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Extraction of Rare-Earth Elements from Chloride and Nitrate Solutions in Multicomponent Systems with Di(2-ethylhexyl)phosphoric Acid

  • CHEMISTRY AND TECHNOLOGY OF RARE, SCATTERED, AND RADIOACTIVE ELEMENTS
  • Published:
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Abstract

The extraction of rare-earth elements (REEs) from chloride (0.01 M HCl + 0.1 M NaCl) and nitrate (0.01 M HNO3 + 0.1 M NaNO3) solutions in ternary hexane–isopropanol–water systems with the use of di(2-ethylhexyl)phosphoric acid (D2EHPA) as an extragent is studied. It is shown that the extractability of rare-earth elements improves with increasing atomic number, as is typical for the extraction systems with D2EHPA. It is established that the use of a di(2-ethylhexyl)phosphoric acid–caprylic acid mixture improves the solubility of extractable compounds and the recovery of metals.

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Funding

This study was performed within the state task to the Kurnakov Institute of General and Inorganic Chemistry of the Russian Academy of Sciences in the field of fundamental research and financially supported by the Russian Foundation for Basic Research (project no. 20-53-18007).

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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 & D. M. Shamshurina

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  1. V. V. Belova
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  2. Yu. V. Tsareva
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  3. D. M. Shamshurina
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Correspondence to V. V. Belova.

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Translated by E. Glushachenkova

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Belova, V.V., Tsareva, Y.V. & Shamshurina, D.M. Extraction of Rare-Earth Elements from Chloride and Nitrate Solutions in Multicomponent Systems with Di(2-ethylhexyl)phosphoric Acid. Theor Found Chem Eng 57, 1187–1191 (2023). https://doi.org/10.1134/S0040579523050056

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