 4A Molecular Sieve Series
4A Zeolite is white solid powder. A reticular structure, with uniform pore, pore size of 0.42 nm, specific surface area is about 600 m2 / R, insoluble in water and organic solvent, can dissolve in alkali and acid. Heating exceeds 800 ?/SPAN>, recrystallization form white silica shape of structure.
The molecular sieve powder have the effective performances of adsorption and selectivity.We supply verious kind of Molecular sieve,such as type A,X,and Y crystal structure,and it is suitable with application of insulating glass desiccant,refrigerant desiccant.
Huiying Chemical Industry (QuanZhou) Co., Ltd. has been actively involved in development and production of zeolite products for more than 19 years. We continue to provide verious kind of zeolite products for our customers.
The aperture of 4a molecular sieve is 4A that couldn’t adsorb any molecule greater than 4a(including dimethylmethane).4A molecular sieve is one of maximum varieties volume. Mainly use in natural gas, liquid desiccant and H2O, NH3, H2S, CO2, SO2, CO adsorption. Widely use in ethanol dehydration.
|
Type |
4A Molecular Sieve |
|
Chemical Formula |
NaO.Al2O3.SiO2.4.5H2O |
|
Color&Shape |
White Powder |
|
Crystallinity% |
~100% |
|
Water Adsorbance% |
>/=27 |
|
CO2 adsorptive value% |
_ |
|
Ignition on Loss%(575º C 1h) |
=/<22 |
|
PH(5%) |
=/<11.5 |
|
Bulk Density |
0.4 |
|
Usage |
1. Deeply Drying for air,natural gas,rare gas,refrigerant(R12、R22);
2.Static Desiccant for drug packaging,electronic component etc.
3.As dehydrator of paint,fuel and coating. |
| Specification of zeolite molecular sieve powder |
| Type Specification |
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 |
| Cryctalline |
~100% |
~100% |
~100% |
~100% |
| Absorbed water |
>/=25 |
>/=27 |
>/=28 |
>/=32 |
| Absorbed CO 2% |
|
|
>/=22.5 |
>/=22.5 |
| Ignition |
=/<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 |
0.5 |
0.4 |
0.6 |
0.4 |
| Use |
Used in dehydration of ethylene,propylene and ethanol |
Used in dehumidification of oil-gas |
Used in air-purification and PSA |
Used in purification of air with air separation equipment, and separation of gas or liquid |
| Determination of in the RH = 50% and under 25 º C in the amount of water per 100 grams of adsorbent. |
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