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Journal of Solution Chemistry

, Volume 47, Issue 4, pp 715–726 | Cite as

3,3′-Bis(diisopropoxyphosphoryl)-1,1′-(heptane-1,7-diyl)diurea as a Very Efficient Extraction Agent for Europium and Americium

  • Emanuel Makrlík
  • Petr Vaňura
  • Pavel Selucký
  • Vasiliy Brusko
Article
  • 47 Downloads

Abstract

Solvent extraction of microamounts of Eu3+ and Am3+ from water into nitrobenzene by means of a mixture of hydrogen dicarbollylcobaltate and 3,3′-bis(diisopropoxyphosphoryl)-1,1′-(heptane-1,7-diyl)diurea (L) was studied. The equilibrium data were explained by assuming that the species HL+, \( {\text{ML}}_{2}^{3 + } \), and \( {\text{ML}}_{3}^{3 + } \) {M3+ = Eu3+, Am3+; L = 3,3′-bis(diisopropoxyphosphoryl)-1,1′-(heptane-1,7-diyl)diurea} are extracted into the organic phase. Extraction and stability constants of the cationic complex species in nitrobenzene saturated with water were determined and discussed. From the experimental results it is apparent that this very effective 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 N-phosphorylated bis-urea 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,” and by the Czech Ministry of Education, Youth, and Sports, Project MSMT No.: 20/2015.

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Copyright information

© Springer Science+Business Media, LLC, part of Springer Nature 2018

Authors and Affiliations

  • Emanuel Makrlík
    • 1
  • Petr Vaňura
    • 2
  • Pavel Selucký
    • 3
  • Vasiliy Brusko
    • 4
  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.JSC NIIneftepromchimKazanRussia

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