Abstract
The fate of Fe, Co, Y, and Ce impurities is determined in the process of recrystallization of zirconium oxychloride and in its subsequent fluorination with aqueous hydrofluoric acid to ZrF4 · H2O. Techniques of gamma ray spectrometry were used to follow radioisotopes introduced at critical steps in the process. All impurities remained in the recrystallization liquor. The liquor and its associated impurities, which is retained on the crystals, can be displaced by acid washing. In fluorination, Fe and Co are rejected while Y and Ce are retained and cannot be removed by washing.
Similar content being viewed by others
References
P. W. France, S.F. Carter, M. W. Moore, and J. R. Williams, Proc. SPIE-Int. Soc. Opt. Eng. (Infrared Optical Materials and Fibers IV) 618, 51–57 (1986).
J. A. Sommers and V. Q. Perkins, Mater. Sci. Forum 32–33, 629–634 (1988).
C. F. Fisher, D. C. Tran, P. Hart, and G. H. Sigel, Jr., Mater. Sci. Forum 5, 51–58 (1985).
K. Kobayashi, Mater. Sci. Forum 32–33, 75–80 (1988).
P. H. Klein, P. E. R. Nordquist, and A. Singer, Proc. SPIE-Int. Soc. Opt. Eng. (Infrared Optical Materials and Fibers III) 484, 90–92 (1984).
S. Mitachi, Y. Terunuma, Y. Ohishi, and S. Takahashi, J. Lightwave TechnoL LT-2 (5), 587–592 (1984).
Author information
Authors and Affiliations
Rights and permissions
About this article
Cite this article
Sommers, J.A., Fahey, J.V., Ewing, K.J. et al. The fate of selected impurities in the recrystallization of zirconium oxychloride and in its conversion to zirconium tetrafluoride. Journal of Materials Research 5, 392–396 (1990). https://doi.org/10.1557/JMR.1990.0392
Received:
Accepted:
Published:
Issue Date:
DOI: https://doi.org/10.1557/JMR.1990.0392