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Iron Reduction from Concentrates of Hydrometallurgical Dressing

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Abstract

The article presents results of theoretical and experimental studies of the processes of iron solid-phase reduction from an iron-containing concentrate obtained as a result of hydrometallurgical dressing of ferromanganese and polymetallic manganese-containing ores with coals of grades D (long-flame) and 2B (brown). The method of thermodynamic modeling using TERRA software complex was used to study the reducing properties of hydrocarbons by calculating equilibrium compositions in the temperature range of 373–1873 K. The authors obtained the dependences of compositions and volume of the gas phase formed as a result of the release of volatile components during heating on the temperature for the coals of the grades under consideration. As a result of thermodynamic modeling, the optimal temperatures and consumption are determined, which ensure the complete iron reduction from an iron-containing concentrate. The results of experimental studies were obtained by modern research methods using laboratory and analytical equipment, as well as methods of statistical processing. Results of the coals analysis carried out using the Setaram LabSys Evo thermal analyzer showed that the process of thermal decomposition of coals of the studied grades proceeds according to general laws. The process of thermal decomposition of long-flame coal proceeds less intensively than of brown coal. The results of an experimental study of the processes of thermal decomposition of reducing agents have shown that volumes of the gas phases, formed when coals are heated to a temperature of 1173 K in an argon atmosphere, practically coincide with the calculated values. As a result of thermodynamic modeling and experimental study, the optimal consumption of D and 2B grades of coal is determined at a temperature of 1473 K. The best reducing agent with a minimum specific consumption is long-flame coal of D grade. When determining the optimal amount of reducing agent in charge mixtures during the study of metallization processes, it was found that with an excess of reducing agent, it is possible to achieve almost complete extraction (98–99%) of iron from the concentrate.

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Notes

  1. http://docs.cntd.ru/document/420204426).

  2. http://ietd.iipnetwork.org/content/slrn-process).

REFERENCES

  1. Rudyka, V.V., Prospects of the technology of iron direct reduction in metallurgical production, Chern. Metall., Byull. Nauchno-Tekh. Ekon. Inf., 2017, no. 10, pp. 14–23.

  2. Rutherford, S.D. and Kopfle, J.T., Mesabi nugget: World’s first commercial ITmk3(r) plant, Proc. AISTech 2009 Iron and Steel Technology Conf., Warrendale, PA: Assoc. Iron Steel Technol., 2009, vol. 1, pp. 177–185.

  3. Seki, K. and Tanaka, H., Changes in Paradigm—Development of Iron & Steel Industry by Applying Coal Based DR Processes: Fastmelt(r) & ITmk3(r), Tokyo: Kobe Steel, 2008.

    Google Scholar 

  4. Nagano, K.I., The current status and future of iron ore and coal resources for Japanese steel mills, Tetsu-to-Hagane, 2004, vol. 90, no. 2, pp. 51–60. https://doi.org/10.2355/tetsutohagane1955.90.2_51

    Article  CAS  Google Scholar 

  5. Zhang, Y.Y., Qi, Y.H., Zou, Z.S., and Li, Y.G., Development prospect of rotary hearth furnace process in China, Adv. Mater. Res., 2013, vol. 746, pp. 533–538. https://doi.org/10.4028/www.scientific.net/AMR.746.533

    Article  Google Scholar 

  6. Wiesinger, H., Eberle, A., Siuka, D., Freydorfer, H., and Bohm, C., Status, realized improvements and future potentials of the Corex technology, Stahl Eisen, 2002, vol. 122, no. 6, pp. 23–28.

    CAS  Google Scholar 

  7. Nobuhiko, T., Development of iron-making technology, Nippon Steel Tech. Rep., 2012, no. 101, pp. 79–88.

  8. Kirschen, M., Badr, K., and Pfeifer, H., Influence of direct reduced iron on the energy balance of the electric arc furnace in steel industry, Energy, 2011, vol. 36, no. 10, pp. 6146–6155. https://doi.org/10.1016/j.energy.2011.07.050

    Article  CAS  Google Scholar 

  9. Tanaka, H., Miyagawa, K., and Harada, T., Fastmet, Fastmelt, and ITmk3: Development of new coal-based ironmaking processes, Direct Midrex, 2007/2008, pp. 8–13.

    Google Scholar 

  10. Nikitchenko, T.V. and Timofeeva, A.S., Production of direct reduction iron, Chern. Metall., Byull. Nauchno-Tekh. Ekon. Inf., 2014, no. 3, pp. 46–50.

