Crystallizer temperature control via fluid control

Details Crystallizer temperature control via fluid control Crystallizer temperature control via fluid control

B - Operations, Transporting

29

B

B29B 13/02 (2006.01) B29B 9/02 (2006.01)

Patent

CA 2651913

A method of crystallizing a plurality of crystallizable polymer pellets includes a step in which the pellets are contacted with a temperature adjusting fluid in a crystallizer. The fluid adjusts the temperature of the pellets by having a temperature sufficient to allow at least partial crystallization of the plurality of polymeric pellets while maintaining the average pellet temperature of the plurality of pellets below the melting temperature of the pellets. A crystallizer implementing the methods of the invention is also provided.

L'invention concerne un procédé destiné à cristalliser une pluralité de granulés de polymère cristallisables et consistant à mettre les granulés en contact avec un fluide d'ajustement de température dans un cristalliseur. Le fluide ajuste la température des granulés de façon que la température soit suffisante pour permettre la cristallisation au moins partielle de la pluralité de granulés polymériques, la température moyenne de la pluralité de granulés étant maintenue à un niveau inférieur à la température de fusion des granulés. L'invention concerne également un cristalliseur permettant de mettre en oeuvre les procédés de l'invention.

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