Sequential separation of neptunium, plutonium, americium and curium using coprecipitation with bismuth phosphate

  • T. Kimura


The reaction of neptunium, plutonium and americium with oxidizing or reducing agents in phosphoric acid solution has been studied to design a separation procedure of the actinide elements using coprecipitation with bismuth phosphate. In the presence of uranium, successive separation of neptunium, plutonium, americium and curium was accomplished by combining the coprecipitation and redox reaction of the elements. The coprecipitation behaviour of fission products during the course of sequential separation of the actinide elements on bismuth phosphate was also discussed.


Phosphate Inorganic Chemistry Uranium Acid Solution Bismuth 
These keywords were added by machine and not by the authors. This process is experimental and the keywords may be updated as the learning algorithm improves.


Unable to display preview. Download preview PDF.

Unable to display preview. Download preview PDF.


  1. 1.
    T. KIMURA, J. Radioanal. Nucl. Chem., 139 (1990) 297.Google Scholar
  2. 2.
    M. S. MILYUKOVA, M. N. LITVINA, B. F. MYASOEDOV, Radiokhimiya, 19 (1977) 349.Google Scholar
  3. 3.
    M. S. MILYUKOVA, M. N. LITVINA, B. F. MYASOEDOV, Radiochem. Radioanal. Letters, 42 (1980) 21.Google Scholar
  4. 4.
    L. B. MAGNUSSON, J. C. HINDMAN, T. J. LACHAPELLE, Chemistry of Neptunium. Kinetics and Mechanisms of Aqueous Oxidation-Reduction Reactions of Neptunium. In: The Transuranium Elements, Chap. 15.11, Div. IV (14B), National Nuclear Energy Series, McGraw Hill, New York, 1949.Google Scholar
  5. 5.
    K. NAITO, T. SUZUKI, J. Phys. Chem., 66 (1962) 989.Google Scholar
  6. 6.
    F. J. HURST, D. J. CROUSE, K. B. BROWN, Report ORNL-TM-2522, 1961.Google Scholar
  7. 7.
    H. POLKOWSKA-MOTRENKO, R. DYBCZYNSKI, J. Chromatogr., 88 (1974) 387.Google Scholar
  8. 8.
    H. POLKOWSKA-MOTRENKO, R. DYBCZYNSKI, Chem. Anal. (Warsaw) 22 (1977) 1021.Google Scholar
  9. 9.
    W. M. LATIMER, The Oxidation States of the Elements and Their Potentials in Aqueous Solutions, 2nd. ed., Prentice-Hall, Englewood Cliffs, 1952.Google Scholar

Copyright information

© Akadémiai Kiadó 1990

Authors and Affiliations

  • T. Kimura
    • 1
  1. 1.Department of ChemistryJapan Atomic Energy Research InstituteTokai-mura, Ibaraki-ken(Japan)

Personalised recommendations