Abstract
Molal activity coefficients of uranyl nitrate and nitric acid in mixed solutions were calculated on the basis of Mikulin’s equations. Analytical equations for calculating these quantities at different concentrations were obtained. These equations are compatible with published activity coefficients for binary solutions, which allows their use for calculating the equilibria in uranium extraction from nitric acid solutions.
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Ochkin, A., Gladilov, D., and Nekhaevskiy, S., Procedia Chem., 2012, vol. 7, pp. 315–321.
Ochkin, A.V., Theor. Found. Chem. Eng., 2014, vol. 48, no. 1, pp. 34–38.
Zilberman, B.Ya., Fedorov, Yu.S., Puzikov, E.A., and Blazheva, I.V., Development of the database and adaptation of the mathematical model of the Purex process to the conditions of reprocessing of high-burn-up spent nuclear fuel from nuclear power plants, Preprint of the Khlopin Radium Inst., St. Petersburg, 2009, no. RI-264.
Ochkin, A., Gladilov, D., and Nekhaevskiy, S., J. Solution Chem., 2016, vol. 45, pp. 1634–1640.
Ochkin, A., Gladilov, D., Nekhaevskiy, S., and Merkushkin, A., Procedia Chem., 2016, vol. 21, pp. 517–523.
Ochkin, A.V., Gladilov, D.Yu., and Nekhaevskii, S.Yu., Russ. J. Phys. Chem. A, 2009, vol. 83, no. 10, pp. 1802–1806.
Ochkin, A.V., Gladilov, D.Yu., and Nekhaevskii, S.Yu., Zh. Fiz. Khim., 2013, vol. 87, no. 9, pp. 1507–1512.
Ochkin, A.V., Afonina, M.A., Merkushkin, A.O., and Nekhaevskii, S.Yu., Russ. J. Phys. Chem. A, 2010, vol. 84, no. 9, pp. 1526–1531.
Ochkin, A.V. and Nekhaevskii, S.Yu., Theor. Found. Chem. Eng., 2015, vol. 49, no. 5, pp. 649–655.
Davis, W., Lawson, P.S., DeBruin, H.J., and Mrochek, J., J. Phys. Chem., 1965, vol. 69, pp. 1904–1914.
Yu Yang-Xin, Zhang Qing-Yin, and Gao Guang-Hua, J. Radioanal. Nucl. Chem., 2000, vol. 245, no. 3, pp. 581–587.
Goldberg, S.M., Benedict, M., and Levy, H.W., Nucl. Sci. Eng., 1972, vol. 47, p.169.
Ochkin, A.V., Merkushkin, A.O., Nekhaevskii, S.Yu., and Tyupina, E.A., Radiochemistry, 2016, vol. 58, no. 3, pp. 280–286.
Mikulin, G.I. and Voznesenskaya, I.E., Voprosy fizicheskoi khimii rastvorov elektrolitov (Problems of Physical Chemistry of Electrolyte Solutions), Mikulin, G.I., Ed., Leningrad: Khimiya, 1968, pp. 304–329.
Zdanovskii, A.B., Relationships in variation of properties of mixed solutions, Tr. Sol. Lab. Akad. Nauk SSSR, 1936, no.6.
Ochkin, A., Gladilov, D., Nekhaevskiy, S., and Merkushkin, A., Procedia Chem., 2016, vol. 21, pp. 87–92.
Voznesenskaya, I.E., Voprosy fizicheskoi khimii rastvorov elektrolitov (Problems of Physical Chemistry of Electrolyte Solutions), Mikulin, G.I., Ed., Leningrad: Khimiya, 1968, pp. 172–201.
Voznesenskaya, I.E. and Mikulin, G.I., Voprosy fizicheskoi khimii rastvorov elektrolitov (Problems of Physical Chemistry of Electrolyte Solutions), Mikulin, G.I., Ed., Leningrad: Khimiya, 1968, pp. 361–400.
Goldberg, R.N., J. Phys. Chem. Ref. Data, 1979, vol. 8, pp. 1005–1050.
Davis. W. and De Bruin, H.J., J. Inorg. Nucl. Chem., 1964, vol. 26, pp. 1069–1083.
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Original Russian Text © A.V. Ochkin, A.O. Merkushkin, S.Yu. Nekhaevskii, D.Yu. Gladilov, 2018, published in Radiokhimiya, 2018, Vol. 60, No. 5, pp. 459–463.
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Ochkin, A.V., Merkushkin, A.O., Nekhaevskii, S.Y. et al. Modeling of the Activities of Uranyl Nitrate and Nitric Acid in Mixed Solutions. Radiochemistry 60, 534–540 (2018). https://doi.org/10.1134/S1066362218050107
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DOI: https://doi.org/10.1134/S1066362218050107