Ceramic raschig ring is the first development of random packing. Its simple shape, its height and diameter are equal. Raschig rings large size (100mm or more) means the general rules by filling the entire puzzle, 90mm size raschig rings generally use the following method loading number.
Physical Properties
Chemical Analysis
Dimension and Other Physical Properties
Physical Properties
Item | Value |
Water absorption | <0.5% |
Apparent porosity (%) | <1 |
Specific gravity | 2.3-2.35 |
Operation temp.(max) | 1000ºC |
Moh's hardness | >6.5 scale |
Acid resistance | >99.6% |
Alkali resistance | >85% |
Chemical Analysis
Al2O3 | SiO2 | Fe2O3 | CaO | MgO | K2O + Na2O | Other |
17-23% | >70% | <1.0% | <1.% | <0.5% | <3.5% | <1% |
Dimension and Other Physical Properties
Sizes (mm) |
Thickness (mm) |
Surface area (m2/m3) |
Free volume (%) |
Number per m3 |
Bulk density (kg/m3) |
Packing factor ( m-1) |
6 × 6 | 1.6 | 712 | 62 | 3022935 | 1050 | 5249 |
12.5 ×12.5 | 2.4 | 367 | 64 | 377867 | 881 | 1903 |
16×16 | 2 | 305 | 73 | 192 500 | 730 | 900 |
19×19 | 2.4 | 243 | 72 | 109122 | 801 | 837 |
25×25 | 3.2 | 190 | 74 | 47675 | 673 | 508 |
38×38 | 4.8 | 121 | 73 | 13667 | 689 | 312 |
40×40 | 4.5 | 126 | 75 | 127000 | 577 | 350 |
50×50 | 4.5 | 93 | 81 | 6000 | 457 | 220 |
50×50 | 6.4 | 92 | 74 | 5792 | 657 | 213 |
80×80 | 9.5 | 46 | 80 | 1910 | 714 | 280 |
100×100 | 10 | 70 | 70 | 1000 | 700 | 172 |