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molecular sieve 4A
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molecular sieve 4A

Classification : product
微信图片_20240904201824

molecular sieve 4A

Molecular formulaNa2O·Al2O3·2SiO2·4½H2O

Silicon to aluminium ratio:SiO/Al2O3≈2

Effective pore size: about4À                                                             Appearancebeige, beige or earth red spherical particles                                                                                                                           

Application: :4A molecular sieve mainly adsorbs water, methanol, ethanol, air, natural gas and other gases and liquids dry. It does not adsorb any molecule with a diameter larger than 4A (including propane), and it is the preferred desiccant for many kinds of chemical gases and liquids, refrigerants, medicines, electronic materials and volatile substances. The selective adsorption of water is higher than any other molecule. It is one of the most used molecular sieve species in industry.

Technical index:

Indicator Unit Spherical
Diameter

mm

1.6-2.5

2.5-5.0

Static water adsorption

≥%

20.5

21

Granularity

98

98

Bulk density

≥g/ml

0.65

0.65

Compressive strength

≥N/

35

70

Relative standard deviation of compressive strength

0.3

Abrasion rate

≤%

0.2

0.2

Packaging water conten

≤%

1.5

1.5

 


Regeneration:

1, remove water: depending on the pressure, temperature and water content of regeneration gas. In general, 200 ~ 350 ℃ dry gas under 0.3 ~ 0.5kg/cm2 pressure, through the molecular sieve bed for 3 ~ 4 hours, so that the outlet temperature to 110 ~ 180 ℃, cooling.

2、De-organic matter: replace organic matter with water vapour, then remove water.

Storage:

Room temperature, relative humidity water greater than 90%; should not be directly exposed to air; avoid water, acid, alkali.

Packing: 25kg/bag or barrel. Also according to customer requirements.

Note: Avoid direct exposure of molecular sieve to air.

 

Langfang Asia-Pacific Longxing Chemical Co., Ltd, our company is an enterprise engaged in the production and subcontracting of fine chemicals for more than thirty years, which is a new type of chemical enterprise integrating scientific research, R&D and production. 

Address: Dongwang, Quancun, Dacheng County, Hebei, China

private plane: 0316-5708338  5706548

Customer Service Email:904945822@qq.com