4 Angstrom Molecular Sieves Powder
4 Angstrom Molecular Sieves Powder 0.4G/Cm3
Product Description
Molecular sieve powder 4A can adsorb molecules with critical diameter less than 4 angstroms. It is recommended to add 2.5-5.0% molecular sieve powder by weight. Since 4A powder adsorb about 20 wt% of water, the amount of molecular sieve needed is easy to calculate. Therefore, it is safer to work with an excess of zeolite powder.
Technical Index Of Activated Alumina Desiccant
| Technical indicators of zeolite molecular sieve raw powder | ||||
| Type | 3A molecular sieve | 4A molecular sieve | 5A molecular sieve | 13X molecular sieve |
| Chemical formula | K7.2Na4.8[(AlO2)12 | NaO.Al2O3. | Ca4.5Na3[(AlO2)12 | NaO.Al2O3. |
| (SiO2)12]m H2O | SiO2.4.5H2O | (SiO2)12].m H2O | 2.5SiO2.6.2H2O | |
| Color & shape | white,powder | white,powder | white,powder | white,powder |
| Crystallinity % | ~100% | ~100% | ~100% | ~100% |
| Water adsorption% | ≥25 | ≥27 | ≥28 | ≥32 |
| CO2 adsorption value% | ≥22.5 | ≥22.5 | ||
| Ignition loss% | ≤22 | ≤22 | ≤23 | ≤24 |
| PH5% | ≤11 | ≤11.5 | ≤10.5 | ≤11.5 |
| Cl-(%) | ≤0.2 | — | ≤0.2 | — |
| K2O(%) | ≥13 | |||
| K2O/Al2O3(%) | ≥40 | |||
| CaO(%) | ≥13.5 | |||
| CaO/Al2O3(%) | ≥70 | |||
| Bulk Density
G/cm3 |
0.5 | 0.4 | 0.6 | 0.4 |
| Application | Used for drying ethylene, propylene ethanol | Used for dehumidification in oil and gas fields | Used for the separation of purified gas and liquid from air | Used for the separation of purified gas and liquid from air |
| The determination of water adsorption is the amount of water per 100 g of adsorbent at RH=50% and 25º C | ||||
Application
1. Painting and coating additive as moisture scavenger
2. Sealants and adhesives additive as moisture scavenger
3. Pigment and solvent drying additive as moisture scavenger
4. Insulating glass manufacture additive as moisture scavenger
5. Dehydration of polyurethane polymer additive as moisture scavenger
Product Pictures
Factory information
Shanghai Xuefeng Molecular Sieve Co., Ltd. adopts the most advanced and fully automated assembly line molecular sieve production technology in China, and has positions for dosing, kneading, extrusion, drying, roasting and packaging. The main equipment includes pelletizing machine, hardening cylinder, kneader, extruder, belt dryer, rotary roasting furnace, vibrating screen, scale and other ancillary facilities. The production process parameters are all automatically controlled, and there is no paper recorder attached. , The results of the process parameters are comprehensively recorded, and at the same time, the operators of each position shall manually record the parameters every hour to ensure the traceability of the operation process. At the same time, the company pays attention to the inspection of intermediate products, and has set up sampling points for intermediate products in the ingredients, extrusion molding, and drying positions to ensure that the intermediate products meet the specified quality requirements.
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