chem., 1979, vol. 51, no. 1, pp. 97–106.
Rozen, A.M., Zakharkin, B.S., Vakhrushin, A.Yu., and Vlasov, V.S., At. Energ., 1987, vol. 63, no. 3. pp. 175–178.
Abiad, L., Venault, L., and Moisy, Ph., in 8th Int. Symp. on Technetium and Rhenium: Science and Utilization: Proc. and Selected Lectures (La Baule-Pornichet, France, Sept. 29–Oct. 03, 2014). Nantes: Granica, 2014, pp. 74–84.
Siddal, T.H., Extraction of Thorium Nitrate from Nitric Acid by TBP–“Ultrasene”: US AECR DP-181, Savannah River Lab., 1956.
Kaplan, G.E., Moiseev, S.D., Gavrilin, V.M., et al., in Ekstraktsiya. Teoriya, primenenie, apparatura (Extraction. Theory, Applications, Apparatus), Moscow: Atomizdat, 1962, issue 2, pp. 154–159.
Pruett, D.J., The Solvent Extraction of Heptavalent Technetium and Rhenium by Tributyl Phosphate: ORNL/TM-8668, Oak Ridge National Lab., 1984.
Vakhrushin, A.Yu., Extraction chemistry of technetium( VII) and development of a procedure for its recovery as applied to conditions of spent nuclear fuel regeneration, Cand. Sci. (Chem.) Dissertation, Moscow: Bochvar All-Union Research Inst. of Inorganic Materials, 1987.
Vialard, E. and Germain, M., in Int. Solvent Extraction Conf. ISEC 86, Munich (Germany), Sept. 11–16, 1986, pp. 7–14.
Puzikov, E.A., Zilberman, B.Ya., Fedorov, Yu.S., et al., Solvent Extr. Ion Exch., 2015, vol. 33, no. 4, pp. 362–384.
Puzikov, E.A., Zilberman, B.Ya., Fedorov, Yu.S., et al., Radiochemistry, 2013, vol. 55, no. 5, pp. 481–485.
Puzikov, E.A., Zilberman, B.Ya., Fedorov, Yu.S., et al., Radiochemistry, 2014, vol. 56, no. 2, pp. 167–172.
Puzikov, E.A., Zilberman, B.Ya., Fedorov, Yu.S., et al., Radiochemistry, 2013, vol. 55, no. 3, pp. 291–297.
Puzikov, E.A., Zilberman, B.Ya., Fedorov, Yu.S., et al., Radiochemistry, 2013, vol. 55, no. 2, pp. 190–202.
Zilberman, B.Ya., Fedorov, Yu.S., Puzikov, E.A., et al., Radiochemistry, 2015, vol. 57, no. 2, pp. 136–142.
Author information
Authors and Affiliations
Corresponding author
Additional information
Original Russian Text © E.A. Puzikov, B.Ya. Zilberman, I.V. Blazheva, A.Yu. Vakhrushin, N.D. Goletskii, A.S. Kudinov, D.V. Ryabkov, O.V. Shmidt, 2016, published in Radiokhimiya, 2016, Vol. 58, No. 4, pp. 324–328.
Rights and permissions
About this article
Cite this article
Puzikov, E.A., Zilberman, B.Y., Blazheva, I.V. et al. Interaction of thorium and plutonium with pertechnetic acid in the course of extraction from nitric acid solutions with tributyl phosphate in diluent and its mathematical description. Radiochemistry 58, 374–380 (2016). https://doi.org/10.1134/S1066362216040056
Received:
Published:
Issue Date:
DOI: https://doi.org/10.1134/S1066362216040056