product description：
Activated alumina powder is a special alumina material with high specific surface area, porous structure and surface activity. Its pore size distribution is controllable (2-50nm) and its specific surface area can reach 150-400m²/g. Activated alumina powder, also known as ρ-type alumina powder, is an alumina transition phase, and its main crystal phase is ρ-type alumina base. ρ-type alumina is made of aluminum hydroxide by suspended roasting, rapid dehydration and rapid cooling. Its specific surface area is greater than 260m2/g, with strong flexibility, good water absorption and certain hydration. It can replace pure calcium aluminate cement in refractory castable binders, and can replace microsilica powder and ultrafine alumina powder in adhesives and binders.
Characteristics of activated alumina powder:
●High surface area
●Low LOI
●High AL2O3
The specification of activated alumina powder:
|
Item |
Unit |
Technical requirement |
|
Particle size |
um |
10±0.5 |
|
ρ-AL2O3 |
% |
≥65 |
|
AL2O3 |
% |
92 |
|
SiO2 |
% |
≤0.02 |
|
Fe2O3 |
% |
≤0.02 |
|
Na2O |
% |
0.30-0.4 |
|
Surface area |
㎡/g |
250-300 |
|
Pore Volume |
ml/g |
0.20-0.25 |
|
LOI |
% |
≤10 |
Note: We could manufacture activated alumina powder according to your required data.
Application of activated alumina powder:
Activated alumina powder is widely used in the industrial field due to its high specific surface area, excellent adsorption and catalytic activity.
●It can replace pure calcium aluminate cement in refractory castable binders.
●It can replace microsilica powder and ultrafine alumina powder in adhesives and binders.
●As a desiccant, it can deeply dehydrate gas and liquid, reducing the dew point of compressed air to below -40℃.
●In the field of environmental protection, it is used to remove harmful substances such as fluorine and arsenic in water.
●It is an important catalyst carrier, used in catalytic reactions such as petroleum hydrogenation and automobile exhaust purification.
●It is used as a regenerated adsorbent to treat acidic gases in petrochemicals.
●It can be used as a reinforcing filler for high-performance ceramics, polishing materials and composite materials.
Storage of activated alumina powder:
●Avoid moisture, avoid scrolling, throw and sharp shocking during transportation, rainproof facilities should be readied..
●It should be stored in dry and ventilated warehouseto prevent contamination or moisture.
Package of activated alumina powder:
|
Type |
Plastic bag |
Super sack/Jumbo bag |
|
Powder |
25kg/55lb |
1000kg/ 2200 lb |
FAQ：
Q:Is activated alumina powder rho alumina powder?
A: Yes, they are the same.
Q: Do you produce activated alumina powder directly'?
Yes, we produce activated alumina powder firstly for our next activated alumina beads.
Q: Can you provide samples?
Yes, please contact us.
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