4a Molecular Sieve Desiccant For Petroleum,Air Separation,Desiccant
Introduction
Molecular Sieve type 4A (Angstrom) is an alkali alumino silicate, obtained through synthesis of type A zeolite in sodic form. 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). Galaxychem type 4A molecular sieve will adsorb most molecules with a kinetic diameter of less than 4 angstroms and exclude those larger.
| Molecular Sieve 4A Typical Physical Properties | ||||
| Items | Unit | 8*12 Mesh | 4*6 Mesh | |
| Bead Size | mm | 1.6-2.5 | 3.0-5.0 | |
| Bulk Density | g/ml ≥ | 0.70-0.82 | 0.65-0.80 | |
| Equilibrium Water Capacity @ 25℃ | wt% ≥ | 20.5-22.5 | 20.5-22.5 | |
| Equilibrium Methanol Capacity | wt% ≥ | 15.0 | 15.0 | |
| Heat of Adsorption | BTU/lb of H2O | 1800 | 1800 | |
| Crush Strength | Point Contact | N ≥ | 30-80 | 85-160 |
| Variation Coefficient | - | 0.3 | 0.3 | |
| Attrition Rate | wt% ≤ | 0.1 | 0.1 | |
| Size Qualification | % ≥ | 98 | 98 | |
| Package Moisture | wt% ≤ | 1.5 | 1.5 | |
| The interval value of the indexes above are on the basis of the different grade of Molecular Sieve 4A | ||||
Typical Application
| Deep drying of air, Natural gas, alkane and refrigerant. |
| Generation and purification of argon. |
| Static dehydration of electronic element, pharmaceutical and unstable materials. |
| Desiccant for paint, dope and foul etc. |
| Type 4A molecular sieve is typically used in regenerable drying systems to remove water vapor or contaminants which have a smaller critical diameter than four angstroms. |
Attention:
1. The product cannot be exposed in the open air and should be stored in dry condition with air-proof package.
2. The product should be regenerated after a certain period of adsorption. The appropriate regenerated temperature would be better below 350°C.
Packaging:
1, 25KG/carton; 2, 35KG/carton drum; 3, 150KG/Sealed iron drum
Delivery Time:
About 3-15 days after the payment.
