Calcining of kaolin
Calcination is widely used for the production of special kaolin products. It has 4 calcination temperature ranges: 500~700 C, 925 C, 1000 C, 1400 C. Calcined at different temperatures, the products have different application ranges. Calcined kaolin with hydroxyl removal is used as filler for cable plastics and rubber sealing rings. Calcined at 1000 C can replace Tio2 as paper filler. Calcined at 1300 1525 C can be used as filler for refractory products and optical glass crucible. Lining and so on.