Patent ID: 6413477
Filing Date: 2002-07-02
Classification: B01J,C08F,Y10S

Abstract:
Apparatus for the gas-phase polymerization of &agr;-olefins, comprising: a first vertical cylindrical reactor equipped with a catalyst feedline; and a second vertical cylindrical reactor equipped with a polymer discharge system; the upper region of said first reactor being connected by a first line to an inlet of a solid/gas separator which is in turn connected by its outlet for the solid to the upper region of said second reactor; the lower region of said second reactor being connected by a second line to the lower region of said first reactor; and said solid/gas separator being connected by means of a recirculation line for the gaseous mixture that enters said first reactor in a region at the bottom of said first reactor below and separate from the point of entry of said second line to the first reactor.