Molecular sieve 3A is potassium A type silica aluminate, which can adsorb the critical diameter ofmolecules below 3A. This is used for adsorption of water. It has high selectivity, faster adsorption speed, more regeneration times, higher anti-crushing strength and anti-pollution ability, all these improve the efficiency of molecular sieve and prolong the service life of molecular sieve.
3A molecular sieve is an alkali metal aluminosilicate, also called KA molecular sieve or 3A zeolite molecular sieve, mainly used to adsorb water. SNOWPEAK 3A molecular sieve has faster adsorption speed, more regeneration times, higher crushing strength and anti-pollution ability, which can improve utilization efficiency and prolong service life. It’s really the preferred desiccant necessary for deep drying, refining and polymerization of gas and liquid in petroleum and chemical industry.
| Type | 3A | |||||||
| Nominal Pore Diameter | 3 angstroms | |||||||
| Chemical Formula | 0.4K2O . 0.6Na2O . Al2O3 . 2SiO2 . 4.5 H2O (SiO2 : Al2O3 ≈2) | |||||||
| Shape | Bead | Pellet | ||||||
| Application | Insulating Glass Desiccant | Ethanol Dehydration | Ethanol Dehydration | Liquid Gaseous Drying | Liquid Gaseous Drying | Liquid Gaseous Drying | Liquid Gaseous Drying | |
| Diameter(mm) | 20×32mesh | 1.6-2.5 | 3.0-5.0 | 1.6-2.5 | 3.0-5.0 | 1/16″ | 1/8″ | |
| Static H2O Adsorption(%) | 25℃, Saturated NaCl, 24h | ≥21.5 | ≥21.5 | ≥21.5 | ≥21.5 | ≥21.5 | ||
| 35℃, Saturated NaCl, 24h | ≥21 | ≥21 | ≥21 | ≥21 | ≥21 | |||
| 23℃, RH10% | ≥18 | ≥18 | ||||||
| 23℃, RH50% | ≥21 | ≥21 | ||||||
| Static CO2 Adsroption(%) | 25℃, 250mmHg | ≤1.0 | ≤1.0 | |||||
| Static C2H4 Adsroption(mg/g) | 0℃, 760mmHg | ≤3.0 | ≤3.0 | ≤3.0 | ≤3.0 | ≤3.0 | ||
| Bulk Density(g/ml) | ≥0.70 | ≥0.75 | ≥0.75 | ≥0.75 | ≥0.75 | ≥0.70 | ≥0.69 | |
| Crush Strength(N) | ≥40 | ≥100 | ≥35 | ≥100 | ≥40 | ≥90 | ||
| Wear Ratio(%) | ≤0.1 | ≤0.2 | ≤0.25 | ≤0.1 | ≤0.1 | ≤0.2 | ≤0.2 | |
| Water Content(%) | ≤1.5 | ≤1.5(950℃, 1h) | ≤1.5(950℃, 1h) | ≤1.5 | ≤1.5 | ≤1.5 | ≤1.5 | |
| Particle Ratio(%) | ≥95 | ≥97 | ≥98 | ≥98 | ≥98 | ≥97 | ≥97 | |
* Liquid Gaseous Ethanol and Bioethanol Dehydration
