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Interphase Distribution of Lanthanide Nitrates in Aqueous Organic Two-Phase Systems with Amine and Organic Acid Salts

  • CHEMISTRY AND TECHNOLOGY OF RARE, TRACE, AND RADIOACTIVE ELEMENTS
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Abstract

The extraction of lanthanide nitrates from 0.5 M NaNO3 solutions in 1 : 1 : 1 ternary aqueous organic systems using mixtures of trioctylammonium dialkyl phosphate and dicyclohexylammonium caprylate as extractants was studied. The extractability of lanthanides was shown to increase in the series La < Pr < Nd, Sm, Eu < Gd < Tb < Dy < Ho < Er < Tm, in which the atomic number of the metal increases. The selectivity of extraction in the ternary system was observed during the extraction of heavy lanthanides.

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Funding

This study was partly performed under the government contract in the field of fundamental research and financially supported by the Russian Foundation for Basic Research (project no. 17-03-00263).

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Authors and Affiliations

  1. Kurnakov Institute of General and Inorganic Chemistry, Russian Academy of Sciences, 119991, Moscow, Russia

    V. V. Belova & Yu. V. Tsareva

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  1. V. V. Belova
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  2. Yu. V. Tsareva
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Correspondence to V. V. Belova.

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Translated by L. Smolina

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Belova, V.V., Tsareva, Y.V. Interphase Distribution of Lanthanide Nitrates in Aqueous Organic Two-Phase Systems with Amine and Organic Acid Salts. Theor Found Chem Eng 54, 769–774 (2020). https://doi.org/10.1134/S0040579520040053

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  • DOI: https://doi.org/10.1134/S0040579520040053

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