Evonik Degussa Gmbh

Momentive Specialty Chemicals Inc.

Bart Van Den Berg

Prasad Muppa

Holger Wiederhold

Ron Postma

Stefan Bernhardt

Hans Rausch

Jörg Schallenberg

Jürgen Stock

Juergen Stock

Mark Kapellen

Paul Haesakkers

Jorg Schallenberg

Apparatus and processes are provided for forming epoxide compounds. In one embodiment, a process for the manufacture of an epoxide is provided including adding an oxidant, a water-soluble manganese complex and a terminal olefin to form a multiphasic reaction mixture, reacting the terminal olefin with the oxidant in the multiphasic reaction mixture having at least one organic phase in the presence of the water-soluble manganese complex, separating the reaction mixture into the at least one organic phase and an aqueous phase, and reusing at least part of the aqueous phase. The invention is also related to a device for performing the above process.

Process for the manufacture of a 1,2-epoxide and a device for carrying out said process

Apparatus and methods are provided for forming and processing multiphasic systems. In one embodiment, the invention provides a process for the manufacture of an epoxide, including reacting an olefinically unsaturated compound with an oxidant in the presence of a buffer component and a water-soluble manganese complex disposed in an aqueous phase having a first pH level in a first multiphasic system, adjusting the pH of the aqueous phase to a second pH level less than the first pH level, isolating at least a portion of the aqueous phase from the first multiphasic system, adjusting the pH of the at least a portion of the aqueous phase to a third pH level greater than the second pH level, and introducing the at least a portion of the aqueous phase into a second multiphasic system.

Apparatus and methods to preserve catalyst activity in an epoxidation process

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Vondelingenplaat, Netherlands

Bart Van Den Berg