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US 4,528,281 AGranted
Carbon molecular sieves and a process for their preparation and use
AssigneeCalgon Carbon Corporation
InventorRobert F. Sutt, Jr.
Life of this patent
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AssigneeCalgon Carbon Corporation
InventorRobert F. Sutt, Jr.
Estimating the term…
The instant invention is directed to a molecular sieve comprising a carbonaceous substrate selected from the group consisting of molecular sieve carbon, calcined coconut char, oxidized and devolatilized agglomerated coal, calcined agglomerated coal and calcined agglomerated coconut char, impregnated with an organic polymer having a molecular weight of at least 400, as determined by vapor phase osmometry, or with an inorganic polymer at a dosage of at least 0.001 weight percent (based on the substrate weight) up to a maximum dosage which still allows the resulting sieve to separate gas or liquid mixtures containing components of at least two different molecular diameters, molecular weights or molecular shapes. The instant invention is also directed to a process for preparing the molecular sieve and to a process for using it to separate gas or liquid mixtures.
A molecular sieve comprising a carbonaceous substrate selected from the group consisting of molecular sieve carbon;
A molecular sieve comprising a carbonaceous substrate selected from the group consisting of molecular sieve carbon;
A process for preparing a molecular sieve, comprising impregnating a carbonaceous substrate selected from the group consisting of molecular sieve carbons;
A process for preparing a molecular sieve, comprising impregnating a carbonaceous substrate selected from the group consisting of molecular sieve carbon;
Dependencies are inferred from the claim text.