Property
High Temperature Calcined α-Alumina (α-Al2O3), it has many different name, High Temperature α-Alumina, Calcined Alumina, White Fused alumina, Calcined α-Alumina,
Calcined Alumina, is made of aluminum oxide powder and aluminum hydroxide powder as raw materials, using high temperature tunnel kiln calcining process at 1450℃, adding special additives to reduce the content of impurities, improve the alpha conversion rate, control the irregular change of primary crystal, greatly increasing the holding time, grinding and grading by high aluminum ball mill.
Features
High purity, high whiteness, high true ratio, good thermal stability, uniform particle size distribution and good fluidity.
Application
The products are used in ceramics, electric porcelain, refractory materials, spark plugs, brake pads, high aluminum products, advanced insulating parts, high purity refractory fiber, high-grade castable, grinding and polishing, artificial stone, electronic heat conduction, etc.
Specification
| Specification | Unit | Type A | Type B | Type C | Type D | Type E | Type F |
| Al2O3 | % | 99.5 | 99.5 | 99.5 | 99.6 | 99.5 | 99.6 |
| Na2O | % | 0.25 | 0.35 | 0.35 | 0.25 | 0.1 | 0.05 |
| SiO2 | % | 0.02 | 0.02 | 0.02 | 0.02 | 0.02 | 0.02 |
| Fe2O3 | % | 0.02 | 0.02 | 0.02 | 0.02 | 0.02 | 0.02 |
| TiO2 | % | 0.007 | 0.007 | 0.007 | 0.007 | 0.007 | 0.007 |
| LOI | % | 0.1 | 0.15 | 0.12 | 0.12 | 0.25 | 0.25 |
| BET | m2/g | 0.5 | 1 | 1.7 | 1.5 | 3 | 4.5 |
| <10um | % | 90 | 90 | ||||
| >200mesh | % | 55 | 60 | ||||
| >325mesh | % | 80 | 85 | 0.2 | 0.1 |
Comments: 25kg or 1000-1500kg bags
