The 4A molecular sieve is an alkali metal alumino-silicate with an effective pore opening of approximately 4 angstroms (0.4 nm). The sodium form of type A is widely used as a general-purpose drying agent and has good physical and adsorption properties. Type 4A beads can be used to adsorb water, ammonia, methanol, ethanol and carbon dioxide. This type of molecular sieve is often used to remove moisture from gas and liquid streams, where co-adsorption of sulfur compounds and carbon dioxide is not a concern，dehydration in the air brake systems and natural gas drying.Our expertise in the supply of quality molecular sieves has allowed us to work with clients from all over the world.
Technical Specifications
Properties | Diameter | Static H₂O Adsorption | Bulk Density | Crush Strength | Loss on Attrition | Package Moisture |
Unit | mm | %wt | g/ml | N | %wt | %wt |
4A molecular sieve Bead | 1.7—2.5 | ≥22.0 | ≥0.74 | ≥40 | ≤0.1 | ≤1.5%wt |
3.0—5.0 | ≥22.0 | ≥0.74 | ≥85 | ≤0.1 | ≤1.5%wt |
4A molecular sieve Pellet | 1/16″ | ≥22.0 | ≥0.68 | ≥40 | ≤0.2 | ≤1.5%wt |
1/8″ | ≥22.0 | ≥0.68 | ≥85 | ≤0.3 | ≤1.5%wt |
Note | RH75%,25℃ | Settled | Average | ﹣ | 575℃，1hr |
Main Applications
Zeolite 4A Molecular Sieve Storage and Regeneration
•Storage
Because of its high and fast adsorption capacity,The product should be stored in original pack or air-proof package in cool and dry conditions should not be left exposed to open air.
•Regeneration
Molecular sieve 4A can be regenerated by increasing temperature or reducing the pressure.A properly regenerated or activated molecular sieve can give moisture dew points below -100°C. The outlet concentrations on a pressure swing process will depend on the gas present, and on the conditions of the process.