Zeolites are microporous, aluminosilicate minerals commonly used as
commercial adsorbents. Zeolites also crystallize in post-depositional environments over
periods ranging from thousands to millions of years in shallow marine basins. Naturally
occurring zeolites are rarely pure and are contaminated to varying degrees by other
minerals, metals, quartz, or other zeolites. For this reason, naturally occurring zeolites
are excluded from many important commercial applications where uniformity and
purity are essential. Zeolites have been shown to be useful catalysts in a large variety of
reactions, from acid to base and redox catalysis.
Keywords: Zeolite classification, zeolite structure, oxidation processes, zeoliteoxide
catalysts, hydrocracking catalysts, hydrothermal treatment.
