Recycling of Chrome-Containing Waste from a Mining and Processing Plant to Produce Industrial Products

Prolonged development of ore deposits, beneficiation and metallurgical smelting concentrates result in the accumulation wastes, forming large-scale dumps sludge ponds negatively affecting environment human health. The creation introduction industrial waste treatment technologies will make it possible to dispose them with production valuable commercial products improve environmental situation. In a research article on chemical subsequent gravitational chrome-containing slurry tailings Donskoy Ore-Mining Beneficiation Plant (DOMBP), which processes chrome Kempirsay deposit Republic Kazakhstan, Aktobe region, having considerable stocks such is presented. chromium-containing were heat-treated at 1100 °C, sintered ammonium sulfate, water sulfuric acid defined ratio 300 then resulting sinter was leached 90 °C. cake washed separate liquid part from solid part. precipitate cake, upgraded by gravity concentration grade concentrate for ferroalloy production. When solution evaporated, magnesium sulfate forms Tutton’s salt ammoshenite. High-throughput chromium oxide extraction 93.9% achieved as research, three obtained: (1) standard 49.48% Cr2O3 content, (2) ammoshenite used nitrogen–magnesium fertilizer (3) forsterite, concentrated can be refractory minerals.