Skip to main content
SpringerLink
Log in

Improving the processing of steelmaking waste. Part 1. Thermodynamic analysis

  • Published:
Steel in Translation Aims and scope

Abstract

New approaches are required in the industrial processing of tailings slag from steelmaking. It has been shown in recent years that slag may be processed to obtain not only construction materials but also metal suitable for industrial use. In the present work, we study the expediency of reducing steelmaking slags as to obtain metallic and oxide phases for use in steelmaking and the construction industry. In particular, we consider slag from the tailings at Zlatoust Metallurgical Plant. FactSage software (version 6.4) is used for thermodynamic modeling of high-temperature slag reduction. Three slag compositions are considered, with 5, 10, and 15 wt % FeO. Modeling is undertaken for temperatures at intervals of 5°C in the range 750–1650°C, at a gas pressure of 0.1 MPa. We assume that a known excess of carbon (graphite) is introduced in the system. For convenience of analysis, the basic calculation results are presented as temperature dependences of the masses of the components and the composition of the phases considered. Modeling shows that, beyond 1340°C, practically all the iron is reduced and passes to the melt. Nickel and copper behave analogously. However, the results indicate that complete extraction of manganese in the metallic melt on reduction by carbon should not be expected. Even with maximum manganese extraction in the metallic melt, its presence in the slag and gas phases remains pronounced. The volume of gas phases formed in reduction at different temperatures is estimated. Modeling convincingly shows that, over the whole temperature range considered, carbon monoxide predominates in the gas phase. Information regarding the enthalpy of the system as a function of the temperature permits estimation of the thermal energy that must be expended to bring the system to a state at which the required reduction processes are possible.

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. Pyrikov A.N., Vil’danov S.K., Likhodievskii A.V., and Martynov N.N. Ways of solution of ecological problems in ferrous metallurgy, Stal’, 2008, no. 5, pp. 99–103.

    Google Scholar 

  2. Grishchenko, S.G. and Belokurov, D.E., Complex of innovative resource saving technologies and equipment for recycling and ecologically safe utilization of the waste of metallurgy and related industries, Stal’, 2010, no. 8, p.86.

    Google Scholar 

  3. Gel’manova, Z.S. and Filatov, A.V., Projects for making efficient use of factory wastes to reduce the load on the environment, Metallurgist, 2016, vol. 59, no. 9, pp. 747–751.

    Article  Google Scholar 

  4. Kosyrev, K.L., Fomenko, A.P., Parshin, V.M., Kostin, A.S., and Zhikharev, P.Yu., Prerequisites and concept of creation of the energy-metallurgical complexes for processing of a technogenic waste, Ekol. Prom. Ross., 2013, no. 7, pp. 2–11.

    Google Scholar 

  5. Smirnov, L.A., Grabeklis, A.A., and Demin, B.L., Processing slag from ferroalloy production, Steel Transl., 2009, vol. 39, no. 1, pp. 93–96.

    Article  Google Scholar 

  6. Toporov, V.A., Osetrov, V.D., Murzin, A.V., Zhilin, A.M., Mikurova, M.I., and Konstantinov, K.S., Manufacture of an iron-bearing additive to make cement from steelmaking wastes, Metallurgist, 2014, vol. 58, no. 7, pp. 568–569.

    Article  Google Scholar 

  7. Chernousov, P.I., Retsikling. Tekhnologiya pererabotki i utilizatsii tekhnogennykh obrazovanii i otkhodov v chernoi metallurgii: monogr (Recycling. The Technology of Processing and Recycling of Technogenic Formations and Wastes of Ferrous Metallurgy: Monograph), Moscow: Mosk. Inst. Stali Splavov, 2011.

    Google Scholar 

  8. Korostelev, A.B., Recycling, processing of wastes and clean technologies, Metallurg, 2007, no. 1, pp. 72–74.

    Google Scholar 

  9. Fedoseeva, E.N., Zanozina, V.F., Zorin, A.D., and Samsonova, L.E., Preparation of iron oxide pigment from metallurgical production dust for use in construction, Metallurgist, 2015, vol. 59, nos. 5–6, pp. 374–379.

    Article  Google Scholar 

  10. Leont’ev, L.I., Sheshukov, O.Yu., Mikheenkov, M.A., Stepanov, A.I., Zuev, M.V., and Stepanov, I.A., Technological features of recycling of EAF and ladle slags into construction materials and the utilization of refined slag at Seversk Pipe Plant, Stal’, 2014, no. 6, pp. 106–109.

    Google Scholar 

  11. Smirnov, L.A., Sorokin, Yu.V., Demin, B.L., Gil’varg, S.I., Rytvin, V.M., and Smirnov, B.N., Development of the complex processing technology of the dump slag of ferroalloy production, Stal’, 2008, no. 6, pp. 90–93.

    Google Scholar 

  12. Leont’ev, L.I., Rytvin, V.M., Gil’varg, S.I., Perepelitsyn, V.A., and Rovnushkin, V.A., Processing aluminabearing ferroalloy slags, Steel Transl., 2009, vol. 39, no. 4, pp. 366–369.

