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Peculiarities of the synergistic solvent extraction of lanthanides with mixtures of chelating extractants and tridodecylamine

Einige Eigenschaften der synergetischen Extraktion von Lanthaniden mit Mischungen aus chelatbildenden Extrahenten und Tridodecylamin

  • Anorganische Und Physikalische Chemie
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Summary

The synergistic solvent extraction of Pr, Gd, and Yb with mixture of thenoyltrifluoroacetone (HTTA) or 1-phenyl-3-methyl-benzoyl-pyrazol-5-one (HP) and tridodecylammonium chloride (TDAHCl) in C6H6 has been studied. The composition of the extracted complexes has been determined asLn(TTA)3 TDAHCl andTDAH+[LnP 4]−. The values of the equilibrium constants have been calculated. Some peculiarities of the synergistic extraction process are discussed.

Zusammenfassung

Es wurde die synergetische Extraktion von Pr, Gd und Yb mit Mischungen aus Thenoyltrifluoraceton (HTTA) oder 1-Phenyl-3-methyl-4-benzoyl-pyrazol-5-on (HP) und Tridodecylamin (TDA) untersucht. Die Zusammensetzung der ExtraktionskomplexverbindungenLn(TTA)3 TDAHCl undTDAH+[LnP 4]− wurde bestimmt und die Gleichgewichtskonstanten wurden berechnet. Die Eigenschaften der synergetischen Extraktion werden diskutiert.

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Authors and Affiliations

  1. Department of Inorganic Chemistry, Higher Institute of Chemical Technology, BG-1756, Sofia, Bulgaria

    I. L. Dukov

  2. Department of Chemistry, Institute of Industrial Chemistry and Machine Building, BG-9010, Varna, Bulgaria

    M. N. Misheva

Authors
  1. I. L. Dukov
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  2. M. N. Misheva
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Dukov, I.L., Misheva, M.N. Peculiarities of the synergistic solvent extraction of lanthanides with mixtures of chelating extractants and tridodecylamine. Monatsh Chem 126, 1187–1193 (1995). https://doi.org/10.1007/BF00824296

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  • DOI: https://doi.org/10.1007/BF00824296

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