Evonik Degussa Gmbh

Huels Aktiengesellschaft

Evonik Operations Gmbh

Evonik Oxeno Gmbh

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.

[object Object]

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