REVIEW OF THE CHROMIUM-MANGANESE-SILICONCONTAINING COMPLEX FERROALLOY

The relevance of the work lies in the need to develop a comprehensive ferroalloy technology by developing theoretical and technological foundations that contribute to increasing technical and economic indicators, as well as solving the task of attracting poor manganese ores of the Republic of Kazakhstan for metallurgical processing. The ever-high demand for quality steel grades contributes to an increase in the production of ferroalloys, in particular, complex alloys based on three main elements-manganese, silicon and chromium, which are acidifiers of steel. Poor and small ores formed during the enrichment of manganese and chromium ores are completely stored in dumps and do not find use in industry, and their disposal at work is a solution to the problem. There were attempts to agglomerate the small of the bad chromium ores. However, from an economic and technological point of view, they did not give impressive results. In the work, it is proposed to involve low-quality chromium and manganese ores in metallurgical processing to obtain a new multipurpose chromium-manganese-siliconcontaining ferroalloy suitable for steel production or subsequent processing. Purpose of the work a review was carried out in order to lay the scientific basis for the production of a complex chromium-manganese-silicon component ferroalloy using chromium and poor manganese ores of Kazakhstan.