Study of magnetic separation in ascending air flow of Сhurbash slurry tailings

At present, most mining enterprises of ferrous metallurgy operate in conditions of depletion of reserves of iron ores. At the same time, as a result of enrichment of iron ore raw materials by enrichment plants a large amount of waste, the accumulation of which leads to the formation of huge tailings ponds. As a result of almost three centuries of activity of Vysokogorsky iron mine, and later the mining and processing plant with the same name, the volume of open pit excavations amounted to 182.3 million m3 in the area of 384.2 ha. In addition, vast territories, allocated for tailings, are withdrawn from land use. However, the iron content in the tailings is high enough and suitable for post-enrichment, which is explained by a number of factors: imperfections in the existing enrichment technology, emergency equipment shutdowns, imperfect or lack of schemes for utilization and capturing of slimes and promiscuous products. The possibility of enrichment of the 0.1−0.05 mm size classes of the artificial mixture of magnetite (20%) with quartz (80%) has been studied. Magnetic concentrate with the mass fraction of iron from 51.85 to 78.31% and recovery from 31.11 to 97.99% was obtained. Optimal results were obtained at 60-minute pretreatment roasting with the temperature of 1150 ºC and in the ascending air flow separator with dry magnetic separation of tailings from the slurry. A magnetic product with a mass fraction of iron in it of 76.14, with an iron extraction of 50.2% was obtained.

Keywords: dry enrichment, magnetic separation, pneumatic separation, iron-containing tailings, enrichment of small size classes, new processes and apparatuses, enrichment technology, technological indicators. mineral dressing.
For citation:

Morozov Y. P., Zavyalov S. S., Mamonov R. S. Study of magnetic separation in ascending air flow of Сhurbash slurry tailings. MIAB. Mining Inf. Anal. Bull. 2023;(12-1):82—92. [In Russ]. DOI: 10.25018/0236_1493_2023_121_0_82.

Issue number: 12
Year: 2023
Page number: 82-92
ISBN: 0236-1493
UDK: 622
DOI: 10.25018/0236_1493_2023_121_0_82
Article receipt date: 15.05.2023
Date of review receipt: 02.10.2023
Date of the editorial board′s decision on the article′s publishing: 10.11.2023
About authors:

Morozov Yu. P., Dr. Sci. (Eng.), professor, Federal State Budgetary Educational Institution of Higher Education “Ural State Mining University”, Russia, 620144, Yekaterinburg, st. Kuibysheva, 30, e-mail:, ORCIDA ID: 0000-0003-0554-5176; Zavyalov S. S., Engineer-researcher, Junior Research Associate at NILRNZiTO, Federal State Budgetary Educational Institution of Higher Professional Education «Ural State Mining University», 30 Kuibyshev St., Ekaterinburg, Russia, 620144, e-mail: Sergey., ORCID ID: 0000-0002-2947-0458;
Mamonov R. S., еngineer, Department mineral dressing, «Ural State Mining University», 30 Kuibyshev St., Ekaterinburg, Russia, 620144, e-mail:, ORCID ID: 0000-0002-9371-1762


For contacts:

Zavyalov S. S., e-mail:


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