Abstract
The 40-step extraction process to separate rare earth elements (RЕEs) according to the praseodymium–cerium line with the use of mixer–settler extractors in a 100% TBP–Ln(NO3)3–Ca(NO3)2 system is implemented. A lanthanum–cerium concentrate containing less than 0.03 wt % of the remaining REEs is obtained. The flow diagram of the separation process of a rare earth (RE) concentrate isolated from phosphogypsum is considered.
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Lokshin, E.P., Tareeva, O.A., and Kalinnikov, V.T., Tsvetn. Met., 2012, no. 3, p. 75.
Milanova, M., Minkova, N., and Todorovsky, D., Hydrometallurgy, 1991, vol. 26, no. 3, p. 369.
Koopman, C. and Witkamp, G.J., Hydrometallurgy, 2002, vol. 63, no. 2, p. 137.
Zots, N.V., Glushchenko, Yu.G., Shestakov, S.V., Kozyrev, A.B., and Nechaev, A.V., RF Patent 2416654, 2009.
Genkin, M.V., Evtushenko, A.V., Komkov, A.A., Safiulina, A.M., Spiridonov, V.S., and Shvetsov, S.V., RF Patent 2528573, 2013.
Meshcheryakov, Yu.G. and Fedorov, S.V., Promyshlennaya pererabotka fosfogipsa (Industrial Processing of Phosphogypsum), St. Petersburg: Stroiizdat SPb, 2007.
Lokshin, E.P. and Tareeva, O.A., RF Patent 2465207, 2011.
SanPiN (Sanitary Rules and Norms) 2.6.1.2523-09: Radiation Safety Standards (RSS-99/2009), Moscow, 2009.
Mikhlin, E.B. and Korpusov, G.V., Zh. Neorg. Khim., 1965, vol. 10, no. 12, p. 2787.
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Original Russian Text © S.N. Igumnov, A.V. Valkov, 2017, published in Vestnik Moskovskogo Universiteta, Seriya 2: Khimiya, 2017, No. 3, pp. 120–125.
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Igumnov, S.N., Valkov, A.V. Separation of rare earth elements in the tributyl phosphate–Ln(NO3)3–Ca(NO3)2 system in the counter current process. Moscow Univ. Chem. Bull. 72, 115–119 (2017). https://doi.org/10.3103/S0027131417030038
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DOI: https://doi.org/10.3103/S0027131417030038