Journal of Radioanalytical and Nuclear Chemistry

, Volume 163, Issue 1, pp 29–36 | Cite as

Application of amine extraction to the production of pure zirconium salts

  • D. Schrötterová
  • P. Nekovář
  • M. Mrnka
  • M. Bouša
Article

Abstract

Our aim was to discover a method of separating zirconium(IV) and uranium(VI) from solutions. It is known that Zr(IV) and U(VI) are effectively extracted by tertiary amines from weak acidic sulfate solutions but the possibility of extraction decreases with increasing acidity. The transition from tertiary amine to primary amine Primene JMT enables the extraction of Zr also from more acidic solution. If both Zr and U are present in an aqueous solution, Zr is extracted preferentially and only the free part of the amine can convert uranium to an extract. The separation described below was carried out by preferentially stripping zirconium from the organic phase. The application of nitrate solution (2M HNO3) to eliminate Zr from the solvent was tested. This method does not demand any special regeneration of the extraction agent and the amine nitrate, formed in the organic phase, can be used for further extraction of Zr without modification. Using this method of separation, a solution for producing pure ZrOCl2·8H2O was obtained.

Keywords

Zirconium Uranium Organic Phase Primary Amine Nitrate Solution 

Preview

Unable to display preview. Download preview PDF.

Unable to display preview. Download preview PDF.

References

  1. 1.
    C. F. COLEMAN, K. B. BROWN, J. G. MOORE, D. J. CROUSE, Ind. Eng. Chem., 50 (1958) 1756.CrossRefGoogle Scholar
  2. 2.
    G. A. YAGODIN, A. M. CHEKMAREV, L. M. VLADIMIROVA, Zh. Neorg Khim., 14 (1969) 1603.Google Scholar
  3. 3.
    T. SATO, H. WATANABE, J. Inorg. Nucl. Chem., 36 (1974) 2585.CrossRefGoogle Scholar
  4. 4.
    A. M. CHEKMAREV, G. A. YAGODIN, Tr. MCHTI, 89 (1975) 33.Google Scholar
  5. 5.
    Z. MALEK, D. SCHRÖTTEROVÁ, V. JEDINAKOVA, M. MRNKA, J. CELEDA, Proc. Int. Solv. Extr. Conf. ISEC '74, Lyon, 1974.Google Scholar
  6. 6.
    G. A. YAGODIN, A. M. CHEKMAREV, S. N. DMITRIEV, M. A. SARUCHANOV, Zh. Neorg. Khim., 27 (1982) 448.Google Scholar
  7. 7.
    J. HALA, J. Inorg. Nucl. Chem., 29 (1967) 197.Google Scholar
  8. 8.
    J. HALA, J. Inorg. Nucl. Chem., 29 (1967) 1777.CrossRefGoogle Scholar
  9. 9.
    F. L. MOORE, Anal. Chem., 29 (1957) 1661.Google Scholar
  10. 10.
    I. S. EL-YAMANI, M. Y. FARAH, F. A. A. EL-ALEIM, Radiochem. Radioanal. Lett., 33 (1978) 345.Google Scholar
  11. 11.
    I. S. EL-YAMANI, M. Y. FARAH, F. A. A. EL-ALEIM, Talanta, 25 (1978) 523.CrossRefGoogle Scholar
  12. 12.
    D. SCHRÖTTEROVÁ, P. NEKOVÁR, M. MRNKA, J. Radioanal. Nucl. Chem., 150 (1991) 325.Google Scholar
  13. 13.
    D. SCHRÖTTEROVÁ, P. NEKOVÁR, M. MRNKA, Solv. Extr. Ion Exch., 10 (1992) 231.Google Scholar
  14. 14.
    T. SATO, H. WATANABE, Sep.Sci. Technol., 17 (1982) 625.Google Scholar
  15. 15.
    D. J. MACDONALD, H. G. HELEN, US Patent 4, 381, 287 Apr. 26, 1983.Google Scholar
  16. 16.
    J. BRITO, E. L. M. CONCEICAO, Proc. Congr. Cammes, 2 (1985) 522.Google Scholar
  17. 17.
    R. E. TREYBAL, Liquid Extraction, McGraw-Hill Book Company, 1963.Google Scholar

Copyright information

© Akadémiai Kiadó 1992

Authors and Affiliations

  • D. Schrötterová
    • 1
  • P. Nekovář
    • 1
  • M. Mrnka
    • 1
  • M. Bouša
    • 1
  1. 1.Prague Institute of Chemical TechnologyPrague(Czecho-Slovakia)

Personalised recommendations