Abstract
The behavior of impurities of rare-earth elements in the fluorination of UO2 with bromine trifluoride is studied by the radioactive tracer method using152Eu radionuclide. It is demonstrated that uranium is completely removed as hexafluoride, whereas impurities of rare-earth elements quantitatively remain in the crucible because of the nonvolatility of their fluorides. Based on this fact, the concentrations of rare-earth elements in UO2 is determined. Results of analysis are in agreement with the data that were obtained using the conventional technique for the extraction of rare-earth elements from UO2
Similar content being viewed by others
References
Hoekstra, H.R. and Katz, J.J.,Anal. Chem., 1963, vol. 25, no. 11, p. 1608.
Martin, F.S. and Miles, G.L.,Chemical Processing of Nuclear Fuel, New York, 1960. Translated under the titleKhimicheskaya pererabotka yadernogo topliva, Moscow: Gos. Nauch.-Tekh. Izd. Chern. Tsvet. Met., 1961, p. 197.
Emeleus, H.J., Maddock, A.G., Miles, G.L., and Sharpe, A.G.,J. Chem. Soc., 1948, vol. 11, p. 1991.
Mit’kin, V.N. and Vasil’eva, A.A.,Zh. Anal. Khim., 1989, vol. 44, no. 9, p. 1589.
Zemskov, S.V., Mit’kin, V.N., Torgov, V.G., and Glinskaya, A.A.,Zh. Anal. Khim., 1983, vol. 38, no. 1, p. 38.
Author information
Authors and Affiliations
Rights and permissions
About this article
Cite this article
Mit’kin, V.N., Shavinskii, B.M. & Kamelin, A.I. Extraction of impurities of rare-earth elements from uranium dioxide using bromine trifluoride for their preconcentration and analytical determination. J Anal Chem 55, 255–257 (2000). https://doi.org/10.1007/BF02757209
Received:
Revised:
Issue Date:
DOI: https://doi.org/10.1007/BF02757209