PRODUCTION MANGANESE FERROALLOYS OF MANGANESE ORE USINSKOYE FIELD

Usinskoe manganese field one of the largest in Russia in terms of (the carrying reserves - 98.5 million tonnes probable reserves – 150.4 million tons). Manganese ore deposits Usinskoye characterized by comparatively low manganese content (18 – 22 %) and a high content of phosphorus (0.2 – 0.3 % and more). Developed technological flowsheet Usinskaya ore, which involves the use of X-nofluorestsentnoy (X-ray radiometric) separation for lumps and jigging for small. Based on the analysis of the processes of smelting manganese ferroalloys and chemical composition of the concentrates produced at enrichment of manganese ores of new Usinskoye field, developed the optimal flowsheet of obtaining the whole range of manganese ferroalloys.