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Reaction stoichiometry for coextraction of technetium(VII) with uranium(VI) by CMPO

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Abstract

The coextraction equilibrium of technetium(VII) and uranium(VI) from nictric acid solution was studied in a system involvingn-octyl(phenyl)-N,N-diisobutylcarbamoylmethyl phosphine oxide (CMPO) in decalin. Stoichiometry of technetium, uranium and CMPO in the Tc-U-CMPO complex was obtained from the distribution data by slope analysis. The results indicated that the enhanced extraction of technetium was caused by the formation of UO2NO3TcO4·nCMPO (wheren=2 and/or 3). It was found that this coextraction of technetium with uranium was well explained by using ion exchange reaction between UO2(NO3)2·2CMPO complex and TcO −4 .

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References

  1. F. MACÁŠEK, Radiochem. Radioanal. Letters, 22 (1975) 175.

    Google Scholar 

  2. K. H. LIESER, A. KRUGER, R. N. SINGH, Radiochim. Acta, 28 (1981) 97.

    Google Scholar 

  3. T. N. JASSIM, J. O. LILJENZIN, R. LUNDQVIST, G. PERSSON, Solvent Extr. Ion Exch., 2 (1984) 405.

    Google Scholar 

  4. D. J. PRUETT, Report ORNL/TM-8668, Oak Ridge National Laboratory, December 1984.

  5. D. J. PETT, Trans. Am. Nucl. Soc., 39 (1981) 144.

    Google Scholar 

  6. K. H. LIESER, R. N. SINGH, Radiochim. Acta, 32 (1983) 203.

    Google Scholar 

  7. T. N. JASSIM, J. O. LILJENZIN, G. PERSSON Radiochim. Acta, 33 (1983) 163.

    Google Scholar 

  8. B. KANELLAKOPULOS, P. KONIG, Radiochim. Acta, 33 (1983) 169.

    Google Scholar 

  9. Z. KOLARIK, P. DRESSLER, Solvent Extr. Ion Exch., 7 (1989) 625.

    Google Scholar 

  10. S. TACHIMORI, S. SUZUKI, Proc. Symp. Solvent Extraction, 1992, Japanese Association of Solvent Extraction, Tokyo, 1992, p. 75.

    Google Scholar 

  11. M. TAKEUCHI, S. TANAKA, M. YAMAWAKI, S. TACHIMORI, Solvent Extr. Ion Exch., 13 (1994).

  12. M. TAKEUCHI, S. TANAKA, M. YAMAWAKI, Radiochim. Acta, 63 (1993) 97.

    Google Scholar 

  13. E. P. HORWITZ, H. DIAMOND, K. A. MARTIN, Solvent Extr. Ion Exch., 5 (1987) 447.

    Google Scholar 

  14. W. W. SCHULZ, E. P. HORWITZ, Sep. Sci. Technol., 23 (1988) 1191.

    Google Scholar 

  15. W. ROBEL, Complexes of Uranium with Inorganic Chemistry, in: Gmelin Handbook of Inorganic Chemistry, 8th ed., U. Suppl. Vol. D1, Springer-Verlag, Berlin-Heidelberg, New York, Tokyo, 1984, p. 162.

    Google Scholar 

  16. D. J. CHAIKO, P.-K. TSE, G. F. VANDEGRIFT, Report ANL/CONF-890215-4, Argonne National Laboratory, Nobermber 1988.

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Authors and Affiliations

  1. Nuclear Engineering Research Laboratory, The University of Tokyo, Tokai-mura, 319-11, Ibaraki-ken, Japan

    M. Takeuchi, S. Tanaka & M. Yamawaki

  2. Department of Fuel Cycle Safety Research, Japan Atomic Energy Research Institute, Tokai-mura, 319-11, Ibaraki-ken, Japan

    S. Tachimori

Authors
  1. M. Takeuchi
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  2. S. Tanaka
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  3. M. Yamawaki
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  4. S. Tachimori
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Takeuchi, M., Tanaka, S., Yamawaki, M. et al. Reaction stoichiometry for coextraction of technetium(VII) with uranium(VI) by CMPO. Journal of Radioanalytical and Nuclear Chemistry Articles 191, 189–199 (1995). https://doi.org/10.1007/BF02035997

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  • DOI: https://doi.org/10.1007/BF02035997

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