4A molecular sieve is a kind of alkali alumina silicate, able to adsorb molecules with their critical diameters no more than 4＆#506;. It can adsorb H2O, NH3, H2S, CO2, C2H5OH, C2H6,C2H4, C3H6, etc. It is widely used in the drying of gases and liquids, or used in refining and purification of some gases or liquids, such as production of Ar.
Physi-chemical indexes :
Index names | Bars | Balls | |||
φ1.5-1.7mm | φ3.0-3.3mm | φ2-3mm | φ3-5mm | ||
Abrasion rate, % | 0.30 max. | 0.50max. | 0.35max. | 0.35max. | |
Bulk density, g/ml | 0.66min. | 0.66min. | 0.66min. | 0.66min. | |
Static water adsorption, % | 20.5min. | 20.5min. | 21min. | 21min. | |
Static methanol adsorption, % | 15min. | 15min. | 15min. | 15min. | |
Crushing strength | Point strength, N/grain, | 25min. | 38min. | 40min. | 70min. |
Distortion coefficient | 0.3max. | 0.3max. | |||
Granularity, % | 90 min. | 90 min. | |||
Water content of packed products | 1.5 max. | 1.5 max. | |||
Packing and points for attention
4A molecular sieve adopting package of paperboard barrel, inner lined with plastic film bag. Net weight is 40 kg per barrel. Paying more attention to moisture proof in storage, and ensure catalyst not contacting with other chemical production.. Be careful when loading and unloading and transportation avoiding production breaking.
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