Process for production of propylene homopolymers

Details Process for production of propylene homopolymers Process for production of propylene homopolymers

C - Chemistry, Metallurgy

08

F

C08F 110/06 (2006.01) C08F 2/00 (2006.01)

Patent

CA 2600364

A process for producing propylene homopolymers comprises producing a homopolymer in a reactor train having a first stage and a second stage, wherein the first stage is normally used for homopolymer production and the second stage is normally used only in the production of copolymer blends, and is left idle during homopolymer production. According to the invention, during the production of propylene homopolymer, the polymerization is carried out sequentially in both the first stage and second stage reactors.

L'invention concerne un procédé de production d'homopolymères de propylène consistant à produire un homopolymère dans un ensemble de réacteurs comprenant un premier et un second étage. Le premier étage est utilisé normalement pour la production d'homopolymères et le second étage est utilisé en règle générale uniquement dans la production de mélanges copolymères, ce second étage restant au ralenti lors de la production d'homopolymères. Selon l'invention, lors de la production d'un homopolymère de propylène, la polymérisation est effectuée de façon séquentielle dans les réacteurs de premier et de second étage.

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