PRODUCT PARAMETERS
Description
Product Introduction
Guangdong Xintao Molecular Sieve type 4A is an alkali alumina silicate; it is the sodium form of the Type A crystal structure. 4A molecular sieve has an effective pore opening of about 4 angstroms (0.4nm). Guangdong Xintao type 4A molecular sieve will adsorb most molecules with a kinetic diameter of less than 4 angstroms and exclude those larger. Such adsorb-able molecules include simple gas molecules such as oxygen, nitrogen, carbon dioxide and straight chain hydrocarbons. Branched chain hydrocarbons and aromatics are excluded.
Specific Application：
Deep drying of air, natural gas, alkaline, refrigerants and other gases and liquids; Static drying of pharmaceutical packaging, electronic components and perishable objects; The preparation and purification of air etc.
Technical Parameter:
|
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) |
|
Size ratio up to grade (%) |
≥98 |
≥98 |
≥96 |
≥96 |
|
Bulk density (g/ml) |
≥0.70 |
≥0.70 |
≥0.68 |
≥0.68 |
|
Wear ratio (%) |
≤0.20 |
≤0.20 |
≤0.40 |
≤0.40 |
|
Crushing strength (N) |
≥35/piece |
≥85/piece |
≥30/piece |
≥70/piece |
|
Static H2O adsorption (%) |
≥21.5 |
≥21.5 |
≥21.5 |
≥21.5 |
|
Static methanol adsorption(%) |
≥15 |
≥15 |
≥15 |
≥15 |
|
Water content (%) |
≤1.5 |
≤1.5 |
≤1.5 |
≤1.5 |
|
Typical Chemical Formula |
Na2O . Al2O3 . 2SiO2 . 4.5 H2O (SiO2 : Al2O3 ≈2） |
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Typical Application |
a) Drying and removing of CO2 from natural gas, LPG, air, inert and atmospheric gases, etc. |
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