Skip to main content
SpringerLink
Log in

Continuous recovery of uranium oxides by electrolysis of M2MoO4-M2Mo2O7-UO2MoO4 melts (M = Li, Na, K, Cs)

  • Inorganic Synthesis and Industrial Inorganic Chemistry
  • Published:
Russian Journal of Applied Chemistry Aims and scope Submit manuscript

Abstract

Effect of the electrolyte composition and of the solvent-salt cation on the oxygen coefficient of the cathodic product (O/U atomic ratio) and basic characteristics of the potentiostatic electrodeposition of uranium dioxide in prolonged recovery of uranium oxides from electrolytes of the system M2MoO4-M2Mo2O7-UO2MoO4 Melts (M = Li, Na, K, Cs) in air was analyzed. A decrease in the UO2MoO4 concentration and accumulation of M2Mo2O7 in the electrolyte in the course of a prolonged electrolysis suppress the solvolysis of uranyl ions and make lower the oxygen coefficient of the cathodic product. Li2MoO4-based melts possessing pronounced oxygenacceptor properties exhibit an anomalous behavior in these experiments. The current efficiency, initial current density, and deposition rate of the product decrease as electrolytes are depleted of uranium. In discussions of numerical data, it is necessary to take into account the formation of lower valence forms of uranium due to the chemical corrosion of the cathodic product, and in the case of melts of the lithium system, the additional cathodic process in which the solvent is reduced.

This is a preview of subscription content, log in via an institution to check access.

Access this article

Log in via an institution

Price excludes VAT (USA)
Tax calculation will be finalised during checkout.

Instant access to the full article PDF.

Similar content being viewed by others

References

  1. Afonichkin, V.K., Komarov, V.E., Khrustova, L.G., and Bove, A.L., Elektrokhimiya, 2006, vol. 46, no. 6, pp. 698–704.

    Google Scholar 

  2. Afonichkin, V.K., Komarov, V.E., and Vakarin, S.V., Elektrokhimiya, 1993, vol. 29, no. 11, pp. 1356–1359.

    CAS  Google Scholar 

  3. Afonichkin, V.K., Komarov, V.E., and Khrustova, L.G., Elektrokhimiya, 2007, vol. 43, no. 8, pp. 921–929.

    Google Scholar 

  4. Afonichkin, V.K., Komarov, V.E., Leont’ev, V.N., and Nekrasova, N.P., Elektrokhimiya, 1996, vol. 32, no. 7, pp. 800–805.

    Google Scholar 

  5. Afonichkin, V.K., Komarov, V.E., Khrustova, L.G., et al., XI konferentsiya po fizicheskoi khimii i elektrokhimii rasplavlennykh i tverdykh elektrolitov, Ekaterinburg, 1998 g. (XI Conf. on Physical Chemistry and Electrochemistry of Molten and Solid Electrolytes, Yekaterinburg, 1998), vol. 1, pp. 73–74.

  6. Komarov, V.E. and Nekrasova, N.P., Elektrokhimiya, 1981, vol. 27, no. 8, pp. 1266–1270.

    Google Scholar 

  7. Schreiber, D., Balazs, B., and Kosak, J., J. Am. Ceram. Soc., 1983, vol. 66, no. 5, pp. 340–346.

    Article  CAS  Google Scholar 

  8. Schreiber, D. and Balazs, B., Phys. Chem. Glasses, 1982, vol. 23, no. 5, pp. 139–146.

    CAS  Google Scholar 

  9. Schreiber, H.D., Balazs, G.B., Jamison, P.L., and Shaffer, A.P., Phys. Chem. Glasses, 1982, vol. 23, no. 5, pp. 147–153.

    CAS  Google Scholar 

  10. Schreiber, D. and Balazs, B., J. Non-Cryst. Solids, 1982, vol. 49, no. 1, pp. 189–200.

    Article  CAS  Google Scholar 

  11. Afonichkin, V.K., Khrustova, L.G., and Semenovykh, V.V., XIII Rossiskaya konferentsiya po fizicheskoi khimii i elektrokhimii rasplavlennykh i tverdykh elektrolitov. Ekaterinburg, 27 sent.-01 okt. 2004 g. (XIII Russian Conf. on Physical Chemistry and Electrochemistry of Molten and Solid Electrolytes, Yekaterinburg, September 27–October 01, 2004), Yekaterinburg, 2004, p. 189.

    Google Scholar 

  12. Afonichkin, V.K., Khrustova, L.G., and Semenovykh, V.V., V seminar SO RAN-UrO RAN “Termodinamika i materialovedenie,” Novosibirsk, 26–28 sent. 2005 g. (V Symp. of Siberian and Ural Branches, Russian Academy of Sciences, “Thermodynamics and Materials Science,” Novosibirsk, September 26–28, 2005), Novosibirsk, 2005, p. 9.

    Google Scholar 

  13. Afonichkin, V.K. and Khrustova, L.G., Abstracts of Papers, Vserossiskaya konferentsiya “Khimiya tverdogo tela i funktsional’nye materially,” Yekaterinburg, 21–24 okt. 2008 g. (All-Russia Conf. “Solid State Chemistry and Functional Materials,” Yekaterinburg, October 21–24, 2008), Yekaterinburg, 2008, p. 21.

