Raschig ring is the earliest developed random packing,it’s small tube cutting, which outside diameter is equal to its height, providing a surface for (re)evaporation of the most volatile part in the refluxing distillate.With the characters of high mechanical strength, high chemical stability, and excellent heat endurance, Ceramic Raschig Ring can resist high temperature, acid (except HF), alkali, salt and various organic solvents. It’s widely applied in various packing towers of desiccation, absorption, cooling, washing, and regeneration in industries of petrochemical, chemical, metallurgy, gas and oxygen generation. For raschig ring with big size over 100mm, it’s usually filled in the column orderly. If its size is less than 90mm, raschig ring is stacked in the column randomly.
Dimension and Other Physical Properties
Sizes | Thickness | Surface area | Free volume | Number | Bulk density | Packing factor |
(mm) | (mm) | (m2/m3) | (%) | per m3 | (kg/m3) | ( 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 |
Chemical Analysis
Al2O3 | SiO2 | Fe2O3 | CaO | MgO | K2O + Na2O | Other |
17-23% | >70% | <1.0% | <1.% | <0.5% | <3.5% | <1% |
The packing can be used in the drying columns, absorbing columns, cooling towers, scrubbing towers and actifier columns in chemical industry, metallurgy industry, coal gas industry, oxygen producing industry, etc.