Process for the production of polymer

C - Chemistry – Metallurgy – 08 – F

Patent

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Details

C08F 2/01 (2006.01) B01J 8/24 (2006.01) B01J 8/42 (2006.01) B01J 19/08 (2006.01) B01J 19/24 (2006.01)

Patent

CA 2301947

A process, particularly a gas phase fluidised bed process, for the production of polymers avoids formation of sheets or chunks within the reactor, without the need to use antistatic agents, which can reduce the activity of the catalyst or alter the characteristics of the yielded product. According to the invention, a device generates a corona discharge in the polymerisation reactor during the polymerisation process; an AC voltage difference is applied between the elements which constitute the discharging pair of the device.

L'invention se rapporte à un procédé de production de polymères, notamment à un procédé en lit fluidisé en phase gazeuse, qui permet d'éviter la formation de feuilles ou de fragments au sein d'un réacteur, sans recours à des agents antistatiques, ce qui permet de réduire l'activité du catalyseur ou de modifier les caractéristiques du produit obtenu. Conformément à cette invention, un dispositif génère une décharge par effet de couronne dans le réacteur de polymérisation au cours du processus de polymérisation et une différence de potentiel en C.A. est appliquée entre les éléments qui constituent la paire de décharge du dispositif.

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