The Metallurgical Characterization of Iron-Containing Concentrate

Abstract

The expediency of processing iron-containing concentrate with low iron content, increased content of manganese and copper is considered in the article. To process such a concentrate, a metallization process is proposed to produce sponge iron with a reducing agent - carbon. It was found that in solid-phase reduction at 1150 °C iron is reduced to a greater extent, as well as small particles with a copper content of about 95%, manganese is not recovered. The simulation process of metallization with carbon at a temperature of 1250 °C shows that iron is mainly distributed in the metallic phase, to a lesser extent in slag phases, manganese is distributed in two phases - metal and slag, copper is presented as a separate phase of metallic copper in the composition with iron alloys, and also composes a part of iron alloys. The reduction degree from concentrate to the metallic part is 80 - 91% for iron and 95 - 98% for copper. The presence of metallized particles of various sizes, representing phases of iron with manganese and copper was found in the slags.

Modernization of Agrarian Economy in the Republic of Kazakhstan

“…The optimum of industrial agricultural production and small agribusiness, the development of infrastructure and non-agricultural entrepreneurship are the main trends for increasing the social significance of the development of rural areas [23]. Target trends in the development of rural areas in the national interests are inseparable from an increase in their investment potential, which ensures comfortable living and employment, further social and environmental development, a decrease in the outflow of labor resources, an increase in the well-being of the rural population, the diversification of the rural economy through the creation in rural localities of various entrepreneurial activities.…”