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公司简介
Products
4A molecular sieve

Chemical Formula: :Na2O·Al2O3·2SiO2·9/2H2O
Si/Al ratio: SiO2/ Al2O3≈2
Pore diameter: About 4
Use: Desiccant for gas and other material; adsorbent for Ar purification and for the separation of methane, ethane and propane.

Technical parameter:
Parameter
Unit
Bead
Pellet
Diameter
Mesh
8*12
4*8
1/16"
1/8"
Water adsorption capacity
≥ %wt
21
21
21
21
Methanol adsorption capacity
≤ mg/g
140
140
140
140
Bulk density
≥ g/ml
0.66
0.66
0.64
0.64
Strength
≥ N
40
90
40
85
Abrasion
≤ %wt
0.1
0.1
0.2
0.2
Water content
≤ %wt
1.5
1.5
1.5
1.5
Reactivation:
1. Removal of water: Hot gas at 200-350°C and pressure 0.3-0.5Kg/cm2 flows through the molecular sieve bed for 3-4 h. let temperature decreases down to 110-180°C, cooling.
2. Removal of organics: Regeneration is achieved by means of steam treatment to remove organics, and then remove water with method 1.
Conservation:
Room temperature, humidity <90%, non-expose to air; non-contact with water, acid and alkali..
Packing:
25 Kg (10 gallon) steel pail
150 Kg (bead, 55 gallon) steel pail
130 Kg (pellet, 55 gallon) steel pail


 
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