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Product Description.
and has an effective pore opening of about 4 angstroms (0.4nm). 4A molecular sieve will adsorb most molecules with a kinetic diameter of less than 4 angstroms and exclude those larger. It can be regenerated by either heating in the case of thermal swing processes; or by lowering the pressure in the case of pressure swing processes.
1. Specification.
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Model |
4A |
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Color |
Light gray |
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Nominal pore diameter |
4 angstroms |
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Shape |
Sphere |
Pellet |
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Diameter (mm) |
1.7-2.5 (8*12 mesh) |
3.0-5.0 (4*8 mesh) |
1.6 (1/16 inch) |
3.2 (1/8 inch) |
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Size ratio up to grade (%) |
≥98 |
≥98 |
≥96 |
≥96 |
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Bulk density (g/ml) |
≥0.70 |
≥0.70 |
≥0.68 |
≥0.68 |
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Wear ratio (%) |
≤0.20 |
≤0.20 |
≤0.40 |
≤0.40 |
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Crushing strength (N) |
≥35/piece |
≥85/piece |
≥30/piece |
≥70/piece |
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Static H2O adsorption (%) |
≥21.5 |
≥21.5 |
≥21.5 |
≥21.5 |
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Static methanol adsorption(%) |
≥15 |
≥15 |
≥15 |
≥15 |
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Water content (%) |
≤1.5 |
≤1.5 |
≤1.5 |
≤1.5 |
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Typical Chemical Formula |
Na2O . Al2O3 . 2SiO2 . 4.5 H2O |
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Warranty: |
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2. Typical Application:
- Used in instruments/devices for drying moisture;
3. Regeneration:
Chemxin molecular sieve Type 4A can be regenerated at a temperature of 250-280°C to remove the moisture. A properly regenerated molecular sieve can give moisture dew points below -100°C. The outlet concentrations on a pressure swing process will depend on the gas present, and on the conditions of the process
4. Size:
4A - Zeolite are available in beads of 1-2 mm(10x18 mesh), 2-3 mm(8x12 mesh), 2.5-5 mm(4x8 mesh) and as powder, and in pellet 1.6mm, 3.2mm.
5. Attention:
To avoid damp and pre-adsorption of organic before running, or must to be reactivated.
Package & Shipment.
Production Process.
Company information.
Certificate.
FAQ.
1).What series molecular sieves your company have?
---molecular sieve 3A, 4A, 5A, 13X, 13X-HP, 13X APG, carbon molecular sieve
2). What kinds of standard packing of this tiem?
---carbon box, paper drum, steel drum, jumbo bag
3). What is the MOQ?
---500KG is available
4). What's your payment term?
---TT, Paypal, Western Union, L/C etc
Product Series.
Contact way.
E-mail:
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http://www.chemxin-en.com/