
— Mullite Crusher Kun900 Mullite Crusher The usual source of mullite (3Al 2 O 3 2SiO 2) for use in the refractories industry, is hydrated clays, which, when heated, produce mullite and an associated glass phase that can flow above 1200 C .Another source of mullite, the sintering of a mixture of simple alumina and silica powders, often leads to …