Also known as Dixon (Dixon) packing, is a small particles of efficient packing, made of wire mesh or piercing-hole plate, the diameter and height of the packing is equal, mainly used in the laboratory and small batch packing, high purity product separation process.

the pressure drop of refillers is related to factors such as gas velocity, liquid spray amount, weight of material system, surface tension, viscosity, and properties of the fillers, as well as being related to preflooding treatment of the fillers.The conditions of the following data are operated under full reflux, and the operating pressure is normal pressure for reference
Φ 1.5 x 1.5 Φ pressure drop in the 13 mm Φ tower is 70 ~ 400 mmh2o/m (cresyl ethane) Φ 2.5 x 2.5 in the 50 mm Φ tower pressure drop is 55 ~ 250 mmh2o/m (cresyl ethane) Φ 4 x 4 pressure drop in the 50 mm Φ tower is 30 ~ 200 mmh2o/m (water)