C - Chemistry – Metallurgy – 08 – F
Patent
C - Chemistry, Metallurgy
08
F
C08F 2/00 (2006.01) B01J 19/24 (2006.01) C08F 10/00 (2006.01) C08F 210/16 (2006.01) C08F 110/02 (2006.01)
Patent
CA 2208363
The invention relates to a method for preventing fouling in polymerization reactors, in particular in loop reactors, in which alpha-olefins are polymerized or copolymerized in particle form in the presence of catalysts. A mixture of alpha-olefin-acrylonitrile copolymers and polymeric polyamines is added into a reactor in order to prevent the fouling of the reactor.
L'invention concerne un procédé empêchant l'encrassement des réacteurs de polymérisation, et plus particulièrement des réacteurs en boucle, dans lesquels des oléfines alpha sont polymérisées ou copolymérisées sous forme de particules en présence de catalyseurs. On ajoute un mélange de copolymères oléfine alpha/acronitrile et des polyamines polymères dans le réacteur afin d'empêcher son encrassement.
Allemeersch Paul
Strobbe Guy
Vanheer Edwin
Borealis Polymers Oy
Marks & Clerk
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