Skip to main content
SpringerLink
Log in

Thermodynamic Simulation of the Phase Diagram of the Cu2O–Na2O–K2O System

  • Published:
Moscow University Chemistry Bulletin Aims and scope

Abstract

Thermodynamic simulation of phase equilibria is carried out, allowing us to calculate the liquidus lines for the phase diagrams of the Cu2O–Na2O, Cu2O–K2O, and K2O–Na2O oxide binary systems, and also the liquidus surface of the Cu2O–Na2O–K2O ternary system. In the course of the work, the values of the model parameters used to calculate the activity of the oxide melts of the investigated systems are determined. The values of the activity of copper oxide and sodium oxide in the Cu2O–Na2O system for a temperature of 1250°C are calculated. The activity data are characterized by negative deviations from Raoult’s law. During the simulation, the enthalpy and entropy of the formation of a KNaO compound from the liquid components are estimated. According to the calculations, the liquidus surface of the phase diagram of the Cu2O–Na2O–K2O ternary system has two points of invariant equilibria.

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. Kurdyumov, A.V., Pikunov, M.V., Chursin, V.M., and Bibikov, E.L., Proizvodstvo otlivok iz splavov tsvetnykh metallov (Manufacture of Castings from Alloys of Nonferrous Metals), Moscow: Mosk. Inst. Stali Splavov, 1986.

    Google Scholar 

  2. Takeda, Y., Riveros, G., Park, Y.-J., and Yazawa, A., Trans. Jpn. Inst. Met., 1986, vol. 27, p.3.

    Article  Google Scholar 

  3. Riveros, G., Park, Y.-J., Takeda, Y., and Yazawa, A., Trans. Jpn. Inst. Met., 1987, vol. 28, p.3.

    Article  Google Scholar 

  4. Cui, Y., Matsuura, H., Hamano, T., and Tsukihashi, F., ISIJ Int., 2008, vol. 48, p.3.

    Google Scholar 

  5. Mikhailov, G.G., Leonovich, B.I., and Kuznetsov, Yu.S., Termodinamika metallurgicheskikh protsessov i sistem (Thermodynamics of Metallurgical Processes and Systems), Moscow: Mosk. Inst. Stali Splavov, 2009.

    Google Scholar 

  6. Trofimov, E.A. and Mikhailov, G.G., Russ. J. Non-Ferrous Met., 2011, vol. 52, p.3.

    Article  Google Scholar 

  7. Samoilova, O.V., Makrovets, L.A., Mikhailov, G.G., and Trofimov, E.A., Russ. J. Non-Ferrous Met., 2012, vol. 53, p.3.

    Article  Google Scholar 

  8. Mikhailov, G.G., Trofimov, E.A., and Sidorenko, A.Yu., Fazovye ravnovesiya v mnogokomponentnykh sistemakh s zhidkimi tsvetnymi metallami (Phase Equilibria in Multicomponent Systems with Liquid Nonferrous Metals), Moscow: Mosk. Inst. Stali Splavov, 2014.

    Google Scholar 

  9. Khimicheskaya entsiklopediya (Chemical Encyclopedia), Knunyants, I.L., Ed., Moscow: Sov. Entsiklopedia, 1990, vol.2.

  10. Wriedt, H.A., Bull. Alloy Phase Diagrams, 1987, vol. 8, p.3.

    Article  Google Scholar 

  11. Kubaschewski, O. and Alcock, C.B., Metallurgical Thermochemistry, Oxford: Pergamon, 1979.

    Google Scholar 

  12. Natola, F. and Touzain, Ph., Can. J. Chem., 1970, vol. 48, p. 3.

    Article  Google Scholar 

  13. Sangster, J., J. Phase Equilib. Diffus., 2013, vol. 34, p.3.

    Article  CAS  Google Scholar 

  14. Fiziko-khimicheskie svoistva okislov (Physicochemical Properties of Oxides), Samsonov, G.V., Ed., Moscow: Metallurgiya, 1969.

  15. Coursol, P., Pelton, A.D., and Zamalloa, M., Metall. Mater. Trans. B, 2003, vol. 34, p.3.

    Article  Google Scholar 

  16. Hoppe, R., Hestermann, K., and Schenk, F., Z. Anorg. Allg. Chem., 1969, vol. 367, p.3.

    Article  Google Scholar 

  17. Lazarev, V.B., Zakharov, A.A., and Shaplygin, I.S., Zh. Neorg. Khim., 1979, vol. 24, no. 5, p. 1151.

    CAS  Google Scholar 

  18. Hestermann, K. and Hoppe, R., Z. Anorg. Allg. Chem., 1968, vol. 360, p.3.

    Article  Google Scholar 

  19. Barker, M.G. and Dawson, A.P., J. Less-Common Met., 1979, vol. 64, p.3.

    Article  Google Scholar 

  20. Hoppe, R. and Losert, W., Z. Anorg. Allg. Chem., 1983, vol. 504, p.3.

    Article  Google Scholar 

  21. Emsley, J., The Elements, New York: Oxford Univ. Press, 1991, 2nd ed.

    Google Scholar 

  22. Zintl, E., Harder, A., and Dauth, B., Z. Elektrochem. Angew. Phys. Chem., 1934, vol. 40, p.3.

    Google Scholar 

  23. Restori, R. and Schwarzenbach, D., Acta Crystallogr., 1986, vol. 42, p.3.

    Article  Google Scholar 

  24. Touzain, Ph., Brisse, F., and Caillet, M., Can. J. Chem., 1970, vol. 48, p. 3.

    Article  Google Scholar 

  25. Sabrowsky, H. and Schröer, U., Z. Naturforsch., B: Anorg. Chem., Org. Chem., 1982, vol. 37, p. 3.

    Article  Google Scholar 

Download references

Author information

Authors and Affiliations

  1. South Ural State University, Chelyabinsk, 454080, Russia

    O. V. Samoilova, L. A. Makrovets & E. A. Trofimov

Authors
  1. O. V. Samoilova
    View author publications

    You can also search for this author in PubMed Google Scholar

  2. L. A. Makrovets
    View author publications

    You can also search for this author in PubMed Google Scholar

  3. E. A. Trofimov
    View author publications

    You can also search for this author in PubMed Google Scholar

Corresponding author

Correspondence to O. V. Samoilova.

Additional information

Original Russian Text © O.V. Samoilova, L.A. Makrovets, E.A. Trofimov, 2018, published in Vestnik Moskovskogo Universiteta, Seriya 2: Khimiya, 2018, No. 3, pp. 196–204.

About this article

Check for updates. Verify currency and authenticity via CrossMark

Cite this article

Samoilova, O.V., Makrovets, L.A. & Trofimov, E.A. Thermodynamic Simulation of the Phase Diagram of the Cu2O–Na2O–K2O System. Moscow Univ. Chem. Bull. 73, 105–110 (2018). https://doi.org/10.3103/S0027131418030057

Download citation

  • Received:

  • Published:

  • Issue Date:

  • DOI: https://doi.org/10.3103/S0027131418030057

Keywords

Search

Navigation