Continuous process for the preparation of polytrimethylene...

Details Continuous process for the preparation of polytrimethylene... Continuous process for the preparation of polytrimethylene...

C - Chemistry, Metallurgy

07

C

C07C 41/09 (2006.01) B01D 3/00 (2006.01) B01J 8/04 (2006.01) B01J 10/00 (2006.01) B01J 19/24 (2006.01) C07C 43/13 (2006.01) C08G 65/34 (2006.01)

Patent

CA 2389800

The invention is a continuous process for the preparation of polytrimethylene ether glycol from 1,3-propanediol reactant. In addition, the invention is directed to a continuous multi-stage process comprising reacting at least one reactant in a liquid phase in an up-flow column reactor, and forming a gas or vapor phase by-product wherein the gas or vapor phase by-product is continuously removed at the top and at least one intermediate stage.

L'invention concerne un procédé en continu de préparation de l'éther de polytriméthylèneglycol, à partir d'un réactif à base de 1,3-propanediol. En outre, l'invention porte sur un procédé en continu, à plusieurs étages, consistant à faire réagir au moins un réactif dans une phase liquide, dans un réacteur à colonne à circulation ascendante, et à former un sous-produit à phase gazeuse ou vapeur que l'on élimine en continu au niveau de l'étage supérieur et d'au moins un étage intermédiaire.

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