Calcined active α-alumina microspheres

Catalyst Carrier
After high temperature calcination, the quality is extremely hard, but it has a special specific surface area, pore volume and pore size. It can eliminate the diffusion effect in the gap. In the process for selective oxidation, it can reduce the side reactions of deep oxidation, and can form a special shell structure during the impregnation process, which effectively improves the reaction performance.

Product Description

Product performance


After high temperature calcination, the quality is extremely hard, but it has a special specific surface area, pore volume and pore size. It can eliminate the diffusion effect in the gap. In the process for selective oxidation, it can reduce the side reactions of deep oxidation, and can form a special shell structure during the impregnation process, which effectively improves the reaction performance.


Application area


Silver catalyst support, precious metal catalyst support for the oxidation of ethylene to ethylene oxide, and special catalyst support in the chemical industry.


Technical specification


Item
Al2O3
Size (mm)
2-3/3-4/4-5/5-6
Surface area (m2/g)
1-30
Crushing strength (N/Particle)
>40/60/80/100
L.O.I  (%)
≤1
Bulk density (g/cm)
0.90-0.95/0.8-1.0/0.85-0.95/0.85-0.90
Water absorption (%)
≤1


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