Industrial Grade High-alumina Calcined Kaolin for Casting and Refractories(0-1 mm,1-3 mm,3-5 mm)
1. Production Introduction and Application
Calcined Kaolin 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.
The size of particles: 0-1mm,1-3mm,3-5mm,5-8mm,8-15mm,0-5mm,0-50mm can be used for refractories and casting material.
Calcined Kaolin with high purity is white. Kaolin whiteness, natural whiteness, and whiteness after calcination. For ceramic raw materials, the whiteness of calcined is more important, the higher the whiteness of calcined, the better the quality.
Ceramics, rubber, plastics, artificial leather, cement, refractory materials, chemical industry and agriculture are widely used.
2. Specification
| AL2O3 % | 46-48 | 45-48 | 44-48 | 44-48 | 43-48 | 42-46 | 40-46 | 36-42 |
| SiO2 % | 49-52 | 49-52 | 50-53 | 50-53 | 50-53 | 50-53 | 50-54 | 50-55 |
| Fe2O3 % (max) | 1.0 | 1.15 | 1.3 | 1.5 | 2.0 | 2.5 | 3.0 | 3.5 |
| Ti02 % (max) | 0.8 | 0.8 | 0.9 | 0.9 | 1.0 | 1.1 | 1.2 | 1.3 |
| K2O+Na2O % (max) | 0.3 | 0.3 | 0.4 | 0.4 | 0.4 | 0.5 | 0.5 | 0.6 |
| Ca0+Mg0 % (max) | 0.5 | 0.5 | 0.5 | 0.5 | 0.5 | 0.6 | 0.7 | 0.8 |
| Bulk density g/cm³(min) | 2.58 | 2.55 | 2.52 | 2.50 | 2.45 | 2.40 | 2.37 | 2.30 |
| Refractoriness °C(min) | 1780 | 1770 | 1760 | 1750 | 1740 | 1720 | 1710 | 1700 |
| Impurities % (max) | 0.5 | 1.5 | 2.0 | 2.5 | 3.0 | 3.5 | 4.0 | 4.5 |
0-1mm
1-3mm
3-5mm
5-8mm
We have different grades of mullite sand for you to choose.
3. Characteristics:
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.
4. Our company
Our mine company was established in September 2003,is an international trade company combined with production, processing and sale. In 2018,its trading company ,Qingdao Jinjunxuan International Trade Co.,ltd,Its main products include flint clay, high bauxite, synthetic mullite precision foundry sand, refractory product, casting refractory material, refractory fiber and other refractory raw materials.
The above products are used in many kinds of field including metallurgy, non-ferrous metal, generating electricityfoundry and so on. The market covers many countries and areas in the world such as European Union, South Africa, Japan, Australia, Thailand, Malaysia India, China Taiwan and also more than ten cities.
5. Our package
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