Activated alumina ρ- Al2O3( Rho alumina )for refractory binder,
pho alumina powder, ρ- Al2O3,
The product is activated alumina powder from aluminum hydroxide rapid dehydration production , its main phase rho ρ- Al2O3, content is 70-85% commonly, specific surface area is in commonly 220 m2 / g above, has strong activity and water absorption performance, and has certain hydration activity, mainly used as the material of activated alumina ball, amorphous refractory castable binder, high-grade ceramic binder, the raw material of catalyst carrier, etc.The main crystal phase was χ -p alumina.
Production specification：
| crystal phases | ||||||||
| Chemical composition | BET | Pore volume | Particle size | |||||
| m2/g | ml/g | D50μm | ||||||
| ρ-Al2O3 | SiO2 | Fe2O3 | Na2O | L.O.I | ≥ | ≥ | ||
| ≥ | ≤ | ≤ | ≤ | ≤ | ||||
| ρ-Al2O3 | 60* | 0.05 | 0.02 | 0.4 | 10 | 200 | 0.16 | 6～12 |
| Result | 75 | 0.01 | 0.008 | 0.35 | 8 | 240 | 0.2 | 10 |
| *Comment：60 is for the ρ-Al2O3 composition | ||||||||
