Quality improvement of magnetite concentrate in separate processing of different iron ore types and varieties

The studies aimed to assess improvability of quality of concentration in separate processing of different types and varieties of iron ore. Separate processing of low-grade and standard-grade titaniferous ore from the Gusevogorskoe deposit produced high-quality concentrate (65.86% Fe) and mean-quality concentrate (62.52% Fe). It is assumable therefrom that separate processing can improve quality of iron concentrate and enhance total performance of concentration as against concentration of ROM ore. Separate processing of different types of Sutarskoe ferruginous quartzite produced higher quality concentrates (66.6–68.36% Fe; 2.9– 4.35% SiO2) as compared with the concentrate obtained from blended ROM ore (65.43% Fe; 5.93% SiO2). Separate processing of different types of Garinskoe magnetite ore produces super concentrates suitable for nonblast-furnace iron-making (69.1–70.7% Fe; 0.42–0.89% SiO2). The iron content of the concentrate obtained from ROM ore was 68.65%. Thus, separate processing of different iron ore types and varieties enables higher quality ion concentrate to be produced in the standard processing flowchart, without after-treatment of the concentrate. A shortcoming of the technology in terms of its full-scale application is difficult arrangement of individual separation processes for different ore types at a concentration factory.

Pelevin A. E., Kornilkov S. V., Dmitriev A. N., Bagazeev V. K. Quality improvement of magnetite concentrate in separate processing of different iron ore types and varieties. MIAB. Mining Inf. Anal. Bull. 2021;(11-1):306—317. [In Russ]. DOI: 10.25018/0236_1493_2021_111_0_306.

Pelevin A. E.¹, Dr. Sci. (Eng.), Associate Professor, Professor at the Mineral Processing Department, e-mail: a-pelevin@yandex.ru;
Kornilkov S. V.², Dr. Sci. (Eng.), Professor, Chief Researcher;
Dmitriev A. N.³, Dr. Sci. (Eng.), Professor, Chief Researcher;
Bagazeev V. K.¹, Dr. Sci. (Eng.), Associate Professor, Professor at the Department Mining;
¹ Ural State Mining University, ul. Kuibysheva 30, Yekaterinburg, 620144 Russia;
² Institute of Mining, Ural Branch, Russian Academy of Sciences, Yekaterinburg, Russia;
³ Institute of Metallurgy, Ural Branch, Russian Academy of Sciences, Yekaterinburg, Russia.

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