Introduction
kaolin,mainly feldspar and other silicate minerals natural alteration of the product, is a kind of hydrous aluminum silicate. It also includes dickite and nacrite and composition of halloysite and similar but amorphous aluminum water stone, so called a plant-based they belong to the clay, they are always with extremely tiny microcrystalline or aphanitic status exist, with dense clumps or soil aggregate. Kaolinite is dense or loose clumps, general for white, if contains impurities in beige. The action such as kaolinite by weathering or deposit into kaolin, and kaolin is producing ceramic materials. In addition, the kaolin also can be used as chemical packing, refractory materials, building materials, etc., application is very extensive. China jingdezhen of jiangxi province has a kaolin village, here is rich in kaolin, so named.
Specification
| Test Project |
Standard index value |
| Whiteness |
0.5% |
| Oil absorption value(g/100g) |
36.4 |
| Moisture |
0.003% |
| Screen tailings 1250um |
0.0018% |
| PH |
6.8 |
| Al2O3 |
43.32% |
| TiO2 |
0.2% |
| Fe2O3 |
0.5%MAX |
| SiO2 |
52.73% |
| MgO |
0.12% |
| K2O |
0.04% |
| CaO |
0.11% |
| Na2O |
0.04% |
Characteristics
Kaolinite with high whiteness and brightness, soft, strong water absorption, easy dispersion suspended in the water, good plasticity and high adhesion, acid and alkali resistance, good electrical insulation, strong adsorption of ions and weak cation exchange and the good properties, such as sintering property and high refractoriness.
