Process for multi-step gaseous phase polymerization of olefins

Details Process for multi-step gaseous phase polymerization of olefins Process for multi-step gaseous phase polymerization of olefins

C - Chemistry, Metallurgy

08

F

402/396, 402/612

C08F 2/34 (2006.01) B01J 8/00 (2006.01) B01J 8/26 (2006.01) C08F 10/00 (2006.01)

Patent

CA 1201248

Abstract of the Disclosure A process for polymerizing an olefin in the gaseous phase in a multiplicity of steps in at least two independent polymerization zones connected to each other by a transfer passage, which comprises feeding an olefin and a catalyst into a first polymerization zone, polymerizing the olefin in the gaseous phase, intermittently or continuously withdrawing a gaseous stream containing the resulting polymer from the first zone and feeding it into said transfer passage, introduc- ing the withdrawn polymer-containing gaseous stream into a second polymerization zone through the transfer passage, feeding the or an olefin into the second zone with or without feeding an additional supply of the catalyst thereinto, and polymerizing the olefin in the gaseous phase in the second zone; characterized in that an inert gas zone is provided in the transfer passage, and at least a part of the gas components of the gaseous stream containing the polymer is replaced by an inert gas.

387595

Affiliated with

Also associated with

Rating

Process for multi-step gaseous phase polymerization of olefins does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Process for multi-step gaseous phase polymerization of olefins, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Process for multi-step gaseous phase polymerization of olefins will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFCA-PAI-O-1220000