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Introduction
NA-MOR zeolite catalyst or sodium mordenite, is a synthetic zeolite molecular sieve with sodium ions as the main compensating cation, belonging to the MOR topology. Its typical framework consists of SiO4 and AlO4 tetrahedra, with a 12-membered ring main channel and an 8-membered ring side bag structure. The size of the 12-membered ring main channel is approximately 6.5 × 7.0 Å, and the size of the 8-membered ring side bag is approximately 3.4 × 4.8 Å.
The microporous structure of Na-MOR allows selective adsorption and separation based on molecular size and polarity, while its pore architecture provides excellent diffusion and sieving properties for molecules of different sizes. Sodium ions primarily serve to balance the negative charge of the Na-MOR framework, thus exhibiting relatively weak acidity, but they can exchange with other cations to serve as catalyst precursors.
By adjusting the synthesis conditions, Na-MOR zeolite with different silica-to-alumina ratios can be obtained, thereby altering its acidity, hydrophilicity, adsorption properties, and stability. Industrially, Na-MOR molecular sieve is more suitable as an adsorbent, ion exchange material, and precursor for the further preparation of exchangeable zeolite catalysts such as H-MOR, NH4-MOR.
Technical Specification
|
Type |
NA-MOR |
|
Apprearance |
White powder |
|
Crystal Structure |
MOR |
|
Cation |
Na+ |
|
BET Surface Area(m2/g) |
≥500 |
|
SiO2/Al2O3(mol/mol) |
20~30 |
|
Particle Size(μm) |
0.2~4.0 |
|
Na2O(wt%) |
≤0.1 |
Application
- Adsorption And Gas Separation
-
Ion Exchange Catalyst Precursor
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