The MCS Zeolite Page

What is Zeolite

Zeolite is an inorganic porous material having a highly regular structure of pores and chambers that allows some molecules to pass through, and causes others to be either excluded, or broken down. It is in many ways, the inorganic equivalent of organic enzymes, many of which also have specific sized chambers that trap chemicals within our bodies, holding them where they either break down, or react with specific chemicals.

What a zeolite does, and how it does it, depends upon the exact shape, size, and charge distribution of the lattice structure of the zeolite. There are hundreds of different zeolites found in nature and made by man.

How is Zeolite Formed?

In nature, zeolites are often formed where volcanic rock of specific chemical composition is immersed in water so as to leach away some of the components. Composition and pore size, of course, depend upon what kind of rock minerals are involved.

Industry has mimicked some of the natural zeolites, and formed many new ones targeted towards very specific purposes. Many of these are used in the petrochemical industry to "crack", or break down various raw materials to form specific chemicals like gasoline. Other zeolites of this kind are used to break down odors at home and at work. Some can be purchased through the links below.

Others are used as simple molecular sives, separating ozygen, argon, nitrogen, and other components of air. Linde and Airco are two well known corporations using zeolites to extract and purify industrial gases.

Most of these corporations are involved in active research regarding the formulation and use of zeolites.

Intro to Molecular Sieves - Chapter 2: Zeolite Nomenclature The word 'zeolite' is Greek in origin and means 'boiling stones' as natural zeolites visibly lose water when heated. Today the word, as strictly defined,..

Zeolite Products and Merchants

Zeolite Super Odor Eliminator Products
Allergy Store
Natural Zeolite Products
HouseBun Digest: Re: Carefresh litter
Allergy Alternatives: Furnace Filters

Other Information and Links

Allergy! Is Your World Making You Sick? - Pollution Page
Allergy: Cerebral; Causes & Symptoms
THE HINDU ONLINE Zeolites for Detergents


The zeolite-covered screen reactor - a dust-resistant, low pressure drop-react
Zeolite Space
sci.geo.petroleum: Re: Info on Zeolite
Industrial applications of zeolite catalysis

Technical Product Information

Zeolite ZSM-5 Products
Schematic drawing of the pore structure of zeolite ZSM-5.Hydrocracking
Zeolite Mordenite Products
Zeolite Beta Products

Misc Unclassified

Zeolite Crystal Growth research, NASA
Zeolite Group: Individual Projects
Proc. 10th International Zeolite ConferenceBenzene in Faujasite-Type Zeolites.
Zeolite Molecular Sieve Project
Development of a zeolite catalyst for NOx removal from diesel exhaust gas
Metal supported zeolite membranes
Permeation of gases through a silicalite-1 zeolite membrane: applied to air pu
xtal-3d VRML zeolite crystal structures
Bureau of Innovation and Consultancy [ Zeolite ]
Applications: Use of Zeolite Li-Xfor Separation of Nitrogen and Oxygen crystal structure of LiX as used in the Cerius² Sorption simulation.
ZEOLITE - Molecular sieves and catalysts from rice husks.
Skeletal isomerisation of olefins with the zeolite ferrierite as catalyst
Interaction of Water and Methanol with a Zeolite at High Coverages IBM Research

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