Bauxite is an important aggregate of refractory castables. Most refractory castables are made of bauxite clinker as aggregate. Refractory castables are often used in the lining of high-temperature furnaces. Good strength, these are exactly the properties that bauxite aggregates have.
 
Bauxite is widely used in the refractory industry, such as refractory materials, refractory castables and refractory coatings, among which refractory castables are widely used, high alumina refractory castables, corundum refractory castables for aggregates All are bauxite clinker, which is all due to the refractoriness of bauxite.
 
There are also aluminum silicate refractory fibers, which are also made of bauxite. Bauxite has the advantages of light weight, high temperature resistance, good thermal stability, low thermal conductivity, small heat capacity and mechanical vibration resistance. Used in steel, non-ferrous metallurgy, electronics, petroleum, chemical industry, aerospace, atomic energy, national defense and other industries. It is to put high-alumina clinker into a high-temperature electric arc furnace with a melting temperature of about 2000-2200 ℃, and then melt at high temperature, spray and cool with high-pressure and high-speed air or steam, and become white aluminum silicate refractory fiber. It can be pressed into fiber blanket, board or woven into cloth to replace refractory bricks lining high temperature furnaces in smelting, chemical, glass and other industries.