St. Petersburg Mining University (St. Petersburg, Russia):

V. B. Kuskov, Cand. Eng., Associate Prof., Dept. of Mineral Processing, kuskov_vb@pers.spmi.ru
V. V. Lvov, Cand. Eng., Associate Prof., Dept. of Mineral Processing, lvov_vv@pers.spmi.ru

National University of Science and Technology “MISIS” (Moscow, Russia):
T. I. Yushina, Cand. Eng., Associate Prof., Head of Dept. of Mineral Processing and Technogenic Raw Materials, yuti62@mail.ru

Iron is the base of modern economy. In Russia, iron reserves are plentiful, with magnetite quartzites forming the core of the country’s ore base. Oxidized ferruginous quartzites are a major source of replenishing mineral resources of Russia. The article studies the material composition and preparation characteristics of four representative samples of oxidized iron ore with different iron content. As the key preparation process, both strong and weak magnetic separation was used, with multi-stage grinding. The possibility to apply fine grinding using IsaMill method was explored. The result is a conceptual technology of comprehensive processing of mature tailings remaining after brown iron ore preparation which enables to obtain iron-containing concentrate suitable for smelting under Romelt process to yield pig iron and slag to be used in aggregates production. The work shows the possibility of obtaining light brown iron oxide pigments from disposal sites of Kamysh-Burun iron ore plant.

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