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| Material: | Ceramic |
| Usage: | Chemical Engineering, Chemical Industry Product |
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Zhongci 3mm 10mm 25mm 90% Al2O3 High Alumina Ceramic Tower Packing Balls As Catalyst Bed Support Media
The Zhongci 90 High Alumina Support Media is in chemical composition90+% alpha alumina and a maximum 0.2wt% SiO2 . Because of its high alumina content and low silica (SiO2 ), it's a very excellent and ideal product for high temperature and steam applications, such as secondary reformers in ammonia processing, where leached silica will coat downstream equipment or foul the catalyst bed.
The Zhongci 90 High Alumina Support Media has very excellent thermal properties, with its high density high-temperature resistance 1550ºC, also it's a good choice for heat retention or equilibration media.
For its superior chemical resistance, it's suitable for applications in olefin processes, such as ethylene dryers, where there's the polymerization problem.
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Model: |
Zhongci 90 |
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Color: |
White |
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Shape: |
Ball |
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Typical Technical Composition |
Min. % |
Max. % |
Usual % |
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SiO2 |
****** |
4 |
2 |
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Al2O3 |
90 |
92 |
90.8 |
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Fe2O3 |
****** |
0.3 |
0.02 |
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TiO2 |
****** |
0.1 |
0.02 |
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CaO |
****** |
4 |
1.5 |
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MgO |
****** |
0.1 |
0.05 |
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Na2O |
****** |
0.25 |
0.1 |
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K2O |
****** |
0.2 |
0.13 |
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Physical properties |
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Index |
Value |
Value |
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Leachable Iron |
≤ 0.01% |
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Apparent Porosity by Weight |
≤ 7.0% |
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Moh's Hardness Scale |
>8.0 |
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Water Absorption |
<4.0wt.% |
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Acid Resistance |
>99.8% |
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Thermal Conductivity |
0.7-0.8 w/m2 .k |
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Thermal Expansion @ 500ºC |
0.10% |
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Thermal Shock Stability, 1000 ºC then water cooling |
10 times |
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Max. Operating Temperature |
1550°C |
2822 |
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Specific Density |
3.2g /cm3 |
212 lb /ft3 |
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Bulk Density (Packing Density) |
1.9g /cm3 |
125 lb /ft3 |
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Size / |
Crush Strength |
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Nominal Size |
(lbs) |
(kg) |
(N/pc) |
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mm |
inch |
min. |
min. |
min. |
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3 |
1/8" |
115 |
52 |
510 |
|
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6 |
1/4" |
230 |
105 |
1030 |
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10 |
3/8" |
440 |
200 |
1961 |
|
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13 |
1/2" |
1355 |
615 |
6031 |
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16 |
5/8" |
1720 |
780 |
7650 |
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19 |
3/4" |
3344 |
1520 |
14896 |
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25 |
1" |
3432 |
1560 |
15288 |
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38 |
1-1/2" |
4034 |
1830 |
17946 |
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50 |
2" |
4960 |
2250 |
22065 |
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Typical Application:
a) high temperature and steam
b) has very excellent thermal properties, with its high density high-temperature resistance 1550ºC,
c) it's suitable for applications in ole fin processes, such as ethylene dryers
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