30-60mm Alumina 75% grinding ball used in machines
The Chemxin 75 Alumina Support Media is in chemical composition 75% 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 75 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 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.
1. Specification.
Model: |
Chemxin 90 |
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Color: |
White |
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Shape: |
Ball |
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Typical Technical Composition |
Min. % |
Min. % |
Max. % |
Usual % |
SiO2 |
****** |
****** |
4 |
2 |
Al2O3 |
75 |
75 |
75 |
75 |
Fe2O3 |
****** |
****** |
0.3 |
0.02 |
TiO2 |
****** |
****** |
0.1 |
0.02 |
CaO |
****** |
****** |
4 |
1.50 |
MgO |
****** |
****** |
0.1 |
0.05 |
Na2O |
****** |
****** |
0.25 |
0.1 |
K2O |
****** |
****** |
0.2 |
0.13 |
Physical properties | ||||
Index |
Value |
Value |
||
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 then water cooling |
10 times |
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Max. Operating Temperature |
1550°C |
2822 |
||
Specific Density |
3.2g /cm3 |
212 lb /ft3 |
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Bulk Density (Packing Density) |
1.9 g /cm3 |
125 lb /ft3 |
||
Crush Strength | ||||
Size / |
Crush Strength |
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Nominal Size |
(lbs) |
(kg) |
(N/pc) |
|
mm |
inch |
min. |
min. |
min. |
3 |
1/8" |
115 |
52 |
510 |
6 |
1/4" |
230 |
105 |
1030 |
10 |
3/8" |
440 |
200 |
1961 |
13 |
1/2" |
1355 |
615 |
6031 |
16 |
5/8" |
1720 |
780 |
7650 |
19 |
3/4" |
3344 |
1520 |
14896 |
25 |
1" |
3432 |
1560 |
15288 |
38 |
1-1/2" |
4034 |
1830 |
17946 |
50 |
2" |
4960 |
2250 |
22065 |
2. Typical Application:
a) high temperature and steam
b) has very excellent thermal properties, with its high density high-temperature resistance 1550,
c) it's suitable for applications in olefin processes, such as ethylene dryers
Package & Shipment.
Production Process.
Company information.
Certificate.
FAQ.
1).Offer samples?
---Yes.
2). Is CHEMXIN a manufacturer or trading company?
---Manufacturer.
3). How long does it take to delivery?
---In 7-10 days after receipt of 30% deposit.
4). What's your payment term?
---TT, Paypal, Western Union, L/C etc
Product Series.
Contact way.
E-mail: sales@chemxin.com
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