| CAS No.: | 63231-69-6 |
|---|---|
| Formula: | 0.4K2o 0.6na2o Al2O3 2.0sio2 4.5H2O |
| EINECS: | 69912-79-4 |
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Zeolite molecular sieves have the structure and characteristics of crystals, the surface is a solid skeleton, and the internal holes have the function of adsorbing molecules. There are pores connected to each other, and molecules pass through the pores channels. Due to the crystalline nature of the pores, the pore size distribution of molecular sieves is very uniform. Molecular sieves selectively adsorb molecules according to the size of the holes in their crystal, that is, they adsorb molecules of a certain size and repel molecules of larger substances, so they are figuratively called "molecular sieves."
3A molecular sieves are usually formed by the exchange of potassium ions to 4A molecular sieves instead of sodium ions. They are mainly used for the adsorption of water molecules and are suitable for the drying of gases and liquids, such as LNG, petroleum, ethanol, etc.
The insulating glass molecular sieve can absorb the moisture and residual organic substance in the insulating glass to keep the insulating glass smooth and transparent even at very low temperatures condition, and can also prevent the strong pressure difference of the insulating glass caused by seasonal change and large temperature difference between day and night, and also prevent the deformation and damage of the insulating glass due to expansion and contraction, and fully extend the service life of the insulating glass
The 3A molecular sieve is recommended for insulating glass, because the aperture of 3A molecular sieve can just absorb water in the air, but will not absorb oxygen and nitrogen in the air, which can play the role of dry air, and at the same time have less impact on the pressure in the hollow chamber.
| Compare of Desiccants for Insulating Glass |
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Desiccant Type |
Effect to Appearance | Effect to Energy-Saved | Lifetime of Glass | Security Risks |
Molecular Sieve 3A |
No effect | No effect | Glass Lifetime reach up to 20 years | No Risks |
| Calcium Oxide Desiccant | The aluminum strip will be rusted and produce powder, and the glass edge will be corroded. | Not Obvious | It will severely corrode the aluminum strips, glass lifetime is short | There are security risks |
| Attapulgite Desiccant | The aluminum strip will be severely corroded, and the glass will crystallizes. | It will destroy the butyl gum and Low-E, and may occur the condensation. | It will age the sealant, affecting the glass lifetime | The glass may occur the detachment, which is a great safety risk |
| Properties | Unit | Technical data | |||
| Shape | Spherical | Cylindrical | |||
| Diameter | mm | 1.7~2.5 | 3.0~5.0 | 1/16'' | 1/8'' |
| Granularity | % | ≥98 | ≥98 | ≥98 | ≥98 |
| Bulk Density | g/ml | ≥0.73 | ≥0.70 | ≥0.66 | ≥0.64 |
| Abrasion | % | ≤0.20 | ≤0.20 | ≤0.20 | ≤0.20 |
| Crush Strength | N | ≥35 | ≥80 | ≥40 | ≥70 |
| Static H2O Absorption | % | ≥22 | ≥22 | ≥22 | ≥22 |
| Moisture | % | ≤1.5 | ≤1.5 | ≤1.5 | ≤1.5 |
3A Molecular Sieve Application Fields
1) Drying of various liquids (such as ethanol)
2) Dehydration of insulating glass
3) Drying of air and refrigerant
4) Drying of LNG and CH4 gas
5) Drying of unsaturated hydrocarbons and cracking gas, ethylene, acetylene, C3H6, and butadiene
Package
*25kg Carton with inner PE bag.
*55 Gallon steel drum
*Other packing by customer request
Storage
Prevent the molecular sieves from exposing directly to the damping environment and any absorption of water or organic substance before it's used, otherwise it must be regenerated.
All Chemequip molecular sieves can be regenerated by temperature or pressure swing.
Delivery
For small quantity order < 100kg, 10 days after purchased contract is efficient.
For big quantity order > 500kg, 15 days after purchased contract is efficient.
Chemequip New Material Ltd. devotes to provide the optimal custom-made molecular sieves solution to the customers around the world. Its headquarter Chemequip Industries Ltd. located in the Songjiang district, Shanghai of China, has deeply cooperated with an internationally recognized high efficient heat exchange technology supplier for nearly 20 years.
Chemequip New Material Ltd. commits to provide the world market with new chemical material molecular sieves product, it sets up the sales and services offices in Europe and an agent service system in the Middle East, providing the optimal solution for global customers.
Chemequip New Material Ltd. establishes a molecular sieve production base with an annual output of 20,000 tons in the Xuancheng Economic Development Zone, it covers an area of 35 acres with a factory area of 23,000 m2 and an R&D center of 1500 m2. It can provide molecular sieves types includes the 3A, 4A, 5A, 13X and a variety of high-end formulations such as 13X medium silicon and 13X low silicon, and also it can be customized by customer request.
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