Utilization of Iron-Containing Waste from Magnetic Concentration of Kursk Magnetic Anomaly’s Oxidized Ferruginous Quartzites
Abstract
The paper studies the problem of utilization of oxidized ferruginous quartzites which are stored with overburden at the present time. The solution of the problem is restrained by absence of efficient technology for concentration and lumping of these ores. The results of studing and analyzing quartzite concentration methods have shown that floatation methods are the most efficient way of producing a high-quality iron-ore concentrate. The produced concentrate contained up to 67% of iron. When lumping concentrates of oxidized quartzites, the derived products, i.e. agglomerates and pellets, can significantly improve technical and economic parameters of blast-furnace smelting in terms of productivity and specific coke consumption. The use of oxidized ferruginous quartzites will reduce the man-caused impact on the environment, which is important for regions with a high concentration of industrial plants.
Keywords: ferruginous quartzites, concentration, floatation, lumping, sinter, pellets, quality parameters
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