Process for preventing fouling in a gas phase polymerization reactor

摘要

A process for preventing fouling in a gas phase polymerization reactor wherein particles of polymer and/or copolymer are produced is provided. An antistatic agent is added to the polymerization zone of the reactor in an amount sufficient to substantially reduce or prevent adherence of the polymer and/or copolymer particles to the walls of the reactor and to reduce the tendency of the polymer and/or copolymer particles to agglomerate. The antistatic agent is preferably added to the polymerization zone by admixing it with a liquid carrier and introducing the resulting mixture thereto. In a continuous polymerization process wherein comonomers are copolymerized to produce particles of copolymer, the carrier used can be a liquid comonomer.