Offter to Sell

4A-DG 1/8

  • Post Date:

    Mar 22,2013

  • Expiry Date:

    Sep 18,2013

  • Detailed Description:

    GENERAL

    • Molecular sieve type 4A, the sodium form of the type A crystal structure, is an ankle metal aluminosilicate. Type 4A will adsorb molecules with critical diameters up to 4 angstroms.
    • Chemical formula is Na12[(AlO2)12(SiO2)12]XH2O
    • Molecular sieve type 4A can be regenerated for re-use by purging or evacuating at elevated temperatures.  The degree of regeneration (water removal) is dependent on the temperature and humidity of the purge gas.

     

    APPLICATION
    Type 4A is the preferred Molecular sieve adsorbent for static dehydration in a closed gas or liquid system.  It is used as a static desiccant in household refrigeration systems, in packaging of drugs, electronic components, and perishable chemicals, and as a water scavenger and paint and plastic systems.  Type 4A is also used commercially in drying saturated hydrocarbon streams.

     

    FEATURES AND BENEFITS

    • High selectivity
    • Low attrition loss
    • High crush strength
    • High H2O capacity

     

    PACKING
    50kg or 140kg/steel drum

     

    QUALITY STANDARD
    GB standard
    Refer to ASTM AND UOP standard

     

    TYPICAL PROPERTIES

     

    4A 4*8

    4A 8*12

    4A-DG 1/8"

    4A-DG 1/16"

    Normal Pore Diameter(Å)

    4

    4

    4

    4

    Particle Diameter（mm）

    2.38-4.75

    1.58-2.38

    2.92-3.43

    1.46-1.97

    Bulk Density(kg/m3)

    640

    670

    660

    660

    Crush Strength(N)

    80

    31

    71

    26

    Equilibrium H2O Capacity (wt-%)*

    21.0

    21.0

    21.0

    21.0

    Water Content as shipped (wt-%)

    ≤1.5

    ≤1.5

    ≤1.5

    ≤1.5

    *Gram H2O/100 Gram activated adsorbent at 17.5 mm Hg. 25℃
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