KAOLIN
Kaolin, or China clay is a part of Group of Minerals, which is nearly white in color. It is distinguished from other industrial clays based on its fine particle size and pure coloring. The primary constituent in kaolin is the mineral kaolinite. Kaolin has different grades for different applications.
Applications:
- Ceramics / Tiles
- Porcelain and Table ware
- Sanitary ware
- Refractories
- Glazes and Engobes
- Paper
- Paint
- Rubber
TECHNICAL DATA SHEET - KAOLIN (KN-83)
PHYSICAL PROPERTIES
Moisture 16 % | Firing at 1200 °C |
Specific Gravity 2.600 g/m3 | Fired Colour Chromameter (L) >97 % |
Bulk Density 1.000 kg/m3 | Fired Colour Blue Filter (457 nm) >83 % |
Modules of rapture 10.5 Mpa | Shrinkage 6.5 % |
Refractoriness 1760 °C | Water Absorption 22 % |
CHEMICAL ANALYSIS
Al2O3 38.0 % | K2O 0.25 % |
Sio2 46.5 % | NA2 0.03 % |
Fe2o3 <0.3 % | Loss on ignition 13.6 % |
TiO2 <1.10 % |
|
MINERALALOGICAL COMPOSITION
Kaolinite 95 % | Quartz 3% |
Muscovite < 2% | Other 1 % |
PARTICLE SIZE ANALYSIS, LAZER
Residue at 40 μm | <0.5 % |
Less than 20 μm | 84 % |
Less than 10 μm | 70% |
Less than 5 μm | 55% |
Less than 2 μm | 33% |
Less than 1 μm | 18% |
TECHNICAL DATA SHEET - KAOLIN (KC-1)
PHYSICAL PROPERTIES
Moisture 16 % Specific Gravity 2.600 g/m3 Bulk Density 1.000 kg/m3 Modules of rapture 25 Mpa Refractoriness 1760 °C | Firing at 1200 °C Fired Colour Chromameter (L) 95 % Fired Colour Blue Filter (457 nm) 81 % Shrinkage 8 % Water Absorption 20 % |
CHEMICAL ANALYSIS
Al2O3 37.0 % Sio2 47.0 % Fe2o3 0.90 % TiO2 0.60 % | K2O 0.35 % NA2 < 0.04 % Fluorite < 250 ppm Loss on ignition 13.4 % |
MINERALALOGICAL COMPOSITION
Kaolinite 92 % | Other 8% |
PARTICLE SIZE ANALYSIS, SEDIGRAPH
Residue at 40μm <0.5 % Less than 20 μm 99 % Less than 10 μm 88 % Less than 5 μm 75 % Less than 2 μm 58 % |
PARTICLE SIZE ANALYSIS, LAZER
D90 20 μm D50 5 μm D20 1.5μm D5 0.6 μm |