Skip to main content
SpringerLink
Log in

Calcium Reduction of Zirconium Oxide Compounds

  • Published:
Inorganic Materials Aims and scope

Abstract

We have determined the adiabatic temperature of the calcium reduction of ZrO2 and CaZrO3 (1525 and 1040 K, respectively) and the reaction onset temperature. In a mixture of reagents under an argon atmosphere in a reactor, it is about 1123 K and is determined by the calcium melting onset. If calcium particles with CaCl2 film on their surface are used as a reducing agent, reduction begins at a temperature of 1023 K in an argon atmosphere and at 973 K in vacuum. By reduction for 3 h at a temperature of 1023 K, we have obtained zirconium powder containing 0.36% oxygen and having a specific surface area of 0.35 m2/g.

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

Fig. 1.
Fig. 2.
Fig. 3.

Similar content being viewed by others

REFERENCES

  1. Zelikman, A.N. and Korshunov, B.G., Metallurgiya redkikh metallov (Metallurgy of Rare Metals), Moscow: Metallurgiya, 1991.

  2. Vaks, A.Sh., Pepelyaeva, E.A., and Vedyashkina, L.A., Preparation of zirconium via reduction of potassium fluorozirconate with metallic sodium, in Sbornik nauchnykh trudov Giredmet (1931–1956 gg.) (Collection of Giredmet’s Scientific Papers, 1931–1956), vol. 1: Tekhnologiya (Technology), Moscow: Metallurgizdat, 1959, pp. 518–519.

  3. Orlov, V.M. and Fedorova, L.A., Preparation of zirconium powder from potassium fluorozirconate by sodium reduction, Khim. Tekhnol., 2004, no. 7, pp. 26–29.

  4. Orlov, V.M., Fedorova, L.A., Kalinnikov, V.T., et al., Zirconium powder production via sodium reduction, Tsvetn. Met., 2012, no. 8, pp. 72–76.

  5. Abdelkader, A.M. and El-Kashi, E., Calciothermic reduction of zirconium oxide in molten CaCl2, ISIJ Int., 2007, vol. 47, no. 1, pp. 25–31.

    Article  CAS  Google Scholar 

  6. Trusov, B.G., TERRA software suite for modeling phase and chemical equilibria in plasma chemical systems, 4 Mezhdunarodnyi simpozium po teoreticheskoi i prikladnoi plazmokhimii (4th Int. Symp. on Theoretical and Applied Plasma Chemistry), Ivanovo, 2005. http://main.isuct.ru/files/konf/ISTAPC2005/proc/2-11.pdf. Cited June 6, 2019.

  7. Orlov, V.M. and Kryzhanov, M.V., Thermodynamic modeling of the magnesiothermic reduction of magnesium and lithium tantalates, Inorg. Mater., 2015, vol. 51, no. 6, pp. 618–622.

    Article  CAS  Google Scholar 

  8. Orlov, V.M. and Kryzhanov, M.V., Production of tantalum nanopowders by magnesium reduction of tantalates, Russ. Metall. (Engl. Transl.), 2015, no. 4, pp. 590–596.

  9. Volkov, A.I. and Zharskii, I.M., Bol’shoi khimicheskii spravochnik (Unabridged Handbook of Chemistry), Minsk: Sovremennaya Shkola, 2005.

  10. Orlov, V.M. and Sukhorukov, V.V., Magnesium-thermal preparation of niobium powders, Russ. Metall. (Engl. Transl.), 2010, no. 3, pp. 168–173.

  11. Haas, H., Bartmann, U., Komeya, T., and Sato, N., RF Patent 2 397 843, Byull. Izobret., 2010, no. 24.

  12. Orlov, V.M., Kryzhanov, M.V., Knyazeva, A.I., and Osaulenko, R.N., Niobium powders of mesoporous structure, Prot. Met. Phys. Chem. Surf., 2018, vol. 54, no. 5, pp. 782–787.

    Article  CAS  Google Scholar 

  13. Orlov, V.M. and Kolosov, V.N., Magnesiothermic reduction of tungsten and molybdenum oxide compounds, Dokl. Chem., 2016, vol. 468, no. 1, pp. 162–166.

    Article  CAS  Google Scholar 

Download references

Author information

Authors and Affiliations

  1. Tananaev Institute of Chemistry and Technology of Rare Elements and Minerals (separate subdivision), Kola Scientific Center Federal Research Center, Russian Academy of Sciences, Akademgorodok 26a, 184209, Apatity, Murmansk oblast, Russia

    V. M. Orlov & M. V. Kryzhanov

Authors
  1. V. M. Orlov
    View author publications

    You can also search for this author in PubMed Google Scholar

  2. M. V. Kryzhanov
    View author publications

    You can also search for this author in PubMed Google Scholar

Corresponding author

Correspondence to V. M. Orlov.

Additional information

Translated by O. Tsarev

Rights and permissions

Reprints and permissions

About this article

Check for updates. Verify currency and authenticity via CrossMark

Cite this article

Orlov, V.M., Kryzhanov, M.V. Calcium Reduction of Zirconium Oxide Compounds. Inorg Mater 56, 734–738 (2020). https://doi.org/10.1134/S0020168520070122

Download citation

  • Received:

  • Revised:

  • Accepted:

  • Published:

  • Issue Date:

  • DOI: https://doi.org/10.1134/S0020168520070122

Keywords:

Search

Navigation