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Molecular Sieves 4A Molecular Sieve 4A

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Molecular Sieves 4A Molecular Sieve 4A

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City & Province Jiangxi/Pingxiang
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Molecular Sieves 4A Molecular Sieve 4A

Brief

4A molecular sieve is an alkali aluminum silicate; 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).


4A Molecular Sieve Details
1、Product Description
4A molecular sieve is an alkali aluminum silicate; 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). It will adsorb most molecules with a kinetic diameter of less than 4 angstroms and exclude those larger. Such adsorb molecules include simple gas molecules such as oxygen, nitrogen, carbon dioxide and straight chain hydrocarbons. Branched chain hydrocarbons and aromatics are excluded.
2、Typical Chemical Formula
Na2O Al2O3 2.0SiO24.5H2O
3、Technical Parameter

Item

Unit

Technical data

Shape

Bar

Sphere

Diameter

mm

1.5-1.7

3.0-3.3

1.7-2.5

3.0-5.0

Size ratio up to grade

%

≥98

≥98

≥96

≥96

Bulk density

g/ml

≥0.60

≥0.60

≥0.60

≥0.60

Wear ratio

%

≤0.20

≤0.25

≤0.20

≤0.20

Crushing strength

N

≥30/cm

≥45/cm

≥60/p

≥70/p

Static water adsorption

%

≥20.5

≥20.5

≥20.5

≥20.5

Water content, as shipped

%

≤1.5

≤1.5

≤1.5

≤1.5

4、Typical Application
1)Drying and removing of CO2 from natural gas, LPG, air, inert and athmospheric gases, etc.
(2)Removal of hydrocarbons, ammonia and methanol from gas streams. (ammonia syn gas treating)
(3)Special types are used in the air break units of buses, trucks and locomotives.
(4)Packed in small bags, it may be used simply as a packaging desiccant.

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