Journal of Radioanalytical Chemistry

, Volume 51, Issue 1, pp 27–46 | Cite as

Use of complexones for the extraction separation of rare earth and transplutonium elements with amines

  • A. A. Kopyrin
  • V. D. Murashov
  • V. D. Demidov
  • V. P. Shvedov
Solvent Extraction

Abstract

The extraction distribution and separation of rare earth elements and americium from the concentrated lithium nitrate solution with solutions of tertiary amines in organic solvents has been studied as a function of the composition and structure of complexones of the polyaminepolyacetic acid series by a radioactive tracer method. It has been found that diethylenetriaminepentaacetic acid is suitable for the separation of REE from americium(III). The apparent stability constants for the lanthanide complexes with EDTA and DTPA in concentrated litium nitrate solutions have been obtained by extraction, pH-metric titration and solubility. Using these constants, the optimum conditions of separation have been found and the separation factors of REE calculated. The calculated and experimental values are in good agreement. The optimum conditions for the separation of americium(III) from REE in a wide range of lanthanide and complexone concentrations (10−1–10−6 M) have been determined.

Keywords

DTPA Separation Factor Tertiary Amine Ethylbenzene Americium 

Preview

Unable to display preview. Download preview PDF.

Unable to display preview. Download preview PDF.

References

  1. 1.
    Chemistry of Long-Term Fissionable Elements, A. V. NIKOLAEV (Ed.), Atomizdat, Moscow, 1970.Google Scholar
  2. 2.
    N. M. DYTLOVA, V. Y. TEMTSINA, I. D. KOLPATSOVA, The complexones, Khimiya, Moscow, 1970.Google Scholar
  3. 3.
    V. P. SHVEDOV, A. A. KOPYRIN, V. D. DEMIDOV, Isotopenpraxis, 12 (1976) 429.Google Scholar
  4. 4.
    M. G. KOCHLY—NOTE, CEA, 816 (1967) 381.Google Scholar
  5. 5.
    G. V. KORPUISOV, E. N. PATRUSHEVA, M. S. DOLIDZE, A. E. TRUIBNIKOVA, Radiokhim, 17 (1975) 512.Google Scholar
  6. 6.
    D. KUIPER, in Solvent Extraction Chemistry of Metals, H. H. C. McKAY (Ed.), London, 1966, p. 420.Google Scholar
  7. 7.
    J. BAUER, F. LINSTRUM, U. S. Patent Of. No. 3323857, June, 1967.Google Scholar
  8. 8.
    G. WERNER, R. ALTENDORF, H. HOLZAPFED, Z. Practische Chemie, 34 (1966) 201.CrossRefGoogle Scholar
  9. 9.
    F. L. MOORE, Anal. Chem., 37 (1965) 1235.CrossRefGoogle Scholar
  10. 10.
    E. G. CHUDINOV, S. V. PIROZHOV, Influence of the insalting cation on the separation of trivalent actinide elements, Reprint IAE-1904, Moscow, 1969.Google Scholar
  11. 11.
    A. A. KOPYRIN, M. Ph. Thesis, Leningrad, 1971.Google Scholar
  12. 12.
    Y. MARCUS, F. MELSON, Phys. Chem., 63 (1959) 77.CrossRefGoogle Scholar
  13. 13.
    T. CORRADO, Anal. Chem., 34 (1962) 1556.CrossRefGoogle Scholar
  14. 14.
    V. P. SHVEDOV, A. A. KOPYRIN, I. K. STEPANOV, Radiokhim., 14 (1972) 755.Google Scholar
  15. 15.
    M. I. KABACHNIK, T. Y. MEDVED, N. M. DYTLOVA, M. V. RUDOMINO, Usp. Khim. 43 (1974) 1554.Google Scholar

Copyright information

© Akadémiai Kiadó 1979

Authors and Affiliations

  • A. A. Kopyrin
    • 1
  • V. D. Murashov
    • 1
  • V. D. Demidov
    • 1
  • V. P. Shvedov
    • 1
  1. 1.Lensovet Institute of TechnologyLeningrad(USSR)

Personalised recommendations