Activated Alumina Molecular Formula: Al2O3. n H2O (0<n≤0.8) Physical Properties
|
|
1 |
2 |
3 |
4 |
5 |
|
Appearance |
White, Sphere, No odor, Insoluble in water, innocuous |
|
Chemical Composition |
Al2O3% |
≥93 |
≥93 |
≥93 |
≥93 |
≥90 |
|
Na2O% |
≤0.3 |
≤0.3 |
≤0.5 |
0.15-0.3 |
≤0.3 |
|
LOI |
% |
6-8 |
6-8 |
≤8 |
≤5 |
6-8 |
|
Bulk Density |
g/ml |
0.68-0.72 |
0.7-0.75 |
0.65-0.75 |
0.70-0.80 |
0.68-0.72 |
|
Surface Area |
M2/g |
≥280 |
≥280 |
200-260 |
≥200 |
≥300 |
|
Pore Volume |
ml/g |
0.3-0.45 |
0.3-0.42 |
0.4-0.46 |
0.4 |
0.3-0.5 |
|
Static Absorption (RH=60%) |
% |
Water absorption
15-17 |
Fluorine absorption
0.12 |
Water absorption
50 |
Water absorption
50-70 |
Water absorption
17-19 |
|
Active |
% |
56-62 |
|
Attrition Loss |
% |
≤1.0 |
≤1.0 |
≤1.0 |
≤0.4 |
≤0.8 |
|
Crushing Strength |
Φ1-2 |
≥40 |
≥40 |
|
|
|
|
Φ2-3 |
≥60 |
≥60 |
|
|
|
|
Φ3-5 |
≥100 |
|
≥100 |
≥100 |
≥100 |
|
Φ4-6 |
≥120 |
|
≥130 |
≥120 |
≥110 |
Item 1: is used as adsorbent
Item 2: is for defluorination
Item 3: is for absorption in producing hydrogen peroxide
Item 4: is for catalyst carrier
Item 5: is for dehydrating and drying in air separation etc. |