    Google Scholar 

  14. Afonichkin, V.K., Komarov, V.E., Khrustova, L.G., and Martem’yanova, Z.S., I Vserossiskaya molodezhnaya nauchnaya konferentsiya po fundamental’nym problemam radiokhimii i atomnoi energetiki. Nizhni Novgorod, 5–8 iyunya 2001 g. (I All-Russia Youth’s Conf. on Fundamental Problems of Radiochemistry and Nuclear Power Engineering, Nizhni Novgorod, June 5–8, 2001), Nizhni Novgorod, 2001, pp. 114–115.

    Google Scholar 

  15. Afonichkin, V.K. and Khrustova, L.G., Nauchno-prakt. konf. “Nauchno-promyshlennaya politika i perspektivy razvitiya Urala i Sibiri,” Ekaterinburg, 19–23 iyunya 2007 g (Scientific Prcatical Conf. “Scientific Industrial Politics and Proapects of Developent of Ural and Siberia), Yekaterinburg, 2007.

    Google Scholar 

  16. Afonichkin, V.K. and Khrustova, L.G., VII Mezhdunarodnaya konferentsiya “Fundamental’nye problemy elektrokhimicheskoi energetiki,” Saratov, 23–27 iyunya 2008 g. (VII Int. Conf. “Fundamental Problems of Electrochemical Power Engineering,” Saratov, June 23–27, 2008), Saratov, 2008, pp. 24–25.

    Google Scholar 

  17. Afonichkin, V.K. and Khrustova, L.G., XII Rossiiskaya konferentsiya “Stroenie i svoistva metallicheskikh i shlakovykh rasplavov,” Yekaterinburg, 22–26 sent. 2008 g (XII Russian Conf. “Structure and Properties of Metallic and Sluggy Melts,” Yekaterinburg, September 22–26, 2008), Yekaterinburg, 2008, pp. 177–180.

    Google Scholar 

  18. Nomure, Y., Kamegashira, N., and Naito, K., J. Cryst. Growth, 1981, vol. 52, pp. 279–284.

    Article  Google Scholar 

  19. Afonichkin, V.K. and Khrustova, L.G., Elektrokhimiya, 2010, vol. 46, no. 6, pp. 693–699.

    Google Scholar 

  20. Afonichkin, V.K., Khrustova, L.G., and Komarov, V.E., XV Rossiskaya konferentsiya po fizicheskoi khimii i elektrokhimii rasplavlennykh i tverdykh elektrolitov, Nal’chik, 13–18 sent. 2010 g. (XV Russian Conf. on Physical Chemistry and Electrochemistry of Molten and Solid Electrolytes, Nal’chik, September 13–18, 2010), Nal’chik, 2010, pp. 277–279.

    Google Scholar 

  21. Advances in Electrochemistry and Electrochemical Engineering, Delahay, P., Ed., New York: Wiley-Interscience, 1961.

    Google Scholar 

  22. Galus, Z., Fundamentals of Electrochemical Analysis, Ellis Horwood, 1994.

    Google Scholar 

  23. Nair, K.R., Wang, E., and Greenblatt, M., J. Solid State Chem., 1984, vol. 55, pp. 193–199.

    Article  CAS  Google Scholar 

  24. Kaliev, K.A., Baraboshkin, A.N., and Zlokazov, V.A., Rasplavlennye i tverdye elektrolity: Trudy Inst. elektrokhimii UNTs AN SSSR (Molten and Solid Electrolytes: Coll. of Works of the Institute of Electrochemistry, Ural Scientific Center, Academy of Sciences of the USSR), Sverdlovsk: Inst. Elektrokhim. UNTs Akad. Nauk SSSR, 1979, issue 28, pp. 39–46.

    Google Scholar 

Download references

Author information

Authors and Affiliations

  1. Institute of High-Temperature Electrochemistry, Ural Branch, Russian Academy of Sciences, Yekaterinburg, Russia

    V. K. Afonichkin, L. G. Khrustova & V. E. Komarov

Authors
  1. V. K. Afonichkin
    View author publications

    You can also search for this author in PubMed Google Scholar

  2. L. G. Khrustova
    View author publications

    You can also search for this author in PubMed Google Scholar

  3. V. E. Komarov
    View author publications

    You can also search for this author in PubMed Google Scholar

Corresponding author

Correspondence to L. G. Khrustova.

Additional information

Original Russian Text © V.K. Afonichkin, L.G. Khrustova, V.E. Komarov, 2013, published in Zhurnal Prikladnoi Khimii, 2013, Vol. 86, No. 2, pp. 147–154.

Rights and permissions

Reprints and permissions

About this article

Cite this article

Afonichkin, V.K., Khrustova, L.G. & Komarov, V.E. Continuous recovery of uranium oxides by electrolysis of M2MoO4-M2Mo2O7-UO2MoO4 melts (M = Li, Na, K, Cs). Russ J Appl Chem 86, 133–140 (2013). https://doi.org/10.1134/S1070427213020018

Download citation

  • Received:

  • Published:

  • Issue Date:

  • DOI: https://doi.org/10.1134/S1070427213020018

Keywords

Search

Navigation