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Extraction of rare earth metals, uranium, and thorium from nitrate solutions by binary extractants

  • Chemical and Metallurgical Advanced Processing of Ore, Man-Made and Secondary Raw Material
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Abstract

The interphase distribution of the salts of rare earth metals (REMs) that coexist in systems containing dialkyl phosphinate and dialkyl dithiophosphinate of quaternary ammonium base (QAB) was studied. It is shown that, in principle, binary extractants based on derivatives of phosphinic acids and QAB can be used to separate REMs from the associated metals (uranium and thorium), as well as to separate uranium and thorium. A numerical investigation of the application prospects of the binary extractants for extracting and separating REMs and uranium using liquid pseudomembranes has been performed; the prospects of developing these processes have been demonstrated.

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Authors and Affiliations

  1. Kurnakov Institute of General and Inorganic Chemistry, Russian Academy of Sciences, Leninskii pr. 31, Moscow, 119991, Russia

    V. V. Belova, A. A. Voshkin & A. I. Khol’kin

  2. Chelyabinsk State Pedagogical University, pr. Lenina 69, Chelyabinsk, Chelyabinsk, 454080, Russia

    N. S. Egorova

Authors
  1. V. V. Belova
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  2. N. S. Egorova
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  3. A. A. Voshkin
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  4. A. I. Khol’kin
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Correspondence to V. V. Belova.

Additional information

Original Russian Text © V.V. Belova, N.S. Egorova, A.A. Voshkin, A.I. Khol’kin, 2014, published in Khimicheskaya Tekhnologiya, 2014, Vol. 15, No. 2, pp. 106–111.

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Belova, V.V., Egorova, N.S., Voshkin, A.A. et al. Extraction of rare earth metals, uranium, and thorium from nitrate solutions by binary extractants. Theor Found Chem Eng 49, 545–549 (2015). https://doi.org/10.1134/S0040579515040041

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  • DOI: https://doi.org/10.1134/S0040579515040041

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