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Synergistic solvent extraction of Eu(III) and Tb(III) with mixtures of various organophosphorus extractants

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Abstract

Synergistic solvent extraction of Eu(III) and Tb(III) from thiocyanate solutions with mixtures of 2-ethylhexylphosphonic acid mono-2-ethylhexyl ester (EHPNA) and di-2-ethylhexylphosphoric acid (DEHPA) or tributyl phosphate (TBP) or trioctylphosphine oxide (TOPO) or triphenylphosphine oxide (TPhPO) in benzene has been studied. The mechanism of extraction can be explained by a simple chemically based model presented in this paper. The equilibrium constants of the mixed-ligand species of the various neutral donors have been determined by non-linear regression analysis.

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Authors and Affiliations

  1. Department of Chemistry, S.V. University P.G. Center, 516004, Cuddapah, (India)

    B. V. Reddy, L. K. Reddy & A. S. Reddy

  2. Regional Research Laboratory (CSIR), 695019, Trivandrum, (India)

    M. L. P. Reddy, S. Sujatha, T. R. Ramamohan & A. D. Damodaran

Authors
  1. B. V. Reddy
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  2. L. K. Reddy
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  3. A. S. Reddy
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  4. M. L. P. Reddy
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  5. S. Sujatha
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  6. T. R. Ramamohan
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  7. A. D. Damodaran
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Reddy, B.V., Reddy, L.K., Reddy, A.S. et al. Synergistic solvent extraction of Eu(III) and Tb(III) with mixtures of various organophosphorus extractants. Journal of Radioanalytical and Nuclear Chemistry, Articles 178, 109–120 (1994). https://doi.org/10.1007/BF02068662

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  • DOI: https://doi.org/10.1007/BF02068662

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