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Journal of Solution Chemistry

, Volume 46, Issue 7, pp 1475–1489 | Cite as

Highly Efficient Solvent Extraction of Americium and Europium by Using Hydrogen Dicarbollylcobaltate and N,N′-Diethyl-N,N′-bis(4-ethylphenyl)-1,10-phenanthroline-2,9-dicarboxamide

  • Emanuel Makrlík
  • Petr Vaňura
  • Pavel Selucký
  • Vasily Babain
  • Mikhail Alyapyshev
  • Dmitriy Dar’in
Article

Abstract

Solvent extraction of microamounts of Eu3+ and Am3+ from water into nitrobenzene by means of a mixture of hydrogen dicarbollylcobaltate (H+B) and N,N′-diethyl-N,N′-bis(4-ethylphenyl)-1,10-phenanthroline-2,9-dicarboxamide (L) was studied. The equilibrium data were explained assuming that the species HL+, \( \text{HL}_{\text{2}}^{ + } \), \( \text{ML}_{2}^{3 + } \), and \( \text{ML}_{\text{3}}^{{\text{3} + }} \) (M3+ = Eu3+, Am3+; L = N,N′-diethyl-N,N′-bis(4-ethylphenyl)-1,10-phenanthroline-2,9-dicarboxamide) are extracted into the organic phase. Extraction and stability constants of the cationic complex species in nitrobenzene saturated with water were determined and are discussed. The reached separation factors SFAm/Eu in this two-phase system are in the range of 19–99. From the experimental results it is apparent that this very effective N,N′-diethyl-N,N′-bis(4-ethylphenyl)-1,10-phenanthroline-2,9-dicarboxamide receptor for the Eu3+ and Am3+ cations could be considered as a potential extraction agent for nuclear waste treatment.

Graphical Abstract

Keywords

Solvent extraction Europium and americium Substituted 1,10-phenanthroline-2,9-dicarboxamide Extraction and stability constants Water–nitrobenzene system 

Notes

Acknowledgements

This work was supported by the Grant Agency of Faculty of Environmental Sciences, Czech University of Life Sciences, Prague, Project No. 42900/1312/3114 entitled “Environmental Aspects of Sustainable Development of Society,” by the Czech Ministry of Education, Youth, and Sports, Project MSMT No. 20/2015, and finally, by the Government of Russian Federation, Grant No. 074-U01.

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Copyright information

© Springer Science+Business Media, LLC 2017

Authors and Affiliations

  • Emanuel Makrlík
    • 1
  • Petr Vaňura
    • 2
  • Pavel Selucký
    • 3
  • Vasily Babain
    • 4
    • 5
  • Mikhail Alyapyshev
    • 5
    • 6
  • Dmitriy Dar’in
    • 7
  1. 1.Faculty of Environmental SciencesCzech University of Life Sciences, PraguePrague 6 – SuchdolCzech Republic
  2. 2.Department of Analytical ChemistryUniversity of Chemistry and Technology, PraguePrague 6Czech Republic
  3. 3.Nuclear Research InstituteŘežCzech Republic
  4. 4.ThreeArc Mining Ltd5, Stary Tolmachevskiy pr.MoscowRussia
  5. 5.ITMO UniversitySt. PetersburgRussia
  6. 6.Polymetal InternationalSt. PetersburgRussia
  7. 7.Institute of ChemistrySt. Petersburg State UniversitySt. PetersburgRussia

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