Epoxidation process comprising a polymer-encapsulated noble...

C - Chemistry – Metallurgy – 07 – D

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C07D 301/06 (2006.01)

Patent

CA 2624245

A process is disclosed for the epoxidation of an olefin with hydrogen and oxygen in the presence of an oxidation catalyst comprising a transition metal zeolite and a polymer-encapsulated noble metal catalyst. The noble metal catalyst comprises a noble metal and an ion-exchange resin. The process using the polymer-encapsulated noble metal catalyst gives higher epoxide productivity than a process that uses a noble metal catalyst which is not encapsulated by a polymer.

La présente invention concerne un procédé d'époxydation d'un alcène avec de l'hydrogène et de l'oxygène en présence d'un catalyseur d'oxydation comprenant une zéolithe de métal de transition et un catalyseur de métal noble encapsulé par un polymère. Le catalyseur de métal noble comprend un métal noble et une résine échangeuse d'ions. Le procédé utilisant le catalyseur de métal noble encapsulé par un polymère offre une productivité en termes d'époxyde supérieure par rapport à un procédé qui utilise un catalyseur de métal noble qui n'est pas encapsulé par un polymère.

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