Ceramic Pall Rings
Technical Data Sheet
Chemical and Physical Properties
This product has excellent acid and heat resistance. It can
standup to corrosion of various inorganic acids, organic acids and organic solvents except HF. It can be used in high or low temperature. Application ranges wide. It can be used in drying, absorbing,cooling and regenerating tower in chemical, metallurgic, coal gas and sir separation industry, etc.
& Typical chemical composition
|
SiO2 |
68-72 |
MgO |
0.6 |
|
Al2O3 |
18-22 |
CaO |
0.6 |
|
Fe2O3 |
Max. 1 |
K2O |
3.5-4.5 |
|
Na2O |
0.1-0.3 | ||
|
Soluble Fe: <0.01% | |||
|
Acid resistance: 99.5%(DIN51102 sheet 2) | |||
& Typical physical properties
|
Density |
g/cm3 |
2.3-2.4 |
|
Water Absorption |
% |
0-0.5 |
|
Compressive Strength |
N /mm2 |
300-500 |
|
E-Modulus |
GPa |
60 |
|
Mohs Hardness |
Scale |
7-8 |
|
Specific heat, 20℃-100℃ |
J/kgK |
840-920 |
|
Thermal Conductivity 30℃-100℃ |
W/mK |
1-1.5 |
|
Coefficient of thermal expension |
(20℃-600℃)10-6K-1 |
4.7 |
|
Heat Resistance |
Up to ℃ |
1000 |
& Specific properties of Ceramic Pall Rings
|
Size |
Packing density
(kg/m3) |
Spec.Surface
(m2/m3) |
Void space
(%) |
Numbers per m3
|
|
?25
25*25*3.0 |
620 |
220 |
73 |
54000 |
|
?38
38*38*4 |
570 |
150 |
75 |
13400 |
|
?50
50*50*5 |
550 |
120 |
78 |
6800 |
|
?80
80*80*8 |
520 |
75 |
80 |
1950 |