4A molecular sieve
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Product Description
- 产品描述
-
I. Product Introduction
Our company's 4A molecular sieve is a sodium-type aluminosilicate with a crystal pore size of 4Å (0.4nm), capable of adsorbing molecules with a critical diameter no larger than its pore size.
II. Main Applications
Mainly used for deep drying of gases and liquids such as air, natural gas, alkanes, and refrigerants; argon production and purification, separation of methane, ethane, and propane; static drying of electronic components and moisture-sensitive materials; as a desiccant in paints, polyesters, dyes, and coatings.
III. Storage Conditions
Dry, cool, and dark.
IV. Implementation Standards
Implements the superior product indicators according to industry standard HG/T 2524-2010.
Requirements for Spherical 4A Molecular Sieve
Item
d（1.6～2.5）/mm
d（3.0～5.0）/mm
Superior Product
First Grade Product
Qualified Product
Superior Product
First Grade Product
Qualified Product
Appearance
Rice white, beige, or earthy red bar-shaped particles, free of mechanical impurities
Static Water Adsorption/% ≥
22.0
21.0
20.0
22.0
21.0
20.0
Abrasion Rate/% ≤
0.20
0.40
0.60
0.20
0.40
0.60
Particle Size/% ≥
98.0
95.0
90.0
98.0
95.0
90.0
Bulk Density/(g/mL) ≥
0.68
0.65
0.68
0.65
Static Methanol Adsorption/% ≥
15.0
14.0
15.0
14.0
Compressive Strength
Crushing Strength
Compressive Strength/(N/piece) ≥
35.0
30.0
80.0
60.0
Relative Standard Deviation of Compressive Strength ≤
0.3
Packaging Water Content/%a ≤
1.5
a Packaging water content is based on factory inspection.
Note: Conforms to industry standard HG/T 2524-2010 (4A molecular sieve)
Requirements for Bar-Shaped 4A Molecular Sieve
Item
d（1.5～1.7）/mm
d（3.0-3.3）/mm
Superior Product
First Grade Product
Qualified Product
Superior Product
First Grade Product
Qualified Product
Appearance
Rice white, beige, or earthy red bar-shaped particles, free of mechanical impurities
Static Water Adsorption/% ≥
22.0
21.0
20.0
22.0
21.0
20.0
Abrasion Rate/% ≤
0.20
0.30
0.50
0.20
0.40
0.50
Particle Size/% a ≥
98.0
95.0
90.0
98.0
95.0
90.0
Bulk Density/(g/mL) ≥
0.66
0.60
0.68
0.60
Static Methanol Adsorption/% ≥
15.0
14.0
15.0
14.0
Compressive Strength
Crushing Strength
Compressive Strength/(N/piece) ≥
40.0
30.0
80.0
50.0
Relative Standard Deviation of Compressive Strength ≤
0.3
Packaging Water Content/% ≤
1.5
a For molecular sieves with specifications of d(1.5～1.7) mm, the particle size is the mass fraction of samples with bar length (1～6) mm in the total amount; for molecular sieves with specifications of d(3.0～3.3) mm, the particle size is the mass fraction of samples with bar length (3～9) mm in the total amount.
b Packaging water content is based on factory inspection.
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General Manager Gan:13907994179,13879938608,17379992688
General Manager Zhang:17379992711
Tel:0799-6880199
Phone:0799-6827881
Fax: (0799)6835018
Email:mail@jxchengyu.com
Address: Luqian Industrial Zone, Xiangdong District, Pingxiang City, Jiangxi Province
Jiangxi Pingxiang Chengyu Ceramics Co., Ltd.
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