Name：Mullite；Cyanite；Disthene；Kaopolite；KyaniteChemical formula: 3Al2O3·2SiO2 / 2Al2O3·SiO2Mullite (also called mullite, Aluminum silicate) refers to a series of minerals composed of aluminosilicate, the main component is aluminosilicate, its alumina content is not fixed, generally between 72~78%. Mullite is divided into two categories: natural mullite and synthetic mullite. Mullite is divided into two categories: natural mullite and synthetic mullite. Natural mullite is elatively rare, and it is generally obtained by synthetic synthesis. At present, synthetic mullite is the main product on the market, which has the characteristics of high temperature resistance, high strength, low thermal conductivity, and significant energy-saving effect.
　　usage:
　　1. new refractory materials and used in metallurgy, casting and other industries.
　　2. Preparation of mullite composite materials, used in the fields of electricity and ceramics.
　　3. Mullite has stable chemical properties, good corrosion resistance, and its excellent performance is widely used only in compound coatings.