5A Molecular Sieves
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| Post Date: | Sep 04,2018 |
| Expiry Date: | Sep 04,2019 |
| Detailed Description: |
Cas No. :12173-28-3
Quantity: 100Metric Tons Specs:1-3, 2-4, 3-5 Price:1700 USD Metric Tons Payment Method: TT 5A Molecular Sieves 5A molecular sieve, also called Calcium A molecular sieve, non-toxic, odorless, nonflammable, non-explosive, insoluble in water and organic solvents, but soluble in strong acid and strong base. Its pore diameter is 5×10-10m, can adsorb any molecules which pore diameter is smaller than 5×10-10m. In addition to the effect of 3A, 4A molecular sieves, it also can adsorb C3-C4 n-alkanes, ethylene chloride, bromoethane, butanol, etc. 5A molecular sieve can be applied to pressure swing adsorption separation, heterogeneous hydrocarbon separation and coadsorption of water and carbon dioxide. Yuanying 5A molecular sieve has ion exchange capacity and catalytic activity, also has a great affinity to water, under high temperature still has good adsorption ability, it has good catalysis to some organic gas phase reaction. Molecular sieve also called zeolite, is a crystalline aluminum silicate. Its crystal structure has neat and uniform channel, aperture around a molecular level, molecular sieve only allows smaller diameter than its aperture into it, so it can sieve molecules according to their size in the mixture, so it called molecular sieve. According to molecular sieve aperture size, there are 3A, 4A, 5A, 10X, 13X. 4A molecular sieve is Na-A molecular sieve, aperture 0.4nm; if Na replaced by K, aperture 0.3nm, is 3A molecular sieve; if over 1/3 Na replaced by Ca2+, aperture 0.5nm, is 5A molecular sieve. Let sodium aluminate, sodium silicate and sodium hydroxide hybrid reaction according to certain molar ratio (normally Al2O3:SiO2:Na2O:H2O=1:2:3:185), keeping temperature>40℃, with violent stirring, heating up reaction gel to102℃±2℃, remain this temperature till static crystallization, then filtration washing, adding calcium chloride for ion exchange (exchange 70%), then filtration washing, drying, adding adhesives kneading, molding, finally burning activating get 5A molecular sieve. Application 1. The depth desiccation and purification of gases and liquids, purification of nitrogen, hydrogen, cleaning hydrogen sintering furnace 2. Through a selective adsorption process, isolated n-alkane frombranched-chain hydrocarbon and cyclic hydrocarbon, currently in industry used for large-scale pressure alkane separation process 3. Desiccation, desulfurization, removal of carbon dioxide for petroleum, petroleum gas and natural gas 4. Nitrogen oxygen separation, nitrogen hydrogen separation, making oxygen, nitrogen and hydrogen 5. Petroleum dewaxing, can be used as a adsorbent in dewaxing technology based on vapour as desorbent. 5A molecular sieve regeneration 1. Moisture removal: According to pressure, temperature and water of regenerate gas. Normally 200～350℃ dry gas under 0.3～0.5kg/cm through molecular sieve bed layer 3-4 hours, exit temperature 110～180℃, then cooling. 2. Removing organic matter: Used vapour instead of organic matter, then repeat step 1. |
| CAS Registry Number: | 12173-28-3 |
| Synonyms: | ;Molecular sieve 13X 1/16;Molecular sieve 3A 1/16;Molecular sieve 4A 1/16;Molecular sieve 5A 1/16;Molecular sieves, 5A;Molecular sieves 3A 1/16;MolecularsievesXpowder;MolecularsievesXmmbeads;MolecularsievesmeshpowderLindeX;MolecularsievespelletsLindeX;Molecular Sieve Type 13X;Molecular sieve 3A;MOLECULAR SEIVES, TYPE 4 A;Molecular sieves 13X; |
| Molecular Formula: | Al·Ca·16H2O·K·Na·O5Si2·O |
| Safety Description: | S22:; |
| Company: | Yuanying Industry Limited [ China ] |
| Contact: | Earuler Wang |
| Tel: | +86-15179996644 |
| Fax: | +86-799-6859700 |
| Email: | shiyu666@gmail.com |
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