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ArticleName Development of a technology for producing iron concentrate from copper-titanomagnetite ores of the Volkovskoye deposit
DOI 10.17580/or.2021.05.05
ArticleAuthor Bulatov K. V., Gazaleeva G. I., Mushketov A. A., Sopina N. A.

JSC «Uralmekhanobr» (Ekaterinburg, Russia):

Bulatov K. V., General Director, Candidate of Engineering Sciences
Gazaleeva G. I., Head of Department, Doctor of Engineering Sciences,
Mushketov A. A., Senior Researcher
Sopina N. A., Head of Laboratory


The paper presents the results of the development of a processing technology for the flotation tailings of mixed-type complex copper-titanomagnetite ores of the Volkovskoye deposit for the concentrator currently under construction. Process regulations and a construction design were first developed for the new plant that is to process 10 Mtpa of ore into copper concentrate. In order to ensure the complex use of the ore, the possibility of additional treatment of copper flotation tailings to produce iron concentrate was studied. The resulting technology includes four wet magnetic separation stages with a magnetic field induction of 0.11 T. The first two stages were tested with the current grain size of the flotation tailings. Three magnetic product grinding options were studied, to be conducted downstream of the two magnetic separation stages, with the finished product sizes of 60, 68 and 90 % –44 μm. The subsequent wet magnetic separation allowed establishing the optimal size of 90 % –44 μm. The technology allowed generating iron concentrate with a total content of iron of 61.7 % wt. and titanium dioxide of 6.10 % wt. The increased content of the latter prevents the use of the resulting concentrate in blast-furnace smelting. Experiments were carried out to study the possibility of reducing the titanium dioxide content to a level of less than 3 % wt. For this purpose, the concentrate was ground in a bead mill to 95 % –20 μm. Wet magnetic separation at a magnetic field induction of 0.05, 0.09 and 0.13 T allowed reducing the titanium dioxide content by no more than 0.23 % wt., which confirmed the mineralogical survey data.

keywords Copper-titanomagnetite ores, mineral composition, processing technologies, flotation tailings, concentrator, copper concentrate, iron concentrate.

1. Bystrov I. G. Assessment of the influence of titanomagnetite heterogeneity on the washability of iron ores of magmatic genesis: diss. for the degree of Candidate of Geological and Mineralogical Sciences. Мoscow, VIMS, 2014. 117 p.
2. Pelevin A. E. Disclosure of rock minerals in the stages of grinding titanomagnetite ore of the Gusevogorsk deposit. Scientific foundations and practice of processing ores and manmade raw materials. Proc. of ХХ International scientific and technical conference. April 15–16, 2015, Ekaterinburg. pp. 38–44.
3. Gazaleeva G. I. Development of titanomagnetite beneficiation technology, prospects for its widespread use in Russia and the CIS. Complex use of raw materials. Proc. of Congress with international participation and elements of the School of young scientists «Fundamental research and applied development of the processes of processing and utilization of technogenic formations». Ekaterinburg: Uralskiy Rabochiy, 2019. pp. 66–72.
4. Lyutoev V. P., Makeev A. B., Lysyuk A. Yu. Exploring a possibility to determine titanium magnetite ores mineral composition by spectroscopy data. Obogashchenie Rud. 2017. No. 5. pp. 28–36. DOI: 10.17580/or.2017.05.05.
5. Pelevin A. E., Sytykh N. A. Titanomagnetite ore twostage grinding circuit tests. Obogashchenie Rud. 2018. No. 2. pp. 13–18. DOI: 10.17580/or.2018.02.03.
6. Karmazin V. I., Karmazin V. V. Magnetic, electric and special methods of mineral beneficiation. In 2 vol. Мoscow: Gornaya Kniga, 2012. Vol. 1: Magnetic and electric methods of mineral beneficiation. 672 p.
7. Pakhomov E. A., Grebenkin G. A., Konev V. I. et al. Technology of iron ore pellets production at Kachkanarsky GOK. Pitting of iron ores and concentrates: collection of scientific articles / Uralmekhanobr. 1976. No. 3. pp. 89–99.
8. Leontiev L. I., Vatolin N. A., Shavrin S. V., Shumakov N. S. Pyrometallurgical processing of complex ores. Moscow: Metallurgiya, 1997. 432 p.
9. Markauskas D., Kruggel-Emden H. Coupled DEMSPH simulations of wet continuous screening. Advanced Powder Technology. 2019. Vol. 30, Iss. 12. pp. 2997–3009.
10. Pelevin A. E., Sytykh N. A. Fine hydraulic screening for staged separation of titanium-magnetite concentrate. Obogashchenie Rud. 2021. No. 1. pp. 8–14. DOI: 10.17580/or.2021.01.02.
11. Samayamutthirian Palaniandy, Rinto Halomoan, Hidemasa Ishikawa. TowerMill circuit performance in the magnetite grinding circuit — The multi-component approach. Minerals Engineering. 2019. Vol. 133. pp. 10–18.
12. Le Roux J. D., Olivier L. E., Naidoo M. A., Padhi R., Craig I. K. Throughput and product quality control for a grinding mill circuit using non-linear MPC. Journal of Process Control. 2016. Vol. 42. pp. 35–50.
13. Sentemova V. A. Testing of flotation technology aimed at iron concentrates grade improvement. Obogashchenie Rud. 2009. No. 3. pp. 17–21.
14. Liu Sh., Zhou Yu., Li X., Cao Ch. Research on the separating features of a permanent magnetic force and open magnetic system. XXVIII IMPC Proceedings. Quebec, Canada. 2016. Paper ID 395.
15. Pelevin A. E. Improving magnetite concentrate quality in an alternating magnetic field. Obogashchenie Rud. 2019. No. 6. pp. 19–24. DOI: 10.17580/or.2019.06.04.
16. Gorbatova E. A., Pirogov B. I., Rakov L. T., Kolkova M. S.Features of evaluating the magnetic properties of titanomagnetites in disseminated ores of the Medvedevskoe deposit. Problems and prospects of effective processing of mineral raw materials in the 21st century: Plaksin Readings – 2019. pp. 64–67.
17. Parian M., Lamberg P., Rosen J. Developing a particle — based process model for unit operations of mineral processing. International Journal of Mineral Processing. 2016. Vol. 154. pp. 53–65.
18. Gorbatova E. A., Pirogov B. I., Kolkova M. S., Kolesatova O. S. Determination of the possibility of separation of titanomagnetite and ilmenite in the selective separation of titanomagnetite ores. Izvestiya Uralskogo Gosudarstvennogo Gornogo Universiteta. 2020. Iss. 1. pp. 140–149.
19. Goncharov K. V. One-stage process of direct production of iron and titanium-vanadium slag from titaniummagnetite concentrates and hydrometallurgical extraction of vanadium from slag: diss. for the degree of Candidate of Geological and Mineralogical Sciences. Moscow, IMET RAS, 2015. 127 p.

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