Journals →  Tsvetnye Metally →  2022 →  #4 →  Back

ArticleName Magnetic separation as part of new nickel concentrate processing technology at Kola MMC: performance analysis and upgrade. Part II
DOI 10.17580/tsm.2022.04.01
ArticleAuthor Ryabushkin M. I., Romanov А. L., Pakhomov R. A., Tsymbulov L. B.

Kola MMC, Monchegorsk, Russia:
M. I. Ryabushkin, First Deputy General Director – Chief Engineer, e-mail:


Gipronikel Institute LLC, Saint Petersburg, Russia:
A. L. Romanov, Principal Specialist at the Laboratory for Geological Studies
R. A. Pakhomov, Senior Researcher at the Pyrometallurgy Laboratory, Candidate of Technical Sciences, e-mail:
L. B. Tsymbulov, Director of the Research and Development Department, Doctor of Technical Sciences


The change in Kola Mining and Metallurgical Company JSC (KMMK) smelter technology upon processing nickel concentrate from separation of copper-nickel matte considerably toughened the requirements to nickel powder of tube-type furnaces be ing subject to chlorine dilution in tank house. The operational imperfection of current technology of magnetic separation site when separating the non-magnetic component, and the peculiarities of the raw materials behavior discovered at the start of production have required the site upgrade. The research presented in the materials is the second part of the work on considering ways to improve the quality of the resulting product by separating materials based on the difference in their magnetic properties. In the present paper, we consider feasibility of control magnetic separation. The performance of control magnetic separation were determined upon the change in feed size, rotation frequency of the drum and magnetic field strength at the main and control separation. The research undertaken has determined the operation parameters of the expected process flowsheet of magnetic separation site consisting of two process units: two-stage crushing-classification and two-stage magnetic separation. According to the experimental data reported, the recommended crushing operation parameters are set, both the magnetic induction field and rotation frequency defined at the main and control separation. Calculation of performance indicators for nickel powder recovery as per the suggested flowsheet has been has been carried out, losses of nickel returned to head units of nickel raw materials process chain (work-in-process) have been estimated for two process flowsheets, current and perspective.

keywords Nickel concentrate, reduction, nickel powder, Kola MMC, tubetype furnaces, magnetic separation, SEM, EDX

