Shell Oil Comapny

Alexander Jan Van Der Veen

Ingmar Hubertus Josephina Ploemen

Hendrik Dirkzwager

Eduardus Petrus Simon Schouten

Willem Derks

Johannes Petrus Van Der Linden

Augustinus Santen

Rutger Johannes Franciscus Wermeling

Johannes Folkert Postma

A process for the preparation of alkylene oxide, which process involves mixing fresh feed containing organic hydroperoxide and alkene with a recycle stream to obtain a reaction mixture containing of from 5 to 80% wt of alcohol, based on total amount of reaction mixture, contacting the reaction mixture with a heterogeneous epoxidation catalyst to obtain a stream containing alkylene oxide and alcohol, and recycling of from 30 to 95% wt of the stream obtained in step (ii) to step (i).

Process for the preparation of alkylene oxide

A process for the preparation of alkylene oxide, which process involves passing a feed containing an organic hydroperoxide and alkene through a bank of at least two serially connected reactors containing epoxidation catalyst and withdrawing a product stream having alkylene oxide and an alcohol as reaction products, in which bank of reactors the temperature of the feed is controlled such that during operation the outlet temperature of the final reactor is at least 4&#xb0; C. higher than the outlet temperature of the first reactor.

Process for preparing alkylene oxide (epoxid, oxirane)

Process for the preparation of alkylene oxide which process comprises contacting organic hydroperoxide and alkene with a heterogeneous epoxidation catalyst and withdrawing a product stream comprising alkylene oxide and an alcohol as reaction products, in which process fresh catalyst is contacted with feed having a higher molar ratio of alkene to organic hydroperoxide than the molar ratio of normal operation.

Process for preparing alkylene oxide

Growing community of inventors

Amsterdam, Netherlands

Alexander Jan Van Der Veen