Abstract
The extraction of rare-earth (REE) and transplutonium (TPE) elements, with Ce, Eu, and Am as examples, from aqueous HNO3 with dibutyl hydrogen phosphate (HDBP) in m-nitrobenzotrifluoride (MNBTF) was studied. The diluent effect on the Eu and Am extraction with dibutyl hydrogen phosphate was examined at various HNO3 concentrations in the aqueous phase. Based on the data obtained, a mechanism of REE extraction was suggested and the parameters of extraction equations for the initial lanthanide concentrations in the aqueous phase from 0.1 to 100 g l−1 (counting on metal), HDBP concentration in MNBTF of 0.1–2 M, and HNO3 concentration in the range 0.5–8 M were calculated. Isotherms of HNO3 extraction with HDBP solutions of various concentrations were obtained. The possibility of attaining higher concentrations of REE solvates in their extraction with HDBP in MNBTF was demonstrated.
This is a preview of subscription content, log in via an institution to check access.
Similar content being viewed by others
References
Mikaiyama, T., Kubota, M., Takizuna, T., et al., in Proc. Int. Conf. “Global’95,”, Versailles (France), September 11–14, 1995, vol. 1, pp. 110–117.
Kubota, M. and Marita, Y., in Proc. Int. Conf. “Global’95,”, Versailles (France), September 11–14, 1995, vol. 1, pp. 458–462.
Liljenzin, J.O., Rydberg, J., and Skarnemark, G., Sep. Sci. Technol., 1980, vol. 15, p. 799.
Mikhin, I.V. and Smelov, V.S., Proc. Int. Conf. “Global’97,” Yokohama (Japan), October 5–10, 1997, vol. 1, pp. 418–420.
Zilberman, B.Ya., Fedorov, Yu.S., Shmidt, O.V., and In’kova, E.N., RF Patent 2106030, Byull. Izobret., 1998, no. 6.
Egorov, G.F., Radiatsionnaya khimiya ekstraktsionnykh system (Radiation Chemistry of Extraction Systems), Moscow: Energoatomizdat, 1986.
Ul’yanova, V.S. and Sviridova, R.A., Radiokhimiya, 1970, vol. 12, no. 1, p. 47.
Shevchenko, V.B. and Smelov, V.S., Zh. Neorg. Khim., 1961, vol. 6, no. 3, p. 732.
Shmidt, O.V., Zilberman, B.Ya., Fedorov, Yu.S., et al., Radiokhimiya, 2003, vol. 45, no. 6, pp. 537–542.
Solovkin, A.S. and Lobanov, A.V., Radiokhimiya, 1993, vol. 35, no. 6, p. 63.
Zilberman, B.Ya., Fedorov, Yu.S., Shmidt, O.V., et al., Radiokhimiya, 2000, vol. 42, no. 4, pp. 344–348.
Shmidt, O.V., Zilberman, B.Ya., Fedorov, Yu.S., et al., Radiokhimiya, 2002, vol. 44, no. 5, pp. 428–435.
Glekov, R., Shmidt, O., Palenik, Yu., et al., Czech. J. Phys., 2003, vol. 53, suppl. A, pp. 595–601.
Zilberman, B.Ya., Fedorov, Yu.S., Shmidt, O.V., et al., Khim. Tekhnol., 2002, vol. 3, no. 7, pp. 33–37.
Rodionov, S.A., Viznyi, A.N., Esimantovskii, V.M., et al., Abstracts of Papers, Chetvertaya Rossiiskaya. konferentsiya po radiokhimii “Radiokhimiya-2003” (Fourth Russian Conf. on Radiochemistry “Radiochemistry-2003”), Ozersk, October 20–25, 2003, pp. 111–112.
Rodionov, S.A., Viznyi, A.N., Esimantovskii, V.M., et al., Abstracts of Papers, Pyataya Rossiiskaya konferentsiya po radiokhimii “Radiokhimiya-2006” (Fifth Russian Conf. on Radiochemistry “Radiochemistry-2006”), Dubna, October 23–27, 2006 pp. 192–193.
Vizny, A.N., Rodionov, S.A., Esimantovskii, V.M., et al., in Proc. VII Int. Conf. “Safety of Nuclear Technologies: Radioactive Waste Management,” St. Petersburg (Russia), September 27–October 1, 2004, pp. 128–133.
Hardy, C.J. and Scargill, D., J. Inorg. Nucl. Chem., 1959, vol. 10, no. 3/4, pp. 323–327.
Zilberman, B.Ya., Goletskii, N.D., Shmidt, O.V., et al., Radiokhimiya, 2007, vol. 49, no. 4, pp. 344–347.
Author information
Authors and Affiliations
Additional information
Original Russian Text © S.A. Rodionov, A.N. Viznyi, V.M. Esimantovskii, B.Ya. Zilberman, 2008, published in Radiokhimiya, 2008, Vol. 50, No. 4, pp. 326–329.
Rights and permissions
About this article
Cite this article
Rodionov, S.A., Viznyi, A.N., Esimantovskii, V.M. et al. Extraction of rare-earth and transplutonium elements with dibutyl hydrogen phosphate in m-nitrobenzotrifluoride. Radiochemistry 50, 373–377 (2008). https://doi.org/10.1134/S1066362208040073
Received:
Published:
Issue Date:
DOI: https://doi.org/10.1134/S1066362208040073