Advertisement

Journal of Radioanalytical and Nuclear Chemistry

, Volume 129, Issue 2, pp 265–272 | Cite as

Separation of cesium from intermediate level liquid radioactive waste by solvent extraction with antioxidants

  • G. Gulis
Article

Abstract

The intermediate level liquid radioactive wastes (RAW) isussed from nuclear power plants have high salt contents ca 200 g·dm−3, the pH of liquid RAW being 12.5–13.7. A convenient method for separation of cesium under these conditions is solvent extraction with substituted phenols. For this purpose weere tested antioxidants produced in Czechoslovakia: AO 2246 [2,2-methylene-bis-(4-methyl-6-tertbutyl)phenol]; AO 4 [2-tertbutyl-4-(2-phenylpropyl)phenol]; AO 4K [2,6-ditertbuty-4-methylphenol]; AO 301 [2,2-methylene-bis-(4-{2-phenylpropyl}-6-tert-butyl)phenol]; and one antioxidant imporoted from Japan—NOCRAC 2246. This antioxidant is equivalent to AO 2246. After the first experiment it was found that the extraction efficiency for antioxidants AO 4 and Ao 301 is very low and the following experiments were made with AO 2246 (NOCRAC 2246) and AO 4K. Some effects on extracton as, pH of water phase, influence of diluent, influence of concentration of antioxidants, extraction time, were studied. The best results gave antioxidant NOCRAC 2246 in nitrobenzene, the extraction efficiency was 92.3% with pH 13.23.

Keywords

Japan Phenol Power Plant Cesium Solvent Extraction 
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.

Preview

Unable to display preview. Download preview PDF.

Unable to display preview. Download preview PDF.

References

  1. 1.
    J. STARY, M. KYRS, M. MARHOL, Separační metody v radiochemii, Academia Praha, 1975.Google Scholar
  2. 2.
    R. A. ZINGARO, C. F. COLEMAN, J. Inorg. Nucl. Chem., 29 (1967) 1287.Google Scholar
  3. 3.
    D. E. HORNER, D. J. CROUSE, K. B. BROWN, B. WEAVER, Nucl. Sci., Eng., 17 (1963) 234Google Scholar
  4. 4.
    C. KONECNY, N. SISTKOÁ, Coll. Czechoslov. Chem. Commun., 32 (1967) 1938.Google Scholar
  5. 5.
    M. KOYAMA, O. TPCHIYAMA, T. FINAGA, Bull. Chem. Soc. Japan 44 (1971) 1591.Google Scholar
  6. 6.
    B. Z. EGAN, R. A. ZINGARO, B. M. BENJAMIN, Inorg. Chem., 4 (1965) 1055.Google Scholar
  7. 7.
    G. GULIŠ, J. TIMUĹÁK, J. Radioanal. Nucl. Chem., 101 (1986) 21.Google Scholar

Copyright information

© Akadémiai Kiadó 1989

Authors and Affiliations

  • G. Gulis
    • 1
  1. 1.Nuclear Power Plants Research InstituteTrnava(Czechoslovakia)

Personalised recommendations