Fluorinated ethylene-propylene polymeric membranes for gas separations
AssigneeUop LLC
InventorsChunqing Liu, Zara Osman, Howie Q. Tran, Changqing Lu, Andrew J. Poss, Rajiv R. Singh, David Nalewajek, Cheryl L. Cantlon
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Abstract
A fluorinated ethylene-propylene polymeric membrane comprising a copolymer comprising 2,3,3,3-tetrafluoropropene and vinylidene fluoride is disclosed. The fluorinated ethylene-propylene polymeric membranes of the invention are especially useful in gas separation processes in air purification, petrochemical, refinery, and natural gas industries.
Claims13
A process of separating at least two gases or two liquids comprising contacting said gases or liquids with a membrane comprising a copolymer comprising 10 to 99 mol % 2,3,3,3-tetrafluoropropene-based structural units and 1 to 90 mol % vinylidene fluoride-based structural units.
Dependencies are inferred from the claim text.