Calcined Kaolin For Refractory
We use superior kaolinite material, it is produced with processes of ball milling, calcining and classifying. With the properties of high brightness, low iron and titanium contents, high opacity and good dispersibility.
Calcined Kaolin is one of the oldest and most widely used refractory products. It is used as moulding sand in foundries and for acid-resistant bricks. It can also be used in the manufacture of paints or paper.
Item Value ISO Brightness 91±1% D50 (μm) ≤3.2 Screen Residue, 325 Mesh ≤0.05% Oil Absorption (g/100g) 45±5 LOI 0.50% Free Moisture @ 105 °C as produced ≤0.50% pH 6.0-8.0 Specific Gravity (g/cm³) 2.7 Fractions 1250 mesh Chemical Composition:
SiO₂ (%) Al₂O₃ Fe₂O₃ TiO₂ CaO MgO Na₂O K₂O 52±2 45±2 ≤0.6 ≤1.2 ≤0.5 ≤0.2 ≤0.2 ≤0.5 *Fractions: 200, 325, 800, 1250, 2000, 4000, 6000 mesh
*We can offer customized as per specific requirements.
Packaging:
25 kg woven bags or 1000kg big bags on pallets.













