3-5mm 99% Ceramic Ball for Aircraft Industry
3-5mm 99% ceramic ball for aircraft industry
Product Description.
The Chemxin 99 High Alumina Support Media is in chemical composition 99+% 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 Chemxin 99 High Alumina Support Media has very excellent thermal properties, with its high density high-temperature resistance 1550℃, also it's a good choice for heat retention or deceleration media.
High-alumina ceramic balls are also often used as fillers and support materials. In tower reactors, packed towers and other equipment, high-alumina ceramic balls can effectively increase the reaction area and promote the uniform distribution of fluids, thereby improving mass transfer and heat transfer efficiency. In addition, due to its excellent mechanical strength and chemical stability, high-alumina ceramic balls can operate stably for a long time in equipment such as packed towers, reducing the maintenance cost of equipment.
For its superior chemical resistance, it's suitable for applications in ole fin processes, such as ethylene dryers, where there's the polymerization problem.
1. Specification.
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Model: |
99% Al2O3 ceramic ball |
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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 |
****** |
0.2 |
0.18 |
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Al2O3 |
90 |
99.6 |
99.3 |
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Fe2O3 |
****** |
0.2 |
0.02 |
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TiO2 |
****** |
0.55 |
0.02 |
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CaO |
****** |
0.1 |
0.2 |
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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 @ 500℃ |
0.10% |
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Thermal Shock Stability, 1000 ℃ |
10 times |
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Max. Operating Temperature |
1550°C |
2822 |
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Specific Density |
3.4g /cm3 |
212 lb /ft3 |
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Bulk Density (Packing Density) |
2.1g /cm3 |
131 lb /ft3 |
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2. Typical Application:
a) high temperature and steam for air craftindustry.
b) has very excellent thermal properties, with its high density high-temperature resistance 1550℃, c) it's suitable for applications in ole fin processes, such as ethylene dryers
Product Series.
Contact way.
E-mail: sales@chemxin.com
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