KAOLINKaolin is a mixture of inorganic nonmetal, calcined kaolin is calcined kaolin in sintering furnace to a certain temperature and time, the physical and chemical properties which has a certain change, in order to meet certain requirements.
Type: Calcined kaolin clay Washed kaolin clay Metakaolin(High activity)
Characteristics for kaolin:
1. High refractoriness.
2. Physicochemical stability.
3. Volume density high .
4. Low porosity.
5. Low water absorption.
6. Fully calcined
7. Low impurity content.
8. Pure white.
Particles: 0-1mm,1-3mm,3-5mm,5-8mm,8-15mm
Sand:16-30mesh,30-60mesh,60-80mesh,80-120mesh
Powder: 200mesh,250mesh,325mesh,800mesh,1250mesh,2500mesh,4000mesh,6000mesh
Physical and Chemical Specification
| Properties | Spec. | Test results for reference |
| Refractoriness, ºC | ≥1790 |
|
| Bulk Density, g/cm3 | ≥2.48 |
|
| L.O.I (%) | ≤0.25 |
|
| Mullite Phase (%) | 55-65 |
|
| Mohs Hardness | 7-8 |
|
| Fines in sands,% | ≤0.3 |
|
| PH Value | 6-8 |
|
| Chemicals |
| Al2O3,% | 46-48 | 46.62 |
| SiO2,% | 50-52 | 50.81 |
| Fe2O3.% | ≤1.2 | 0.89 |
| TiO2,% | ≤0.7 | 0.60 |
| CaO+MgO % | ≤0.5 | 0.38 |
| K2O+Na2O,% | ≤0.5 | 0.38 |
China
