Kaolin
Kaolin Rokle is a special paper filling kaolin. Its typical properties are low abrasion and high whiteness. In 2003, mining began in the new Rokle deposit, which is located near Kadaň and provides high-quality kaolin, sought after primarily by manufacturers of paper, coatings and other products for its high whiteness and low abrasiveness. It also enables the production of metakaolin and other ceramic non-plastic raw materials.
Packaging and shipping
- Kaolin is supplied as granules in the form of dried noodles.
- Loosely loaded into wagons or trucks.
- Filling into big bag packaging (approx. 1 t).
- Storage life is unlimited in a dry environment.
Technical information parameters
| Product | Loss on ignition 900˚C (%) |
Brightness (R 457 % abs.) |
Abrasion (AT 1000 mg) |
Moisture (%) |
Specific surface Sg (m2/g) |
Grain fineness > 0,045 mm (%) |
Grain fineness < 2 mm (%) |
| Kaolin Rokle |
12,84 | min. 79 | max. 15 | max. 12 | 10,7 | max. 0,05 | min. 50 |
Chemical analysis - informative values
| Product | SiO2 (%) |
Al2O3 (%) |
Fe2O3 (%) |
TiO2 (%) |
CaO (%) |
MgO (%) |
K2O + Na2O (%) |
pH |
| Kaolin Rokle |
52,25 | 43,20 | 1,20 | 0,57 | 0,14 | 0,24 | 1,01 | 6,5 – 8,5 |
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