Activated alumina is manufactured from aluminium hydroxide by dehydroxylating it in a way that produces a highly porous material; this material can have a surface area significantly over 200 m²/g. The compound is used as a desiccant (to keep things dry by absorbing water from the air) and as a filter of fluoride, arsenic and selenium in drinking water. It is made of aluminium oxide (alumina; Al
2O
3). It has a very high surface-area-to-weight ratio, due to the many "tunnel like" pores that it has. Activated alumina in its phase composition can be represented only by metastable forms (gamma-Al
2O
3 etc.). Corundum (alpha-Al
2O
3), the only stable form of aluminum oxide, does not have such a chemically active surface and is not used as a sorbent.
Application:
Activated alumina is used for a wide range of adsorbent and catalyst applications including the adsorption of catalysts in polyethylene production and hydrogen peroxide production, as a selective adsorbent for many chemicals including arsenic, fluoride, sulfur removal from fluid streams (Claus Catalyst process).
Specification
Item |
Al2O3 % |
BET
m²/g |
Bulk Density
g/ml |
Crushing
Strength N/particle |
Abrasion
Loss % |
Particle Size
mm |
AT-AD-1 |
≥92 |
≥300 |
0.70-0.80 |
≥60 |
≤0.3 |
φ1-3 |
≥92 |
≥300 |
0.70-0.80 |
≥100 |
≤0.3 |
φ2-4 |
≥92 |
≥300 |
0.70-0.80 |
≥140 |
≤0.3 |
φ3-5 |
≥92 |
≥300 |
0.70-0.80 |
≥180 |
≤0.3 |
φ4-6 |
≥92 |
≥280 |
0.70-0.80 |
≥220 |
≤0.3 |
φ5-7 |
FAQ
Q: Are you factory?
A: Yes. sure
Q: Can you supply free samples?
A: 1kgs free sample is available, but freight charges will be at your account, The charges will be
return to you or deduct from your order in the future.
Q: What about the payment?
100% T/T in advance, 30% T/T in advance, the balance 70% against the B/L copy, Irrevocable L/C at sight.
Q: The MOQ is?
A: MOQ is usually 1 ton, special products can be coordinated with each other.
Q: Can I visit your factory?
A: Yes, we welcome you to visit our factory at anytime.
Q: How about your delivery time?
A: Usually the shipment is within 15 days after confirming receipt of your payment, some products maybe need longer time.