molecular sieve


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molecular sieve

[mə′lek·yə·lər ′siv]
(chemistry)
A naturally occurring or synthetic zeolite characterized by the ability to undergo dehydration with little or no change in crystal structure, thereby offering a very high surface area for adsorption of foreign molecules.

molecular sieve

An adsorbent composed of porous aluminosilicates with pores of uniform molecular dimensions which will selectively absorb molecules of the substance to be gathered.
References in periodicals archive ?
This is an important design and performance characteristic for monitoring and rapidly detecting H2O breakthrough from molecular sieve adsorbent beds.
9-(5-methyl-1,3,4-thiadiazol-2-ylthio) octadecanoic acid (3a) :To a stirred solution of 2-Mercapto-5-methyl-[1, 3, 4] Thiadiazde in Sulfuric acid (15mL 70%) was added molecular sieve ( 0.75 g ).
Thus, the raw powder of the molecular sieve was ground up with KBr in the ratio of 1:200 to obtain the KBr pellet.
Luo, "Facile synthesis of micron-sized hollow copper spheres with ZSM-5 molecular sieve as a template," Journal of Raman Spectroscopy, vol.
The structure of AlPO molecular sieves is mainly composed of Al-O-P linkages and is very similar to that of zeolite.
By 1954, largely through the championship of Bob Milton, Linde had announced it was entering the business of manufacturing and selling molecular sieve zeolites as a new class of industrial adsorbents, and in 1959 as hydrocarbon conversion catalysts--a remarkable example of discovery to commercialization of a new business venture in just five years.
Suslick and his colleagues describe their molecular sieve in the October Nature Materials.
For example, molecular sieve processes require large bed sizes and very short cycle times, and reactions with metal oxides result in a nonregenerable waste product.
Mixed matrix materials comprising molecular sieve entities embedded in a polymer matrix have the potential to deliver such materials (2-5).
A previous recipient of The Design Council's Millenium Award, the company's range of Maxigas nitrogen gas generators uses a carbon molecular sieve to separate the oxygen from compressed air to provide high purity nitrogen alone.
A fractionation step and molecular sieve are used to get the solvent and monomer feed dry enough for the polymerization reaction.
[ClickPress, Wed Mar 20 2019] Adroit Market Research launched a study titled, "Global Zeolite Molecular Sieve Market Size 2017 By Application (Detergents, Catalysts, Others), By Region and Forecast 2018 to 2025".

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