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Inert ceramic balls are widely used support media in the world because of their excellent consistence and reliability. Products to these specifications are manufactured from very high quality chemical-porcelain clay materials, which has quite excellent stability, high mechanical strengthand resistance to thermal shock. This makes them all ideal choice for support of all types of catalyst.
Chemical composition
|
|
Min. % |
Max. % |
Usual % |
|
SiO2 |
64.00 |
75.00 |
68.40 |
|
Al2O3 |
19.00 |
26.00 |
24.50 |
|
Fe2O3 |
****** |
0.12 |
0.10 |
|
TiO2 |
****** |
1.40 |
0.96 |
|
CaO |
****** |
0.65 |
0.42 |
|
MgO |
****** |
0.60 |
0.38 |
|
Na2O |
****** |
2.00 |
1.12 |
|
K2O |
****** |
3.50 |
3.28 |
|
Al2O3 + SiO2 |
90.00 |
96.00 |
92.90 |
Physical properties
|
Index |
Value |
Value |
|
Leachable Iron |
≤ 0.1% |
****** |
|
Apparent Porosity by Weight, dia. ≥ 10mm |
≤ 0.4% |
****** |
|
Apparent Porosity by Weight, dia. = 6mm |
≤ 1.0% |
****** |
|
Apparent Porosity by Weight, dia. = 3mm |
≤ 1.0% |
****** |
|
Moh's Hardness Scale |
>6.5 |
****** |
|
Water Absorption |
<1.0wt.% |
****** |
|
Acid Resistance |
>99.8% |
****** |
|
Thermal Conductivity |
0.9-1.0 w/m 2 .k |
****** |
|
Thermal Expansion @ 500 |
0.20% |
****** |
|
Specific Heat |
628-837 j/kgq |
****** |
|
Thermal Shock Stability, 500 then water cooling |
10 times |
****** |
|
Max. Operating Temperature |
1050 |
1922 |
|
Specific Density |
2,350 kg /m3 |
146 lb /ft3 |
|
Bulk Density (Packing Density) |
1,400 g /cm3 |
87 lb /ft3 |
Crush Strength
|
|
Crush Strength | |||
|
Nominal Size |
(lbs) |
(kg) |
(N/pc) | |
|
mm |
Inch |
min. |
min. |
min. |
|
3 |
1/8 |
50 |
23 |
225 |
|
6 |
1/4 |
123 |
56 |
550 |
|
10 |
3/8 |
202 |
92 |
902 |
|
13 |
1/2 |
385 |
175 |
1716 |
|
16 |
5/8 |
520 |
236 |
2315 |
|
19 |
3/4 |
978 |
444 |
4355 |
|
25 |
1 |
1428 |
648 |
6355 |
|
38 |
1-1/2 |
2020 |
916 |
8983 |
|
50 |
2 |
2987 |
1355 |
13288 |
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