Column Packing
Column Packing
- Product Code : Column Packing
- Availability : In Stock
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Due to their low bulk densities, glass raschig rings are particularly suitable for packing glass columns. The ratio of column diameter to packing diameter should not be less then 8:1.
The technical detail of the raching rings are listed in the table below.
| Size | Bulk density (kg/l) | Specific surface (m2/m3) | Wall thickness (t) | Reference | |
|---|---|---|---|---|---|
| 8 x 8 | 0.68 | 500 | 1.0 | GSFC 8 |
|
| 10 x 10 | 0.58 | 450 | 1.0 | GSFC 12 | |
| 15 x 15 | 0.44 | 300 | 1.6 | GSFC 15 | |
| 20 x 20 | 0.28 | 280 | 1.1 | GSFC 20 | |
| 25 x 25 | 0.27 | 200 | 2.0 | GSFC 25 | |
| 30 x 30 | 0.40 | 176 | 2.0 | GSFC 30 | |
| 40 x 40 | 0.29 | 160 | 1.75 | GSFC 40 | |
| 50 x 50 | 0.32 | 120 | 2.0 | GSFC 50 |
Packing requirement for various column section(kgs.)
| Column section size | Packing size (mm) | ||||||||
|---|---|---|---|---|---|---|---|---|---|
| Vol liter | GSFC 8 | GSFC 12 | GSFC 15 | GSFC 20 | GSFC 25 | GSFC 30 | GSFC 40 | GSFC 50 | |
| GSCS 3/1000 | 4.4 | 2.6 | 2.2 | 3.3 | 2.0 | 1.2 | 1.8 | 1.2 | 1.1 |
| GSCS 4/1000 | 7.6 | 4.6 | 3.8 | 5.7 | 3.4 | 2.1 | 3.0 | 2.1 | 1.9 |
| GSCS 6/1000 | 15.5 | 9.3 | 7.8 | 11.6 | 7.0 | 4.2 | 6.2 | 4.2 | 3.9 |
| GSCS 9/1000 | 31.8 | 19.1 | 15.9 | 23.9 | 14.3 | 8.6 | 12.7 | 8.6 | 8.0 |
| GSCS 12/1000 | 61.9 | 37.1 | 31.0 | 46.4 | 27.9 | 16.7 | 24.8 | 16.7 | 15.5 |
| GSCS 16/1000 | 110 | 66.0 | 55.0 | 82.5 | 49.5 | 29.7 | 44.0 | 29.7 | 27.5 |
| GSCS 18/1000 | 145 | 87.0 | 72.5 | 108.8 | 65.3 | 39.2 | 58.0 | 39.2 | 36.3 |
| GSCS 24/1000 | 255 | 153.0 | 127.5 | 191.3 | 114.8 | 68.9 | 102.0 | 68.9 | 63.8 |
Notes of use of column packing
Generally, the ratio of Column diameter to packing diameter should not be less than 8:1.
When using smaller packing size, a small layer of larger packing should be used on Packing support, to prevent the smaller packing falling through.
Due to their low bulk densities, Glass Rachig rings are particularly suitable for packing glass columns.
In vacuum application and applications involving high vapour velocities, packing may be , lifted and may damage to other parts. To prevent this, a packing retainer ( PTFE perforated plates ) should be used.