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4A Molecular Sieve

Quantity:
  • Chemshun

Production Description:

Molecular sieve 4A is a kind of alkali-metallic silicon-aluminum compounds ,it is the sodium form of the type a crystal structure. Molecular sieve 4A has an effective pore opening of 4 angstroms(0.4nm),4A molecular sieves can absorb the molecules which critical diameter is not more than 4 angstroms, 4A molecular sieves is sued in the dryness of gases and liquid, and absorb H2O,NH3,H2S,SO2,CO2,C2H5OH,C2H6,C2H4,C3H6 and so on,4A molecular sieve is also used for dryness of impurity gas in oil,

Oil & natural gas and dehydration of ethanol, if it lost effectiveness,4A zeolite can be regenerated to reuse

 

Application:

Deep drying of gases and liquids, such as air,naturalgas,refrigerants,solvents etc.

Drying of saturated hydrocarbons

Refining and purification of argon gas

Static dehydration of electronic element ,pharmaceutical and unstable materials

 

Material

Type:4A,Pore diameter:4 angstroms;chemical form:Na2O~AL2O3~2SiO2~9/2H2O(SiO2/AL2O3=2

 

Technical data

Shape

Bead


Pellet


Diameter(mm)

1.6-2.5

(8x12 mesh)

3-54x8mesh

1.6(1/16”)

3.2(1/8”)

Static water adsorption(% wt)

>=21.5

>=21.5

>=21.5

>=21.5

Methanol adsortion(mg/g)

>=15

>=15

>=15

>=15

Bulk density(g/ml)

>=0.72

>=0.7

>=0.68

>=0.67

Crush strength(N)

>=35

>=90

>=35

>=80

Attrition rate(%wt)

<=0.1

<=0.1

<=0.3

<=0.3

Size ratio up to grade(%)

>=98

>=98

>=96

>=96

Package moisture content(%wt)

<=1.5

<=1.5

<=1.5

<=1.5


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