1. Tsapah S. L., Demidov K. A., Khomchenko O. A., Sadovskaya G. I. Mechanism of processing of copper-nickel matte concerning chlorine based on technology of electrolytic nickel production. Tsvetnye Metally. 2009. No. 9. pp. 72–75.
2. Khomchenko O. A., Sadovskaya G. I., Dubrovskiy V. L., Smirnov P. V., Tsapakh S. L. Development and implementation of chlorine technology of nickel and cobalt at JSC “Kola MMC”. Tsvetnye Metally. 2014. No. 9. pp. 81–88.
3. Demidov K. A., Besedovskiy S. G., Shelestov N. A., Khomchenko O. A. et al. Method of production of electrolytic nickel. Patent RF, No. 2303086. Applied: 20.02.2007. Published: 20.07.2007.
4. Miroevskiy G. P., Golov A. N., Ermakov I. G., Kozyrev V. F. et al. Method of electrolytic refining of nickel. Patent RF, No. 2144098. Applied: 27.05.1999. Published: 10.01.2000.
5. Tsapakh S. L., Lutova L. S., Chetverkin A. Yu. To a problem of copper deposition in presence of elemental sulfur and a reducing agent. Tsvetnye Metally. 2012. No. 4. pp. 26–31.
6. Abramov A. A. Processing, concentration and comprehensive utilization of solid minerals. In 3 volumes. Vol. 1. Concentration processes and machinery. 2nd reprint edition. Moscow : Izdatelstvo Moskovskogo gosudarstvennogo gornogo universiteta, 2004. 70 p.
7. Ryabushkin M. I., Pakhomov R. A., Tsymbulov L. B., Savinova Yu. A. Behaviour of SiO2 during a new process applied to nickel concentrate from matte separation at Kola MMC. Tsvetnye Metally. 2021. No. 12. pp. 14–24. DOI: 10.17580/tsm.2021.12.02.
8. Zorya V. N., Anikin A. E., Volynkina E. P., Fedyakina A. N. Examining the use of magnetic separation to process wastes accumulated in EVRAZ ZSMK’s tailing pond. Waste Management as the Basis for Restoring the Ecological
Balance in Russia’s Industrial Regions: 4th international conference. Novokuznetsk, 2012. pp. 190–198.
9. Khudyakov S. G., Melkomukova O. G., Lanovetskiy S. V. Analyzing the applicability of mechanical and magnetic separation techniques for the concentration of titanium industry waste. Molodezhnaya nauka v razvitii regionov. 2018. Vol. 1. pp. 230–234.
10. Zubarev A. I. An experimental study of magnetic induction and prospective use of dry magnetic separation as a concentration technique applicable to granular manganese-carrying wastes. Research papers of Donetsk National Technical University. Series: Mining and Geology. 2014. No. 2(21). pp. 55–59.
11. Diakonov O. M. Processing of metal-containing tailings. Lite i Metallurgiya. 2001. No. 3. pp. 181–185.
12. Zhao Q., Xue J., Chen W. Zero-waste recycling method for nickel leaching residue by direct reduction–magnetic separation process and ceramsite preparation. Transactions of the Indian Institute of Metals. 2019. Vol. 72. pp. 1075–1085.
13. Zhao Q., Wei J. Zero-waste recycling method for textile dyeing sludge by magnetizing roasting–magnetic separation process and ceramic filter preparation. Chemical Papers. 2020. Vol. 74. pp. 4389–4399.
14. Shiryaev A. A., Velichko Yu. V., Botvinnikov V. V., Goncharov A. I. Concentration of the Kryvyi Rih waste high-grade oxidized ores by dry magnetic separation. Obogashchenie Rud. 2005. No. 2. pp. 7–10.
15. Chernousenko E. V., Vishnyakova I. N., Kameneva Yu. S., Neradovskiy Yu. N. Analyzing the possibility to recover non-ferrous metals from old copper-nickel ore concentration tailings. Gornyy informatsionno-analiticheskiy byulleten. 2019. No. 7. pp. 196–206.
16. Boutouchent-Guerfi N., Boussourdi M. A., Lami A. et al. Dry magnetic separation on the recovery of metal fragments from kerf slurry waste produced during the manufacture of photovoltaic solar cells. Silicon. 2021. Vol. 13. pp. 149–153.
17. Lvov V. V., Kuskov V. B. A treatability study of the Bakcharskoye deposit iron ores concentration by means of high-intensity magnetic separation. Obogashchenie Rud. 2015. No. 1. pp. 26–30.
18. Nizov V. A., Bakirov A. R., Mishchenko V. N. Method of dressing oxide nickel ores. Patent RF, No. 2458742. Applied: 23.02.2011. Published: 20.08.2012.
19. Ma N., Houser J. B., Wood L. A. et al. Enhancement of iron recovery from steelmaking slag fines by process optimization of upgrading the slag fines with dry magnetic separation. Journal of Sustainable Metallurgy. 2017. Vol. 3. pp. 280–288.
20. Gao L., Liu Z., Pan Y. et al. Separation and recovery of iron and nickel from low-grade laterite nickel ore using reduction roasting at rotary kiln followed by magnetic separation technique. Mining, Metallurgy and Exploration. 2019. Vol. 36. pp. 375–384.
21. Wang J., Zu P., Yi S. et al. Preconcentration of iron, rare earth, and fluorite from bayan obo ore using superconducting magnetic separation. Mining, Metallurgy and Exploration. 2021. Vol. 38. pp. 701–712.
22. Ryabushkin M. I., Romanov A. L., Pakhomov R. A., Tsymbulov L. B. Magnetic Separation as Part of New Nickel Concentrate Processing Technology at Kola MMC: Performance Analysis and Upgrade. Part I. Tsvetnye Metally. 2022. No. 3. pp. 60–68. DOI: 10.17580/tsm.2022.03.07.
23. Barskiy L. A., Kozin V. Z. System analysis for minerals processing. Moscow : Nedra, 1978. 486 p.
24. Krishtal M. M., Yasnikov I. S., Polunin V. I., Filatov A. M., YulianinkovA. G. Scanning electron microscopy and X-ray microanalysis: Examples of practical application. Moscow : Tekhnosfera, 2009. 208 p.
25. Savinova Yu. A. Developing a fluidized-bed furnace process for oxidizing roasting of sulphide concentrates of non-ferrous metals : Dissertation of Candidate of Technical Sciences: 05.16.02. Saint Petersburg, 2018. 155 p.

Language of full-text russian
Full content Buy