Advertisement

Radiochemistry

, Volume 61, Issue 1, pp 1–4 | Cite as

Preparation of Powdered Uranium Oxides by Denitration of Nitric Acid Uranium Solutions Using UHF Radiation

  • Yu. M. KulyakoEmail author
  • T. I. Trofimov
  • K. S. Pilyushenko
  • D. A. Malikov
  • S. A. Perevalov
  • S. E. Vinokurov
  • B. V. Savel’ev
  • B. F. Myasoedov
Article
  • 2 Downloads

Abstract

Denitration of nitric acid uranium solutions under the action of UHF radiation in ambient and reducing atmosphere in the presence of organic reductants containing amino groups (carbohydrazide, acetohydroxamic acid, aminoacetic acid, hydrazine nitrate) and without them to obtain a mixture of uranium oxides was studied. The conditions of thermal transformation of the initially formed mixture of uranium oxides into uranium dioxide powder under the action of UHF radiation were determined. The characteristics of UO2 powders meet the requirements of TU (Technical Specification) 95414–2005 to ceramic-grade powders.

Keywords

uranium uranium dioxide uranyl nitrate actinides organic reductants with amino groups denitration UHF radiation nuclear fuel 

Preview

Unable to display preview. Download preview PDF.

Unable to display preview. Download preview PDF.

References

  1. 1.
    Kulyako, Yu. M., Trofimov, T.I., Samsonov, M.D., et al., Radiochemistry, 2011, vol. 53, no. 6, pp. 604–607.CrossRefGoogle Scholar
  2. 2.
    Kulyako, Yu.M., Trofimov, T.I., Perevalov, S.A., et al., Radiochemistry, 2015, vol. 57, no. 3, pp. 251–254.CrossRefGoogle Scholar
  3. 3.
    Kulyako, Yu.M., Trofimov, T.I., Samsonov, M.D., et al., Radiochemistry, 2015, vol. 57, no. 2, pp. 127–130.CrossRefGoogle Scholar
  4. 4.
    Myasoedov, B.F., Kalmykov, S.N., Kulyako, Yu.M., and Vinokurov, S.E., Geochem. Int., 2016, vol. 54, no. 13, pp. 1157–1168.CrossRefGoogle Scholar
  5. 5.
    Koizumi, M., Ohtsuka, K., Isagawa, H., et al., Nucl. Technol., 1983, vol. 61, no. 1, pp. 55–70.CrossRefGoogle Scholar
  6. 6.
    Sato, H. and Morisue, T., Microwave Heating Denitration Apparatus: Report of Rockwell International Corp., Golden, CO (USA), Rocky Flats Plant, Jan. 1983; INIS Atomindex, 14-754294.Google Scholar
  7. 7.
    Bao, W., Chang, V., and Guo, Z., At. Energy Sci. Technol, 1995, vol. 29, pp. 268–274.Google Scholar
  8. 8.
    Takahashi, Y., Patent US 5 589 140, Dec. 31, 1996.Google Scholar
  9. 9.
    Gil’bo, K.E., Preparation of uranium oxides and mixed uranium-cerium oxides by reducing plasma-chemical denitration and their composition and properties, Cand. Sci. (Chem.) Dissertation, St. Petersburg: Khlopin Radium Inst., 2001.Google Scholar
  10. 10.
    TU (Technical Specification) 95414–2005: Powder of Ceramic-Grade Uranium Dioxide with Less than 5.0% Content of Uranium-235 Isotope: Technical Specification.Google Scholar

Copyright information

© Pleiades Publishing, Inc. 2019

Authors and Affiliations

  • Yu. M. Kulyako
    • 1
    Email author
  • T. I. Trofimov
    • 1
  • K. S. Pilyushenko
    • 1
  • D. A. Malikov
    • 1
  • S. A. Perevalov
    • 1
  • S. E. Vinokurov
    • 1
  • B. V. Savel’ev
    • 1
  • B. F. Myasoedov
    • 1
  1. 1.Vernadsky Institute of Geochemistry and Analytical ChemistryRussian Academy of SciencesMoscowRussia

Personalised recommendations