Calcined Kaolin is characterized by stable bulk, large density, low coefficient of expansion, large hardness, small moisture absorption and good wear resistance after calcining at high temperature.
It is widely used in clay-based shaped and unshaped refractories, clay crucible, domestic ceramics, foundry sands, casting coatings, architectural ceramics, aluminum silicate fibers, wall and floor tiles and other industries.
| Chemical Composition (%) | Bulk Density (g/cm³) | |||||
| Al2O3 | SiO2 | Fe2O3 | K2O+Na2O | CaO+MgO | TiO2 | |
| 44-47 | 45-50 | ≤1.2 | ≤0.3 | ≤0.5 | ≤0.8 | 2.55 |
| 43-45 | 43-52 | ≤1.5 | ≤0.4 | ≤0.5 | ≤0.9 | 2.50 |
