Preparation method of magnesium-carbon refractory material reinforced by titanium boride to resist acid high-titanium slag erosion

Abstract

The application relates to a preparation method of a magnesium-carbon refractory material with added titanium boride for enhancing resistance to acid high-titanium slag corrosion, and belongs to the field of refractory materials. The magnesium-carbon refractory material is prepared by taking magnesite and flake graphite as main raw materials and directly introducing titanium boride powder as a functional additive phase. The introduced titanium boride can effectively improve the matrix structure and interface state of the magnesium-carbon refractory material, improve the penetration resistance and chemical corrosion resistance of the material under the action of acid high-titanium slag, and also consider the oxidation resistance and high-temperature service stability of the material. After the magnesium-carbon refractory material is added, the microstructure and interface state of the material can be effectively improved, the penetration and chemical corrosion of the acid high-titanium slag on the material are slowed down; meanwhile, the titanium boride and the magnesium-carbon system synergistically act, which is helpful to improve the structural compactness, slag corrosion resistance and high-temperature service stability of the material, so that the obtained magnesium-carbon refractory material is more suitable for acid high-titanium slag working conditions such as a vanadium and titanium extraction smelting separation furnace, the process flow is simple, and the preparation cost is low.