High Purity 0.4G/Cm3 4A Molecular Sieve Powder
High Purity 0.4G/Cm3 4A Molecular Sieve Powder
Product Description
4A molecular sieve raw powder is a micronized form of zeolite molecular sieve, and is used for the removal of water from within polymers – most typically from within 2-component Polyurethane formulations. It is also widely used for moisture scavenging in polyurea systems and zinc-rich paints. By removing water from your polymer system, it prevents the formation of CO2 gas bubbles – and this improves surface finish and structural strength of your final product.
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 | ||||
Industry sectors using Supersiv molecular sieve paste and powder
| Medical | Molecular sieve ensures shelf life stability of pharmaceuticals, diagnostics and medical devices. | |
| Resins | Removes water from 2K polyurethane coatings, adhesives, sealants and elastomers. It also prevents carbon dioxide bubbles forming, off-gassing and improves surface finish in paint production. |
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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