  11. Hryha, E. and Dudrova, E., The sintering behavior of Fe–Mn–C powder system, correlation between thermodynamics and sintering process, Mn distribution and microstructure, Mater. Sci. Forum, 2007, vols. 534–536, pp. 761–764. https://doi.org/10.4028/0-87849-419-7.761

    Article  Google Scholar 

  12. Sheshukov, O., Mikheenkov, M., Vedmid, L., Nekrasov, I., and Egiazaryan, D., Mechanism of ion-diffusion solid-phase reduction of iron oxides of technogenic origin in the presence of the liquid phase and without it, Metals, 2020, vol. 10, no. 12, pp. 1–12. https://doi.org/10.3390/met10121564

    Article  CAS  Google Scholar 

  13. 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 

  14. Nokhrina, O.I., Rozhikhina, I.D., Golodova, M.A., and Izrail’skii, A.O. Possibility of dressing of Kuzbass ferromanganese ores, Chern. Metall., Byull. Nauchno-Tekh. Ekon. Inf., 2020, vol. 76, no. 9, pp. 904–909.

    Google Scholar 

  15. Vatolin, N.A., Trusov, B.G., and Moiseev, G.K., Termodinamicheskoe modelirovanie v vysokotemperaturnykh neorganicheskikh sistemakh (Thermodynamic Modeling in High-Temperature Inorganic Systems), Moscow: Metallurgiya, 1994.

  16. Trusov, B.G., TERRA software system for modeling phase and chemical equilibria at high temperatures, Materialy III Mezhdunarodnogo simpoziuma “Gorenie i plazmokhimiya,” Almaty, Kazakhstan, 24–26 avgusta 2005 (Proc. III Int. Symp. “Combustion and Plasmochemistry,” Almaty, Kazakhstan, August 24–26, 2005), Almaty: Kazak Univ., 2005, pp. 52–57.17

  17. Rybenko, I.A., Nokhrina, O.I., Rozhikhina, I.D., and Golodova, M.A., Modelirovanie i optimizatsiya uslovii i rezhimov protsessov pryamogo vosstanovleniya metallov (Modeling and Optimization of Conditions and Modes of Direct Metal Reduction), Novokuznetsk: Sib. Gos. Ind. Univ., 2019.

  18. Khodosov, I.E., Nokhrina, O.I., Rozhikhina, I.D., and Rybenko, I.A., Modeling of solid-phase reduction of iron by black coals, Materialy XVI Mezhdunarodnoi konferentsii Sovremennye problemy elektrometallurgii stali (Proc. XVI Int. Conf. “Modern Problems of Steel Electrometallurgy”), in 2 parts, Magnitogorsk: Yuzh.-Ural. Gos. Univ., 2015, pp. 210–214.

  19. Yusfin, Yu.S. and Pashkov, N.F., Metallurgiya zheleza (Iron Metallurgy), Moscow: Metallurgiya, 2007.

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Funding

The work was supported by the Russian Foundation for Basic Research and the Subject of the Russian Federation (Kemerovo Region—Kuzbass) within the framework of the scientific project no. 20-48-420001/21.

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Authors and Affiliations

  1. Siberian State Industrial University, 654007, Novokuznetsk, Russia

    I. A. Rybenko, O. I. Nokhrina, I. D. Rozhikhina & M. A. Golodova

  2. CJSC “Sever Minerals”, 654007, Novokuznetsk, Russia

    I. E. Khodosov

Authors
  1. I. A. Rybenko
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  2. O. I. Nokhrina
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  3. I. D. Rozhikhina
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  4. M. A. Golodova
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  5. I. E. Khodosov
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Corresponding authors

Correspondence to I. A. Rybenko, O. I. Nokhrina, I. D. Rozhikhina, M. A. Golodova or I. E. Khodosov.

Additional information

Translated by K. Gumerov

Supplementary Information

For citation: Rybenko I.A., Nokhrina O.I., Rozhi-khina I.D., Golodova M.A., Khodosov I.E. Iron reduction from concentrates of hydrometallurgical dressing. Izvestiya. Ferrous Metallurgy. 2021, vol. 64, no. 10, pp. 728–735. (In Russ.). https://doi.org/10.17073/0368-0797-2021-10-728-735.

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Rybenko, I.A., Nokhrina, O.I., Rozhikhina, I.D. et al. Iron Reduction from Concentrates of Hydrometallurgical Dressing. Steel Transl. 51, 693–699 (2021). https://doi.org/10.3103/S0967091221100120

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