molecular sieve

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molecular sieve

n
(Elements & Compounds) chem a material that can absorb large amounts of certain compounds while not absorbing others and is thus suitable for use in separating mixtures
Collins English Dictionary – Complete and Unabridged, 12th Edition 2014 © HarperCollins Publishers 1991, 1994, 1998, 2000, 2003, 2006, 2007, 2009, 2011, 2014

molec′ular sieve′


n.
a compound with molecule-size pores, as some sodium aluminum silicates, that chemically locks molecules in them: used in purification and separation processes.
[1925–30]
Random House Kernerman Webster's College Dictionary, © 2010 K Dictionaries Ltd. Copyright 2005, 1997, 1991 by Random House, Inc. All rights reserved.
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Summary: This report provides prognosis and analysis of the Zeolite Molecular Sieves market.
Y-type zeolite molecular sieves are traditionally used as catalysts and adsorption materials.
He said the deal will concern upgrading the ammonia production unit and replacement of molecular sieves at absorption towers of the plant.
Following completion of this divestment, the filtration and adsorption business will be mostly recentered on molecular sieves, surfactants, oilfield chemicals, and phosphorus derivatives.
These nanoparticles include molecular sieves, nano-powders, nano-fibers, or desiccants.
Molecular sieves are often used in desiccant canisters to extract the moisture in the air circulating through the dryer.
The 4 A molecular sieves and formaldehyde were used as a removable solid template and weak reductant in the process, respectively The virtue of this method is that we can avoid the use of nonvolatile surfactants and polymers.
The topics include the deactivation and regeneration of solid catalysts, characterizing aged zeolite catalysts, modes of coke formation and deactivation, regenerating coked zeolite catalysts, hydrocracking, and deactivating molecular sieves in the synthesis of organic chemicals.
This extends across three different grades: standard grade solvents, which are suitable for most applications; molecular sieves grade solvents, which have been stored over molecular sieves for prolonged shelf life; and finally supreme grade solvents, which have been filtered through 0.2 micron filters.
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