Original
By certification 
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23% Al2O3 inert alumina ceramic balls (catalyst support medium), using the characteristics of ceramic products, have good heat resistance, good strength, and are not easy to react. The alumina standard is an important chemical composition requirement in the national standard. Alumina ranges from 17% to 99%. Because of its different content, other properties of ceramic balls are also different.
23% Al2O3 inert alumina ceramic balls have excellent consistency and reliability, and are the most widely used catalyst support media in the world. It is made of very high-quality chemical china clay material, which has excellent stability, high mechanical strength and thermal shock resistance, and is an ideal carrier for various catalysts.
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Item |
Al2O3+SiO2 |
Al2O3 |
Fe2O3 |
MgO |
K2O+Na2O+CaO |
Other |
|
|
Content |
> 93% |
20-24% |
<1% |
<0.5% |
<4% |
<1% |
|
|
Leach able Fe2O3 is less than 0.1%. |
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Item |
Value |
|
Water absorption (%) |
<0.5 |
|
Bulk density (g/cm3) |
1.35-1.4 |
|
Specific gravity (g/cm3) |
2.3-2.4 |
|
Free volume (%) |
40% |
|
Operation temp. (max) (℃) |
1200 |
|
Moh's hardness (scale) |
>6.5 |
|
Acid resistance (%) |
>99.6 |
|
Alkali resistance (%) |
>86 |
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Size |
Crush strength |
|
|
Kg/particle |
KN/particle |
|
|
1/8" (3mm) |
>35 |
>0.35 |
|
1/4" (6mm) |
>60 |
>0.60 |
|
3/8" (10mm) |
>85 |
>0.85 |
|
1/2" (13mm) |
>185 |
>1.85 |
|
3/4" (19mm) |
>487 |
>4.87 |
|
1" (25mm) |
>850 |
>8.5 |
|
1-1/2" (38mm) |
>1200 |
>12 |
|
2" (50mm) |
>5600 |
>56 |
|
Other size can be customize. |
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Size and tolerance (mm) |
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|
Size (mm) |
3/6/9 |
9/13 |
19/25/38 |
50 |
|
Tolerance |
± 1.0 |
± 1.5 |
± 2 |
± 2.5 |
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