Skip to main content
SpringerLink
Log in

Synergic extraction of trivalent gadolinium, europium and americium radionuclides by 15-crown-5 or 18-crown-6 mixed with thenoyltrifluoroacetone from perchlorate medium

  • Published:
Journal of Radioanalytical and Nuclear Chemistry Aims and scope Submit manuscript

Abstract

Synergic extraction of trivalent Eu, Gd and Am from aqueous perchlorate medium has been studied using mixtures of thenoyltrifluoroacetone (HTTA) and 15-crown-5 or 18-crown-6 (CE) in chloroform at (25±1) °C. Slope analysis of the extraction results indicated a general formula of M(TTA)3·(CE)2 for the extracted species. The stability order took the sequence Eu(TTA)3·(CE)2>Am(TTA)3)·(CE)2>>Gd(TTA)3·(CE)2 with 15C5 and Am(TTA)3·(CE)2>Eu(TTA)3·(CE)2>Gd(TTA)3·(CE)2 with 18C6. The synergic factors, extracton constants and formation constants of the extracted species were determined and discussed in terms of the correspondence between cavity size of the crown ethers and ionic crystal radii.

This is a preview of subscription content, log in via an institution to check access.

Access this article

Log in via an institution

Price excludes VAT (USA)
Tax calculation will be finalised during checkout.

Instant access to the full article PDF.

Institutional subscriptions

Similar content being viewed by others

References

  1. C. J. PEDERSEN, H. K. FRENSDORFF, Angew. Chem. Intern. Edit., 11 (1972) 16.

    Google Scholar 

  2. W. J. McDOWELL, B. A. ARNDSTEN, G. N. CASE, Solv. Extr. Ion Exch., 7 (1989) 377.

    Google Scholar 

  3. H. M. H. H. IRVING, in: Solvent Extraction Chemistry, D. DYRSSEN, J. O. LILJENZIN, J. RYDBERG (Eds), North Holland, Amsterdam, 1967, p. 91.

    Google Scholar 

  4. W. F. KINARD, W. J. McDOWELL, R. R. SHOUN, Sep. Sci. Technol., 15 (1980) 1013.

    Google Scholar 

  5. LIN-MEI TSAY, JENG-SHANG SHIH, SHOW-CHII, WU., Analyst, 108. (1983) 1108.

    Google Scholar 

  6. S. M. KHALIFA, N. ZAKAREIA, H. F. ALY, J. Radioanal. Nucl. Chem., 125 (1988) 373.

    Google Scholar 

  7. H. F. ALY, S. M. KHALIFA, J. D. NAVRATIL, M. R. SABA, Solv. Extr. Ion Exch., 3 (1985) 623.

    Google Scholar 

  8. G. M. NAIR, D. R. PRABBU, J. Radioanal. Nucl. Chem., 121 (1988) 83.

    Google Scholar 

  9. D. D. ENSOR, A. H. SHAH, Solv. Extr. Ion Exch., 2 (1984) 591.

    Google Scholar 

  10. R. M. SMITH, A. E. MARTEL, Critical Stability Constants, Vol. 6, Plenum Press, New York, 1989.

    Google Scholar 

  11. R. M. WHARF, G. R. CHOPPIN, Solv. Extr. Ion Exch., 8 (1990) 615.

    Google Scholar 

  12. G. R. CHOPPIN, J. Less Common Metals, 93 (1983) 323.

    Google Scholar 

  13. Y. A. ZOLOTOV, L. G. GAVRILOVA, J. Inorg. Nucl. Chem., 31 (1969) 3613.

    Google Scholar 

Download references

Author information

Authors and Affiliations

  1. Hot Laboratories Centre, Atomic Energy Authority, 13758, Cairo, (Egypt)

    F. A. Shehata, S. M. Khalifa & H. F. Aly

Authors
  1. F. A. Shehata
    View author publications

    You can also search for this author in PubMed Google Scholar

  2. S. M. Khalifa
    View author publications

    You can also search for this author in PubMed Google Scholar

  3. H. F. Aly
    View author publications

    You can also search for this author in PubMed Google Scholar

Rights and permissions

Reprints and permissions

About this article

Cite this article

Shehata, F.A., Khalifa, S.M. & Aly, H.F. Synergic extraction of trivalent gadolinium, europium and americium radionuclides by 15-crown-5 or 18-crown-6 mixed with thenoyltrifluoroacetone from perchlorate medium. Journal of Radioanalytical and Nuclear Chemistry, Articles 159, 353–361 (1992). https://doi.org/10.1007/BF02040729

Download citation

  • Received:

  • Issue Date:

  • DOI: https://doi.org/10.1007/BF02040729

Keywords

Search

Navigation