molecular sieve 4A

Chemical formula of molecular sieve 4A: Na2O·Al2O3·2SiO2·9/2H2O Technical data of molecular sieve 4A: ParameterUnitBeadPelletDiameterMesh8*124*81/16"1/8"Water adsorption capacity≥ %wt21212121Methanol adsorption capacity≤ mg/g140140140140Bulk density≥ g/ml0.660.660.640.64Strength≥ N40904085Abrasion≤ %wt0.10.10.20.2Water content≤ %wt1.51.51.51.5 Application of molecular sieve 4A: 1.Desiccant for gas and other material; 2.Adsorbent for Ar purification and for the separation of methane, ethane and propane Reactivation of molecular sieve 4A: 1.Removal of water: Hot gas at 200-350°C and pressure 0.3-0.5Kg/cm2 flows through the molecular sieve bed for 3-4 h. let temperature decreases down to 110-180°C, cooling 2. Removal of organics: Regeneration is achieved by means of steam treatment to remove organics, and then remove water with method 1 Conservation of molecular sieve 4A: 1.Room temperature, humidity <90%, non-expose to air; 2.Non-contact with water, acid and alkali