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ZSM-5 Zeolite Molecular Sieve Silica-alumina ratio:25 CAS NO.12173-28-3
ZSM-5 Zeolite Molecular Sieve SiO2/Al2O3 Mole Ratio 15-1000
ZSM-5 type zeolite,belonging to high-silica zeolite and having a Si/Al ratio of up to 1000 and above,also shows the hydrophobic characteristic.The structural feature of such a zeolite is that the vertical and horizontal parts are crystalline aluminosilicate composed of 10-membered channel.The basic structure is composed of eight 5-membered rings,which has channels only and is without cage-free cavities.ZSM-5 has two sets of cross channels,one of which is straight,and the other one is shown in zig-zag type and vertical to each other.The channel is shown in the form of an ellipse,and the window diameter thereof is 0.55 to 0.60nm.As the reaction space is similar to the shape of the access,the zeolite has a shape selection effect to the reactants and products.Moreover,ZSM-5 is a good raw material of selective catalyst due to the harmonious structure and hydrothermal stability.
The varieties for the typical products of ZSM-5 Zeolite produced by JiuLong Chemical Co.,Ltd.are listed as follows,and the other products of this series also can be produced according to the requirements of the user: |
ZSM-5 Zeolite Molecular Sieve SiO2/Al2O3 Mole Ratio 15-1000
ZSM-5X Zeolite
The ZSM-5 type zeolite produced by means of a template agent based hydrothermal crystallization method is featured with small-sized crystalline grain,wherein the relative crystallinity is no less than 80%,the SiO2/Al2O3 molar ratio is no less than 25,the Na2O is no more than 0.1%.and the average grain size is 100nm.
ZSM-5X Quality Control Targets
Item
|
Unit
|
Max
|
Typical
|
Max
|
Analytical Method
|
Relative crystallinity
|
%
|
75
|
82
|
|
X-ray diffractometer
|
Total specific surface
|
m2/g
|
330
|
360
|
|
N2 Adsorption
|
Microporous specific surface
|
m2/g
|
280
|
310
|
|
N2 Adsorption
|
Silica-alumina ratio
|
/
|
22
|
25
|
27
|
XRF
|
Na2O
|
wt%
|
|
0.050
|
0.1
|
Flame Photometric Analysis
|
SO42-
|
wt%
|
|
0.25
|
0.4
|
XRF
|
CI-
|
ppm
|
|
|
70
|
Chemical Analysis
|
LOI
|
wt%
|
|
4
|
10
|
Gravimetric Analysis
|
D,50
|
μm
|
|
6
|
7
|
Laser Scatter Distribution
|
D,90
|
μm
|
|
8.0
|
9
|
Laser Scatter Distribution
|
CAS NO:108-93-0
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CAS NO:12173-28-3
CAS NO:12173-28-3
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