«TOREKS» Scientific-production and practical enterprise (Ekaterinburg, Russia):

I. S. Bersenev, Cand. Eng., Head of the Agglomeration Equipment Group, Agglomeration Technology

Novotroitsk branch of the National University of Science and Technology «MISIS» (Novotroitsk, Russia):
D. R. Ganin, Engineer, e-mail: dmrgan@mail.ru
A. A. Panychev, Cand. Eng., Associate Prof., Chair of Metallurgical Technologies and Equipment

Nosov Magnitogorsk State Technical University (Magnitogorsk, Russia):
V. G. Druzhkov, Cand. Eng., Associate Prof., Chair of Metallurgy and Casting Technology

The paper presents an analysis of the results of microstructural studies of agglomerates from a charge based on iron ore concentrate from ferruginous quartzites obtained in an agglomeration cup type apparatus designed to reveal the features of the mechanism of migration of chemical elements between the mineral constituents of agglomeration cake. Insufficient knowledge of this issue is due to the complexity of the practical use of the information provided. Moreover, the peculiarities of migration of alkali metals, cobalt cannot be predicted on the basis of general laws of geochemistry and require experimental verification. During the study, the chemical composition of the minerals was determined by scanning electron microscopy. At the same time, the minerals themselves were classified into ore minerals, ferroalcium olivines, high-iron minerals, dicalcium silicate, and others. In this work, the relationship between the content in minerals FeO + Fe₂O₃, MgO, K₂O, Al₂O₃ with basicity parameters B₂ = CaO/SiO₂, B₄ = (CaO + MgO)/(SiO₂ + Al₂O₃) and the relationship of the content in minerals MnO, CoO with FeO + Fe₂O₃ and MgO, as well as the relationship of the content in minerals K₂O and Na₂O with SiO₂. Based on the data on the distribution of chemical elements in the mineral components of the agglomerate structure from the charge based on iron-ore concentrate from ferruginous quartzites, the features and mechanism of the distribution of elements were revealed. Understanding the features and mechanism of distribution of elements in the agglomeration of iron ore materials is necessary in connection with the development of technologies for extraction processes in ferrous metallurgy, the effectiveness of which is based on the rational use of physical and chemical properties of solid and liquid reaction products, and will be useful while optimizing the operation of existing technological lines and developing new ones.

1. Malysheva T. Ya., Dolitskaya О. А. Petrography and mineralogy of iron ore materials: tutorial for higher educational institutions. Moscow: MISIS. 2004. 424 p.
2. Frolov Yu. A. Agglomeration. Technology. Heat Engineering. Management. Ecology. Moscow: Metallurgizdat. 2016. 672 p.
3. Puzanov V. P., Kobelev V. A. Structure formation from fine materials with participation of liquid phases. Yekaterinburg: UrO RAN. 2001. 634 p.
4. Puzanov V. P. Fundamentals of formation of iron ore sinter functional properties. Yekaterinburg: IVTs. 2015. 352 p.
5. Puzanov V. P., Kobelev V. A. Functional properties of iron ore materials. Yekaterinburg: IVTs. 2015. 617 p.
6. Kaplun L. I. Analysis of agglomerate formation processes and improvement of the technology of its production: thesis of inauguration of Diss … of Doctor of Engineering Sciences. Yekaterinburg: UGTU-UPI. 2000. 49 p.
7. Zhuravlev F. M., Malysheva T. Ya. Pellets from ferruginous quartzites. Moscow: Metallurgiya. 1991. 127 p.
8. Zhang M., Andrade M. W. Effect of MgO and Basicity on Microstructure and Metallurgical Properties of Iron Ore Sinter. Characterization of Minerals, Metals, and Materials. 2016. pp. 167–174.
9. Zhang M., Andrade M. W. Effect of Alumina and Magnesia on Microstructure and Mineralogy of Iron Ore Sinter. Characterization of Minerals, Metals and Materials. 2017. pp. 291–299.
10. Gao Q., Wei G., Shen Y. et al. Influence and mechanism of Indonesia vanadium titano-magnetite on metallurgical properties of iron ore sinter. J. Cent. South Univ. 2017. Vol. 24. Iss. 12. pp. 2805–2812.
11. Yu W., Zuo H., Zhang J., Zhang T. et al. The Effects of High Al₂O₃ on the Metallurgical Properties of Sinter. Characterization of Minerals, Metals and Materials. 2015. pp. 419–425.
12. Geeders М., Chenyo R., Kurunov I., Lingardi О., Rikkets D. Up-todate blast furnace process. Introduction. Moscow: Metallurgiya. 2016. 280 p.
13. Rodygina V. G. Course of geochemistry: tutorial for higher educational institutions. Tomsk: Izdatelstvo NTL. 2006. 288 p.
14. Ganin D. R., Druzhkov V. G., Panychev А. А., Shapovalov A. N., Shevchenko Е. А. Study of effect of Khalilovo deposit serpentinitemagnesites additions on sinter process performances in JSC Ural Steel. Vestnik Magnitogorskogo gosudarstvennogo technicheskogo universiteta im. G. I. Nosova. 2017. Vol. 15. No. 1. pp. 20–26.
15. Ganin D. R., Druzhkov V. G., Panychev A. А., Shapovalov А. N. Increase in efficiency of sinter production process through introduction of additives-activating agents as a pulp in the charge during pelletizing process. Metallurgy of iron — challenges of the XXI century. Proceedings of the VIII International Congress of blast-furnace men. Moscow: Izdatelsky dom «Kodeks». 2017. pp. 471–479.
16. Ganin D. R., Druzhkov V. G., Panychev А. А., Bersenev I. S. Microstructure and mineralogical composition of agglomerates in use of additives of brown ironstone ores, bentonite clays and serpentinitemagnesites. Chernye Metally. 2018. No. 5. pp. 10–14.
17. Bersenev I. S., Lopatin A. S., Belogub E. V., Chesnokov Yu. A., Anisimov N. K., Maystrenko N. A. Metallurgical properties of sinter from concentrate of oxidized ferruginous quartzites. Chernaya metallurgiya. Byulleten nauchno-tekhnicheskoy i ekonomicheskoy informatsii. 2017. No. 3. pp. 48–53.
18. Becker M. Mixing and granulating of agglomerate in the metallurgical industry. Chernye Metally. 2016. No. 4. pp. 25–27.
19. Horneber А. Thyssenkrupp pilot sintering plant in Duisburg. Chernye Metally. 2018. No. 2. pp. 15–17.