Evonik Degussa Gmbh

Huels Aktiengesellschaft

Evonik Operations Gmbh

Evonik Oxeno Gmbh

Evonik Oxeno Gmbh & Co. Kg

Udo Lenz

Dirk Fridag

Robert Franke

Michael Grass

Anton Schoengen

Reinhard Sigg

Florian Boeck

Corinna Hecht

Christoph Hiller

Benedikt Dercks

Stefan Münzner

Christoph Ehlers

Klaus-Diether Wiese

Hans-Gerd Lueken

Alfred Kaizik

Wilfried Bueschken

Markus Priske

Wilfried Büschken

Soenke Broecker

Markus Rudek

Hans-Gerd Lüken

Ulrich Neutzler

Frank Hoeper

Hermann-Josef Schulte-Althoff

Patrick Muhlack

Christoph Patalong

Frank Höper

Sönke BRÖCKER

The present invention relates to a method for preparing saturated C- and C-alcohols, wherein the separation of the C-alcohols and the C-alcohols is effected by means of at least one two-column system or by means of at least one dividing wall column.

Method for obtaining alcohols from aldehydes

The present invention relates to a method for preparing saturated C- and C-alcohols, wherein the ratio of C- to C-alcohols is controlled by a distillative separation of the aldehydes used.

Method for obtaining alcohols from aldehydes III

The present invention relates to a method for preparing saturated C- and C-alcohols, wherein the ratio of C- to C-alcohols is controlled by the diversion of substreams in individual method steps.

Method for obtaining alcohols from aldehydes II

The present invention relates to a method and a device for controlling the viscosity of reaction solutions in the hydroformylation of olefin-containing mixtures.

Control of the viscosity of reaction solutions in hydroformylation processes

A process for preparing a Caldehyde mixture from a hydrocarbon mixture comprising at least one linear butene by terminal hydroformylation under isomerizing conditions, using a catalyst system comprising rhodium, a bisphosphite ligand, and an amine.

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A process for preparing crude dimethyl terephthalate, comprises oxidizing a mixture comprising para-xylene and methyl para-toluate, esterifying the oxidized mixture with methanol, separating the resulting crude ester into fractions. By separating the crude ester with a distillation column containing structured packing and using a lower bottom temperature, product yield is increased, and the process is made more economical.

Process for the distillation of crude ester in the DMT/PTA process

A process for purifying a crude ester containing dimethyl terephthalate, includes flash distilling a mixture including para-xylene and methyl para-toluate, and separating the crude ester into fractions. By separating the crude ester with a distillation column containing structured packing and using a lower bottom temperature, product yield is increased, and the process is made more economical.

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Recklinghausen, Germany

Udo Lenz