molecular sieve


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mo·lec·u·lar sieve

a gellike material with pore sizes of such ranges as to exclude molecules above certain sizes; used in fractionating or purifying macromolecules.

molecular sieve

1 a crystalline chemical separation device with molecular size pores that adsorbs small but not large molecules.
2 a cross-linked polymer that forms a porous sieve used as a supporting medium for chromatographic separation of mixtures of solutes.

molecular sieve

A material (e.g., oxides: silicate, aluminate, zeolite crystals with pores) which is capable of separating molecules based on size.

molecular sieve

A type of sieve in which the molecular material present in the gel or crystal will adsorb molecules of a certain kind and let others pass.
See also: sieve
References in periodicals archive ?
After doping with Ce, the acid density of the molecular sieve decreased.
Determination of gas permeability in the voids is necessary to determine the effective permeability of the "void and molecular sieve phase.
The synthetic molecular sieve adsorbents were invented more than 30 years ago by the company that is now known as Molsiv Adsorbents, which is headquartered in Des Plaines, Illinois; research on both ABSCENTS and SMELLRITE is conducted in UOP facilities in Tarrytown, New York.
Limited Tenders are invited for Supply Of Molecular Sieve And Activated Alumina
Filter types include stainless steel and copper gauze, molecular sieve, activated charcoal, pleated polypropylene in 2-, 5-, and 20-[micro]m pore sizes and Sodasorb.
Incorporating many of the features of Nucon Wittmann's existing CDD Series, the new models add the benefit of a high-efficiency molecular sieve to rapidly remove moisture from the PET resin, and offer an adjustable and stable dewpoint for the drying process.
Limited Tenders are invited for Service Contract For Feed Gas Dryer A And B Molecular Sieve And Ceramic Ball Replacement At Gail(India) Limited, Gpu-Gandhar
The drying train package includes two canisters filled with molecular sieve and circulation pump, and it can be used if a house supply of inert gas is not available.

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