Welcome to Shanghai Mlc Molecular Sieve Co., Ltd. £°


Products
Products
4A molecular sieve

Chemical Formula: £ļNa2O·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£ļ
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


 
Copyright(C)2017,Shanghai Mlc Molecular Sieve Co., Ltd. All Rights Reserved. Designed by www.hxchem.net