|Port:||Qingdao, Lianyungang, Shanghai, Tianjin|
|Payment Terms:||L/C,T/T,Western Union,MoneyGram|
|Supply Ability:||2000 Metric Ton/Metric Tons per Month|
|Classification:||Chemical Auxiliary Agent|
|Adsorbent Variety:||Molecular Sieve|
|Place of Origin:||Henan China|
|Other Names:||Molecular Sieve|
|Usage:||Coating Auxiliary Agents,Electronics Chemicals,Petroleum Additives,Plastic Auxiliary Agents|
|Appearance:||Wheat Sphere or Columnar|
|Product name:||4a molecular sieve|
|Feature:||There are many uniform pores and holes|
|Performance:||Adsorption, ion-exchange and catalytic properties|
|Wear ratio (%):||<0.40|
|Packing:||Bag or Bucket|
|Packaging Detail:||Packing specification for molecular sieve 4a : 25kg paper drum or paper box or woven bag ,150kg steel drum.|
Molecular sieve is a kind of synthetic molecular screening of hydrated silicon aluminate (zeolite) or natural zeolite, it has a lot of aperture on structure of concreted complete neat rows of cavity, different aperture of molecular sieve to separate different molecular size and shape. Molecular sieve with different pore sizes were obtained according to the molecular ratios of SiO2 and Al2O3. The models are: 3A(potassium A type), 4A(sodium A type), 5A(calcium A type), 13X(sodium X type), etc. It has high adsorption capacity, high selectivity and high temperature resistance. It is widely used in organic and petrochemical industries and is also an excellent adsorbent for gas dewatering. More and more attention has been paid to waste gas purification.
|4A molecular sieve|
|Sphere Size(mm)||Φ3-5 mm||Φ4-6 mm|
|Bulk density (g/ml)||0.64-0.70||0.60-0.68|
|Static Aborbing Capacity(RH60%)||≥21|
a. Adsorption performance
The adsorption of zeolite molecular sieve is a physical change process. Gravity causes of adsorption is mainly molecules in the solid surface to produce a "surface force", when the fluid flows through some of the fluid molecules due to the collision and irregular exercise to the surface of adsorbent, the surface molecules together, reduce the number of molecules in fluid, achieve the purpose of separation, remove.
b. Ion exchange performance
In general, ion exchange refers to the exchange of compensated cation outside the zeolite molecular sieve framework. Compensation outside of zeolite molecular sieve skeleton ion is usually protons and alkali metal or alkaline earth metal, they are easily in metal salt aqueous solution by ion exchange into various valence metal ionic type zeolite molecular sieve.
c. Catalytic performance
Most zeolites have strong acid centers on the surface of zeolite molecular sieves. These properties make it an excellent catalyst.
4A molecular sieve is mainly used for the drying of chemical gases, liquids, refrigerants, pharmaceuticals, electronic materials and volatile substances.
Typical uses as below:
Packing specification for 4a molecular sieve: 25kg paper drum or paper box or woven bag ,150kg steel drum.
keep dry, away from inflammable, corrodible, toxic goods.
Q1. Zhongbang provides 4A Molecular Sieve models as below.
0.4-0.8mm 1.6-2.5mm 2-4mm 3-5mm 4-6mm bar
Q2. The sample service requirements for Molecular Sieve 4A.
Normally, we can provide 1000g samples for free and you need to pay the related express fee.