Improving the efficiency of the carbothermal reduction of red mud by microwave treatment

In this work, we studied the effect of microwave treatment red mud briquettes containting more than 48% Fe on process iron reduction under various conditions heat treatment. Research samples were collected from formed during production alumina bauxite at Ural Aluminum Smelter. The chemical composition was examined by X-ray fluorescence analysis. initial and that agglomerates obtained after in muffle furnaces using diffraction method. Phase transitions structural changes occurring heating scanning electron microscopy. experimental comprising charcoal treated 850°C 1000°C a furnace (under frequency 2.45 GHz power 900 W). For reference, analogous heat-treated same conditions. It found that, to for 10 min, hematite is completely reduced metallic addition wustite. An analysis m i-crostructure showed particles as-obtained pellet-agglomerates have larger size those conventional thermal furnace. metallized phases end create stable durable body agglomerates. evidence-based parameters can become basis designing technology recycling such an industrial material as mud. high-strength pellets with high content (up 85%) may be used alternative charge ferrous metallurgy. proposed into applied industries reduce environmental impact areas plants.