zeolite

Definitions

  • WordNet 3.6
    • n zeolite any of a family of glassy minerals analogous to feldspar containing hydrated aluminum silicates of calcium or sodium or potassium; formed in cavities in lava flows and in plutonic rocks
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Webster's Revised Unabridged Dictionary
    • n Zeolite (Min) A term now used to designate any one of a family of minerals, hydrous silicates of alumina, with lime, soda, potash, or rarely baryta. Here are included natrolite, stilbite, analcime, chabazite, thomsonite, heulandite, and others. These species occur of secondary origin in the cavities of amygdaloid, basalt, and lava, also, less frequently, in granite and gneiss. So called because many of these species intumesce before the blowpipe.
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Century Dictionary and Cyclopedia
    • n zeolite A generic name of a group of hydrated double silicates in which the principal bases are aluminium and calcium or sodium. They are closely allied to the feldspars among anhydrous silicates. They are decomposed by acids, often with gelatinization; and most of them intumesce before the blowpipe. Among them are analcite, chabazite, harmotome, stilbite, etc. They occur most commonly in cavities and veins in basic igneous rocks, as basalt or diabase, as at Bergen Hill, New Jersey; they thus often fill the cavities in amygdaloid.
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Chambers's Twentieth Century Dictionary
    • n Zeolite zē′ō-līt the common name of a large group of minerals often called the Zeolitic family—they are all soluble in acids, and most of them gelatinise in acids in consequence of silica being set free
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Etymology

Webster's Revised Unabridged Dictionary
Gr. to boil + -lite,: cf. F. zéolithe,
Chambers's Twentieth Century Dictionary
Gr. zeein, to boil, lithos, a stone.

Usage

In literature:

This is also partly true of the zeolites and granular limestone species with included minerals.
"Scientific American Supplement, No. 363, December 16, 1882" by Various
A variety of zeolite of a flesh-red color.
"Golden Days for Boys and Girls, Vol. XII, Jan. 3, 1891" by Various
These crystals," he said, "look a little like zeolites, but that can't be, zeolites need water to form, and there's no water on the Moon.
"All Day September" by Roger Kuykendall
Many diabases, especially those of the teschenite sub-group, are filled with zeolites.
"Encyclopaedia Britannica, 11th Edition, Volume 8, Slice 3" by Various
A simple mineral of the Zeolite family, also called Cubizite, of frequent occurrence in the Trap-rocks.
"Principles of Geology" by Charles Lyell
Chabazite occurs with other zeolites in the amygdaloidal cavities of basaltic rocks; occasionally it has been found in gneisses and schists.
"Encyclopaedia Britannica, 11th Edition, Volume 5, Slice 7" by Various
It belongs to the Zeolite family, and is a hydrated silicate of lime and potash, containing also fluorine.
"The New Gresham Encyclopedia. Vol. 1 Part 2" by Various
The zeolites occur very commonly in cavities in igneous rocks, and also in mineral veins.
"Geology" by James Geikie
Upon the moss-clad slopes many fragments of quartz and zeolite were met with.
"In the Arctic Seas" by Francis Leopold McClintock
Isomorphous with heulandite is the strontium and barium zeolite brewsterite, named after Sir David Brewster.
"Encyclopaedia Britannica, 11th Edition, Volume 13, Slice 4" by Various
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In news:

Alkali phosphates-modified NaY zeolites may spur use of a sustainable feedstock for making acrylic acid, hope researchers at Nanjing University, Nanjing, China, and Hong Kong Baptist University, Hong Kong.
An Al–O–Mo linkage is the active species in a molybdenum-based zeolite catalyst that converts methane to benzene.
Minerals called "zeolites" can be used as a filling in particleboard and plywood.
FlexLiner is made with Silver Zinc Zeolite, whose silver ions inhibit microbes from growing, respirating or reproducing.
Catalysis by solid acids, which includes (modified) zeolites, is of special relevance to energy applications.
The application of silver zeolites with carbon to achieve bacteriostatic effects in filtration products continues.
The company's pretreatment chemistry and proprietary Macro Porous Zeolite (MPZ) absorbant media remove metals and organics from wastewater .
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In science:

Entropydriven pumping in zeolites and ion channels.
Ribosome recycling, diffusion, and mRNA loop formation in translational regulation
In systems such as zeolites, disorder modifies the diffusion of reacting chemical species and thus plays a crucial role in diffusion limited chemical reactions .
Perturbation theory for the effective diffusion constant in a medium of random scatterer
Materials such as clay minerals and zeolites are known for both their adsorptive and catalytic capabilities.
Sorption heat engines: simple inanimate negative entropy generators
Correlations also arise in diffusion of guest molecules in zeolite channels , electron hopping in Coulomb glass , motion of excitons at low temperatures in mixed naphthalene crystals , etc.
Persistent random walk on a site-disordered one-dimensional lattice: Photon subdiffusion
Recently, we showed how to employ this model to fit isotherms of adsorption of gases and vapours on zeolites and that the parameters could be interpreted as adsorption equilibrium constants.
Simple isotherm equations to fit type I adsorption data
The zeocarbon synthesized by Lee et al. is a zeolite X/activated carbon mixture composed by 38.5 mass % zeolite X, 35 mass % activated carbon, 10 mass % inert silica, and 16.5 mass % zeolite A and P.
Simple isotherm equations to fit type I adsorption data
Since the zeocarbon is a zeolite/activated carbon composite, that the adsorbate phase may be divided into identical weakly-interacting effective subsystems is again a suitable assumption for fitting and correlation purposes.
Simple isotherm equations to fit type I adsorption data
Such a situation can be created by embedding fixed ions in the rather accommodating structure of a zeolite matrix.
Effective drift and diffusivity in non-Gaussian random gradient flows
The case of the diffusion of benzene in zeolites with random ionic inclusions has been studied experimentally and has important technological applications .
Effective drift and diffusivity in non-Gaussian random gradient flows
The behaviour of alkanes adsorbed in zeolites, the formation of liquid crystal phases and the process of nucleation.
Computers and Liquid State Statistical Mechanics
These low-density class of cage-like materials, related to the zeolite topology, were first investigated by Nesper et al 1 .
First-principles study of lithium-doped carbon clathrates under pressure
Polymerization on internal, organophilic silica surfaces of dealuminated zeolites and feldspars.
Field-control, phase-transitions, and life's emergence
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