Inert alumina ceramic ball
The inert alumina ceramic ball is broadly utilized as the covering or supporting materials of the catalyst in the reactors and the packing in the columns in such varied areas, for example, petroleum, chemical industry, chemical fertilizer, natural gas, and environmental protection etc.
Chemical constitutions
Chemical compositions |
Content |
AL203 |
(Standard value +4)% |
Al2O3+SiO2 |
>=92% |
Fe2O3 |
<1% |
Physical and chemical properties
| MAIN CRYSTAL PHASES | Feldstar | Feldstarmullite | Mullite | Mullite corundum | Corundum | |
| Al2O3Property | 20 - 25 |
25 - 45 |
45 - 70 |
70 - 90 |
>90 |
|
| Bulk density(g/cm3) | Bulk density(g/cm3) |
|||||
| Water sorption( %) | <3 |
<1 |
||||
| Acid resistance(%) | >98 |
|||||
| Alkali resistance(%) | >80 |
>82 |
>85 |
>90 |
>95 |
|
| Spalling resistance(℃) | >250 |
>300 |
>500 |
>700 |
>900 |
|
| Refactoriness(℃) | >1300 |
>1400 |
>1500 |
>1600 |
>1700 |
|
| Crushing strength,KN/particle | ø6 | >0.40 |
>0.45 |
>0.6 |
>0.7 |
>0.8 |
| ø8 | >0.7 |
>0.8 |
>0.9 |
>1.0 |
>1.2 |
|
| ø10 | >0.9 |
>1.0 |
>1.2 |
>1.5 |
>1.8 |
|
| ø13 | >1.2 |
>1.3 |
>1.6 |
>1.8 |
>2.0 |
|
| ø16 | >1.5 |
>1.6 |
>1.8 |
>2.3 |
>2.6 |
|
| ø20 | >1.8 |
>2.0 |
>2.3 |
>2.8 |
>3.20 |
|
| ø25 | >1.8 |
>2.8 |
>3.2 |
>3.6 |
>4.0 |
|
| ø30 | >2.8 |
>3.0 |
>3.5 |
>4.0 |
>4.5 |
|
| ø38 | >4.0 |
>4.5 |
>5.0 |
>5.5 |
>6.0 |
|
| ø50 | >6.0 |
>6.2 |
>10.0 |
>10.5 |
>11.0 |
|
| ø60 | >8.0 |
>8.5 |
>11.0 |
>12.0 |
>14.0 |
|
| ø75 | >13.0 |
>11.0 |
>12.0 |
>14.0 |
>15.0 |
|
Note:
It may only be provided as the reference for the bulk density, and it is not as the evidence of check.
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