Other

Degussa Aktiengesellschaft

Alexander M&ouml;ller

Klaus Huthmacher

Willi Hofen

Georg Thiele

Steffen Krill

The present invention relates to a process for the working up of a product stream from the epoxidation of olefins that contains olefin, olefin oxide, water-miscible organic solvent and water, by separating this product stream into an overhead product containing olefin, olefin oxide and organic solvent, and into a bottom product containing organic solvent and water, wherein the separation takes place in a pre-evaporator with at most 5 theoretical separation stages, and 20 to 60% of the total amount of organic solvent introduced with the product stream is removed with the overhead product and the residue remains in the bottom product, as well as a process for the epoxidation of olefins that includes this working up stage.

Process for the epoxidation of olefins

Process for the selective preparation of &bgr;-isophorone epoxide by epoxidation of &bgr;-isophorone with organic percarboxylic acids at a water content of less than 5 wt. %.

Growing community of inventors

Gelnhausen, Germany

Alexander Möller

Growing community of inventors

Gelnhausen, Germany

Alexander M&ouml;ller

Alexander Möller