Hydraulic alumina powder is produced from Aluminum Hydroxide by quick dehydration process, its phase is ρ-Al2O3, with hydration activity at normal temperature, mainly used as the raw material of activated alumina ball and calcium-free binder for amorphous refractory castable.
| Applications | ρ-Al2O3 | SiO2 | Fe2O3 | Na2O | L.O.I | BET
m2/g |
Pore Volume ml/g | D50 μm |
| for Activated Alumina | ≥60 | ≤0.05 | ≤0.02 | ≤0.40 | ≤12 | ≥260 | ≥0.18 | 8-12 |
| For amorphous
refractory binder |
≥60 | ≤0.05 | ≤0.02 | ≤0.30 | ≤12 | ≥240 | ≥0.18 | ≤6 |
