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4A Molecular Sieve
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4A Molecular Sieve
Formula: Na2O, Al2O3·2.0SiO2·4.5H2O
The pore size for 4A molecular sieve is 4A. It is mainly used to adsorb water, methanol, ethanol, sulfureted hydrogen, carbon dioxide, ethylene, propylene, does not adsorb any larger molecular than 4A, and often used as desiccant in industrials.
Regeneration: it can be regenerated through the course of improving the temperature. Regeneration temperature is 180-350°C, and regeration time is 3-6 hours.
Technical parameter for 4A Molecular Sieve:
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Item
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Unit
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Target of
4A Molecular Sieve
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|
Shape
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Pellet
|
Sphere
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|
Diameter
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mm
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1.5-1.7
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3.0-3.3
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1.7-2.5
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3.0-5.0
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Size ratio to grade
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%
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≥98
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≥98
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≥96
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≥96
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|
Bulk density
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g/ml
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≥0.60
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≥0.60
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≥0.60
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≥0.60
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Wear ratio
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%
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≤0.20
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≤0.25
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≤0.20
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≤0.20
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Crushing strength
|
N
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≥30
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≥45
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≥60
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≥70
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|
H2O adsorption
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%
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≥20.5
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≥20.5
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≥20.5
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≥20.5
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Methane adsorption
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%
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≥16
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≥16
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≥16
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≥16
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Packing water
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%
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≤1.5
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≤1.5
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≤1.5
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≤1.5
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The usage of 4A molecular sieve:
4A Molecular Sieve can depth dry Air, natural gas, paraffin, gas,liquid argon gas in the making and purification; pharmaceutical packaging, electronic components and easy deterioration material , paint, fuel etc.
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