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Introduction of Molecular Sieve 4A Molecular Sieve type 4A (Angstrom) is an alkali alumino silicate, obtained through synthesis of type A zeolite in sodic form. it is the sodium form of the Type A crystal structure. 4A molecular sieve has an effective pore opening of about 4 angstroms (0.4nm). Galaxychem type 4A molecular sieve will adsorb most molecules with a kinetic diameter of less than 4 angstroms and exclude those larger.
Typical application:
Will adsorb, in sequence of adsorption rate, argon, krypton, xenon, ammonia, carbon monoxide, C2H4, C2H2, CH3OH, C2H5OH, CH3CN2, CS2, CH3CL, CH3Br, and carbon dioxide.
Deep drying of air, natural gas, alkane and refrigerant. Generation and purification of argon. Static dehydration of electronic element, pharmaceutical and unstable materials. Desiccant of paint, PU Plastic, dope and fuel etc.Formula: Al2O3·2.0SiO2·4.5H2O
Technical parameter:
Item | Unit | Target | |||
Shape |
| Pellet | Sphere | ||
Diameter | mm | 1.5-1.7 | 3.0-3.3 | 1.7-2.5 | 3.0-5.0 |
Size ratio up to grade | % min | 98 | 98 | 96 | 96 |
Bulk density | g/ml min | 0.67~0.75 | |||
Wear ratio | % max | 0.20 | 0.25 | 0.20 | 0.20 |
Crushing strength | N min | 30/cm | 45/cm | 60/p | 70/p |
Static adsorption | % min | 20.5 | 20.5 | 20.5 | 20.5 |
Methane adsorption | % min | 16 | 16 | 16 | 16 |
Packing water | % max | 1.5 | 1.5 | 1.5 | 1.5 |
Regeneration Molecular Sieve 4A can be revived for reuse and the required factors for revival are temperature and pressure. To remove the adsorbed moisture and other materials, the revival condition shall be set up considering the features of target material and processing environment. The general revival temperature of Molecular Sieve 4A is about 300 and it should not surpass 450 at maximum.
Package:
25kg carton box. Inner package, vacuumized with aluminum foil. 55 gallon iron drum. As requirement of consumers.Attention:
Do not unpack the goods until using, avoid of exposure in air for a long time.
Should be stuffed as rapid as possible at filling.
Molecular Sieve 4A