    Article  Google Scholar 

  13. Zorya, V.N., Korovushkin, V.V., Permyakov, A.A., and Volynkina, E.P., Mineral composition and crystalline structure of iron-bearing components in metallurgical waste, Steel Transl., 2015, vol. 45, no. 5, pp. 331–337.

    Article  Google Scholar 

  14. Das, B., Prakash, S., Reddy, P.S.R., and Misra, V.N., An overview of utilization of slag and sludge from steel industries, Resour., Conserv. Recycl., 2007, vol. 50, no. 1, pp. 40–57.

    Article  Google Scholar 

  15. Seregin, A.N., Ermolov, V.M., Stepanyan, A.S., and Arsent’ev, V.A., Technology and equipment complexes for processing of metallic wastage with releasing of commercial products, Probl. Chern. Metall. Materialoved., 2010, no. 1, pp. 35–40.

    Google Scholar 

  16. Ma, N. and Houser, J.B., Recycling of steelmaking slag fines by weak magnetic separation coupled with selective particle size screening, J. Clean. Prod., 2014, vol. 82, pp. 221–231.

    Article  Google Scholar 

  17. Chizhevskii, V.B., Shavakuleva, O.P., Degodya, E.Yu., and Mudrykh, N.A., Deep processing of steel slags, Stal’, 2014, no. 4, pp. 124–126.

    Google Scholar 

  18. Veselovskii, A.A., Recovery of nickel from discarded slag formed during blast roasting at the Yuzhuralnikel Combine, Metallurgist, 2015, vol. 59, no. 6, pp. 461–465.

    Article  Google Scholar 

  19. Shakurov, A.G., Zhuravlev, V.V., Parshin, V.M., Shkol’nik, Ya.Sh., and Chertov, A.D., Processing of liquid steelmaking slags to obtain commercial products, Steel Transl., 2014, vol. 44, no. 2, pp. 166–172.

    Article  Google Scholar 

  20. Sorokin, Yu.V., Demin, B.L., Smirnov, L.A., Ivanitsa, S.I., Gunenkov, V.Yu., and Voloshin, Yu.A., Processing of electrosmelting slag in a ball-packed drum, Steel Transl., 2012, vol. 42, no. 3, pp. 281–284.

    Article  Google Scholar 

  21. Nokhrina, O.I., Rozhikhina, I.D., Rybenko, I.A., and Khodosov, I.E., Energy-efficient reduction of iron from its ores, Steel Transl., 2016, vol. 46, no. 4, pp. 245–250.

    Article  Google Scholar 

  22. Shakurov, A.G., Zhuravlev, V.V., Parshin, V.M., Shkol’nik, Y.S., and Chertov, A.D., Processing of liquid steelmaking slags to obtain commercial products, Steel Transl., 2014, vol. 44, no. 2, pp. 166–172.

    Article  Google Scholar 

  23. Bale, C.W., Chartrand, P., Degterov, S.A., et al., FactSage thermochemical software and databases, Calphad, 2002, vol. 26, no. 2, pp. 189–228.

    Article  Google Scholar 

  24. Bale, C.W., Bélisle, E., Chartrand, P., et al., FactSage thermochemical software and databases–recent developments, Calphad, 2009, vol. 33, no. 2, pp. 295–311.

    Article  Google Scholar 

  25. Yildirim, I.Z. and Prezzi, M., Chemical, mineralogical and morphological properties of steel slag, Adv. Civil Eng., 2011, art. ID 463638.

    Google Scholar 

  26. Dil’din, A.N., Chumanov, V.I., and Bendera, T.A., Recycling of steelmaking slag, Vestn. Yuzh.-Ural. Gos. Univ., Ser. Metall., 2007, no. 13 (85), pp. 15–16.

    Google Scholar 

  27. Dil’din, A.N., Chumanov, V.I., Chumanov, I.V., and Eremyashev, V.E., Solid-phase reduction of waste products from steelmaking, Metallurgist, 2012, vol. 56, nos. 1–2, pp. 91–96.

    Article  Google Scholar 

Download references

Author information

Authors and Affiliations

  1. Zlatoust Branch, South Ural State University, Zlatoust, Russia

    A. N. Dil’din, E. A. Trofimov & I. V. Chumanov

Authors
  1. A. N. Dil’din
    View author publications

    You can also search for this author in PubMed Google Scholar

  2. E. A. Trofimov
    View author publications

    You can also search for this author in PubMed Google Scholar

  3. I. V. Chumanov
    View author publications

    You can also search for this author in PubMed Google Scholar

Corresponding author

Correspondence to A. N. Dil’din.

Additional information

Original Russian Text © A.N. Dil’din, E.A. Trofimov, I.V. Chumanov, 2017, published in Izvestiya Vysshikh Uchebnykh Zavedenii, Chernaya Metallurgiya, 2017, No. 1, pp. 5–12.

About this article

Check for updates. Verify currency and authenticity via CrossMark

Cite this article

Dil’din, A.N., Trofimov, E.A. & Chumanov, I.V. Improving the processing of steelmaking waste. Part 1. Thermodynamic analysis. Steel Transl. 47, 1–6 (2017). https://doi.org/10.3103/S0967091217010053

Download citation

  • Received:

  • Published:

  • Issue Date:

  • DOI: https://doi.org/10.3103/S0967091217010053

Keywords

Search

Navigation