Skip to main content
SpringerLink
Log in

Factors governing the efficiency of dissolution of UO2 ceramic pellets in aqueous solutions of iron nitrate

  • Published:
Radiochemistry Aims and scope

Abstract

Dissolution of ceramic UO2 in aqueous Fe(NO3)3 solutions at different temperatures under the conditions of limited contact with air and in the autoclave mode was studied. In the course of UO2 dissolution at 60–90°C, the U/Fe molar ratio appears to be ∼1, whereas at room temperature (25°C) this value is ∼0.5. By varying the acidity of Fe nitrate solutions at these temperatures, it is possible to increase the U/Fe molar ratio to ∼4 and to obtain uranyl nitrate solutions with simultaneous removal of Fe from the solution in the form of a precipitate of the basic salt, or to perform quantitative dissolution of UO2 under the conditions excluding the formation of such precipitate. In the course of dissolution of ceramic UO2 in Fe(NO3)3 solutions, the appearance or absence of Fe(II) ions, the formation or absence of the precipitate of the Fe basic salt, and variation of solution pH are interrelated and are determined by the process temperature.

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.

Institutional subscriptions

Similar content being viewed by others

References

  1. Pasport federal’noi tselevoi programmy “Yadernye energotekhnologii novogo pokoleniya na period 2010-2015 godov i na perspektivu do 2020 goda” (Passport of the Federal Target Program “Nuclear Power Technologies of New Generation for the Period 2010-2015 and Their Prospects for the Period up to 2020”).

  2. Adamov, E.O. and Orlov, V.V., in Tyazhelye zhidkometallicheskie teplonositeli v yadernykh tekhnologiyakh (Heavy Liquid Metal Coolants in Nuclear Technologies), Obninsk: Fiziko-Energeticheskii Inst., 1999, vol. 1, pp. 25–32.

    Google Scholar 

  3. Poplavskii, V.M., At. Energy, 2004, vol. 96, no. 5, pp. 301–307).

    Article  CAS  Google Scholar 

  4. Reshetnikov, F.G., At. Energy, 2001, vol. 91, no. 6, pp. 998–1002).

    Article  CAS  Google Scholar 

  5. Zilberman, B.Ya., Radiochemistry, 2000, vol. 42, no. 1, pp. 1–14).

    CAS  Google Scholar 

  6. Kulyako, Yu.M., Trofimov, T.I., Malikov, D.A., et al., Radiochemistry, 2010, vol. 52, no. 4, pp. 344–349.

    Article  CAS  Google Scholar 

  7. Kulyako, Yu.M., Perevalov, S.A., Trofimov, T.I., et al., Radiochemistry, 2011, vol. 53, no. 6, pp. 608–611.

    Article  CAS  Google Scholar 

Download references

Author information

Authors and Affiliations

  1. Vernadsky Institute of Geochemistry and Analytical Chemistry, Russian Academy of Sciences, ul. Kosygina 19, Moscow, 119991, Russia

    Yu. M. Kulyako, S. A. Perevalov, T. I. Trofimov, M. D. Samsonov, S. E. Vinokurov, D. A. Malikov & B. F. Myasoedov

Authors
  1. Yu. M. Kulyako
    View author publications

    You can also search for this author in PubMed Google Scholar

  2. S. A. Perevalov
    View author publications

    You can also search for this author in PubMed Google Scholar

  3. T. I. Trofimov
    View author publications

    You can also search for this author in PubMed Google Scholar

  4. M. D. Samsonov
    View author publications

    You can also search for this author in PubMed Google Scholar

  5. S. E. Vinokurov
    View author publications

    You can also search for this author in PubMed Google Scholar

  6. D. A. Malikov
    View author publications

    You can also search for this author in PubMed Google Scholar

  7. B. F. Myasoedov
    View author publications

    You can also search for this author in PubMed Google Scholar

Corresponding author

Correspondence to Yu. M. Kulyako.

Additional information

Original Russian Text © Yu.M. Kulyako, S.A. Perevalov, T.I. Trofimov, M.D. Samsonov, S.E. Vinokurov, D.A. Malikov, B.F. Myasoedov, 2014, published in Radiokhimiya, 2014, Vol. 56, No. 3, pp. 210–213.

Rights and permissions

Reprints and permissions

About this article

Check for updates. Verify currency and authenticity via CrossMark

Cite this article

Kulyako, Y.M., Perevalov, S.A., Trofimov, T.I. et al. Factors governing the efficiency of dissolution of UO2 ceramic pellets in aqueous solutions of iron nitrate. Radiochemistry 56, 247–251 (2014). https://doi.org/10.1134/S1066362214030059

Download citation

  • Received:

  • Published:

  • Issue Date:

  • DOI: https://doi.org/10.1134/S1066362214030059

Keywords

Search

Navigation