Rasching rings
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Description
Rasching rings
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 Rasching Rings
| Size | Packing density
(kg/m³) |
Spec.surface
(m²/m³) |
Void space
(%) |
Numbers per m³
|
| Ø3.5
3.5*3.5*0.8 |
1100 | 890 | 73 | 18650000 |
| Ø6
6*6*0.8 |
1050 | 790 | 73 | 3110000 |
| Ø8
8*8*1 |
890 | 710 | 70 | 1562500 |
| Ø10
10*10*1.2 |
850 | 460 | 70 | 800000 |
| Ø12
12*12*1.4 |
810 | 390 | 71 | 579000 |
| Ø15
15*15*1.5 |
780 | 350 | 70 | 195000 |
| Ø16
16*16*2 |
730 | 305 | 73 | 192500 |
| Ø25
25*25*2.5 |
616 | 235 | 78 | 39000 |
| Ø38
38*38*3.5 |
572 | 195 | 76 | 14600 |
| Ø40
40*40*5 |
577 | 188 | 75 | 12700 |
| Ø50
50*50*5 |
528 | 150 | 81 | 5280 |
| Ø80
80*80*9.5 |
870 | 110 | 68 | 1950 |
| Ø100
100*100*10 |
800 | 95 | 70 | 1000 |
| Ø120
120*120*12 |
670 | 85 | 60 | 580 |
| Ø150
150*150*15 |
830 | 68 | 50 | 296 |
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Rasching rings