Yu and zeolite 3a molecular sieve metallic luster, hardness of 3~5, relative density is 2~2.8, colored with natural zeolite, synthetic zeolite is white, insoluble in water, thermal stability and resistance to acid increasing with the improved SiO2/Al2O3 ratio.mole sieve dehydration have very large surface areas, 300~1000m2/g, Crystal surface in highly polarized, is a kind of high efficiency adsorbent, also a solid, the surface has a high acid concentration and intensity, can cause the carbenium ion-catalyzed reactions.When the composition of the metal ion exchange with other ions in solution, you can adjust the aperture, change its adsorption and catalytic properties, which produce different molecular sieve catalysts.
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