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Journal of Mining Sciences

2018 year, number 1

Combination Methods of Hematite-Braunite Ore Processing

M. A. GURMAN, L. I. SHCHERBAK
Institute of Mining, Far East Branch, Russian Academy of Sciences, ul. Turgeneva 51, Khabarovsk, 680000 Russia
Keywords: гематит-браунитовая руда, джеспилиты, магнитная сепарация, гравитационное обогащение, марганцевые концентраты, благороднометалльная минерализация, hematite-braunite ore, jaspilite, magnetic separation, gravity concentration, manganese concentrate, noble metal presence

Abstract

The material composition and process properties of hematite-braunite iron-manganese ore from South Khingan deposit of Russia’s Far East are studied. The source of manganese in the ore is mostly braunite. The mineralogy and petrography of the ore and its processing products are characterized. Noble minerals are found in the ore; the composition of gold contains platinum and silver admixtures. Producibility of manganese concentrates with the Mn content of 37.85-46.46% using the circuit of multi-stage combination of magnetic separation in weak and strong field and, then, concentration by gravity is experimentally proved.