초록 ▼

Disclosed is a process for the polymerization of olefins wherein olefinic compounds are separated from mixtures containing them with resulting improved utilization of olefinic compounds. Such olefinic compounds are separated by use of membrane separation units and can be recycled to a polymerization

Disclosed is a process for the polymerization of olefins wherein olefinic compounds are separated from mixtures containing them with resulting improved utilization of olefinic compounds. Such olefinic compounds are separated by use of membrane separation units and can be recycled to a polymerization zone.

대표청구항 ▼

An improved process for the manufacture of polymer comprising passing olefinic compound into a reaction zone; polymerizing a substantial portion of the olefinic compound so as to form a reaction mixture containing polymer and olefinic compound; passing a stream comprising reaction mixture to a separ

An improved process for the manufacture of polymer comprising passing olefinic compound into a reaction zone; polymerizing a substantial portion of the olefinic compound so as to form a reaction mixture containing polymer and olefinic compound; passing a stream comprising reaction mixture to a separation zone wherein the stream is separated into a polymer fraction and a fraction comprising a mixture of olefinic compound and saturated material; recovering polymer; passing at least a portion of the mixture comprising olefinic compound and saturated material to a membrane separator which substantially separates olefinic compound from saturated material; removing olefinic compound which has been separated in the membrane separation zone by use of saturated hydrocarbon sweep fluid; and recycling the recovered olefinic compound and sweep fluid to the reaction zone.