Zeolite Summary: Zeolite is a cubic lattice of aluminosilicate molecular sieves having a compound having a uniform porous structure, its uniform hole diameter, these pores can adsorb molecules smaller diameter than the internal bore. and polar molecules and molecules with priority saturated adsorption capacity, which can different degree of polarity and different degree of saturation, molecules of different sizes and different boiling molecules separated, that has the effect of 'screening' of molecules, so called molecular sieves . sieve to allow only smaller than its microporous material through its pores large macromolecules, bacteria, etc. are having a barrier effect due to the molecular sieve having high adsorption capacity, high thermal stability other sorbents that are not so Zeolite molecular sieves widely applied absorbent ability, for the purification of process gases, should be stored to avoid direct exposure to the air. sieve avoid oil and liquid water. should be used to avoid contact with oil and liquid water.
Zeolite types: zeolite crystal structure common prefix Digital will classify the different molecular sieves, such as Type 3A, 4A type molecular sieves and other commonly used models;.
Type A: K A (3A), sodium A (4A), calcium A (5A), X-type: Ca X (10X), sodium X (13X)
Chemical formula: 2 / 3K2O`1 / 3Na2O`Al2O3`2SiO2`9 / 2H2O
Al ratio: SiO2 / Al2O3≈2 effective pore size: about 3A
Applications: all kinds of liquid gas `` `cracked gas refrigerant and air dried and dehydrated` unsaturated carbohydrates and other polar compounds.
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