Evonik Degussa Gmbh

Evonik Operations Gmbh

Evonik Oxeno Gmbh

Evonik Oxeno Gmbh & Co. Kg

Oxeno Olefinchemie Gmbh

Evonik Industries Ag

Evonik Rohm Gmbh

Dirk Fridag

Robert Franke

Katrin Marie Dyballa

Dieter Hess

Frank Geilen

Matthias Beller

Johannes Knossalla

Kaiwu Dong

Peter Kucmierczyk

Alexander Brächer

Ralf Jackstell

Siegfried R Waldvogel

Detlef Selent

Ana Markovic

Helfried Neumann

Anna Chiara Sale

Bernd Elsler

Hans-Gerd Lueken

Bart Hamers

Andrea Christiansen

Klaus-Diether Wiese

Markus Priske

Alfred Kaizik

Marc Becker

Burkard Kreidler

Wilfried Bueschken

Udo Lenz

Armin Boerner

Guido Stochniol

Michael Grass

Dietrich Maschmeyer

Joachim Knebel

Armin Börner

Dagmara Ortmann

Florian Boeck

Stephan Peitz

Cornelia Borgmann

Markus Winterberg

Horst-Werner Zanthoff

Helene Reeker

Peter Wasserscheid

Armin Matthias Rix

Wilfried Büschken

Goetz Baumgarten

Thorben Schütz

Frederik Gluth

Christine Maria Breiner

Jens Holz

Marc Schäpertöns

Benedikt Dercks

Bernd Hannebauer

Bernhard Schemmer

Bjoern Wechsler

Corinna Hecht

Thomas Quell

Christoph Hiller

Christoph Ehlers

Mathias Enders

Stefan Drees

Markus Schwarz

Hermann-Josef Schulte-Althoff

Hanna Hahn

Galina Morales Torres

Stefan Nordhoff

Nicole Brausch

Uwe Ernst

Peter Kreis

Julia Strautmann

Jörg Schallenberg

Harald Häger

Oliver Moeller

Stefan Münzner

Michael Mirion

Markus Rudek

Kerstin Romeike

Anton Wiebe

Soenke Broecker

Lena Altmann

Michael Graβ

Mario Gomez Andreu

Frank Brocksien

Marina Lazar

Reiko Jennerjahn

Ricarda Dühren

Hans-Gerd Lüken

Frank Hoeper

Marco Haumann

Patrick Muhlack

Michael Jakuttis

Martin Oldemeyer

Oliver Möller

Christoph Kubis

Matthias Blug

Samet Gülak

Xiangjie Fang

Christoph Patalong

Ivana Fleischer

Xianjie Fang

Doris Neumann

Sebastian Werner

A process for providing a carbon monoxide-containing stream involves a separation of synthesis gas into a hydrogen-rich gas stream and a carbon monoxide-rich gas stream containing carbon monoxide to an extent of 85% by volume or more. The separation is effected in an arrangement composed of three membrane separation stages. Prior to the performance of the membrane separation, the synthesis gas is pretreated for removal of secondary components present in the synthesis gas.

Process for producing carbon monoxide-containing streams

The invention relates to a process for separating one or more components from a mixture by a membrane separation in which—depending on the component to be separated—an acid or a base is added to the mixture before the membrane separation.

Process for separating one or more components from a mixture

Process for alkoxycarbonylation of ethylenically unsaturated compounds using benzene-based diphosphine ligands and aluminium triflate.

Process for alkoxycarbonylation of ethylenically unsaturated compounds using benzene-based diphosphine ligands and aluminium triflate

An apparatus, for automated sampling from vessels that may be under a high pressure, is achieved by a specific construction with multiple multiport valves. A method of automated sampling can be used with the apparatus.

Automated sampling

A process for preparing Caldehydes involves hydroformylation of butenes with synthesis gas in the presence of a homogeneous catalyst system and a solvent. It is a feature of the process that the aldehyde concentration in the reaction mixture is limited.

Process for preparing Caldehydes

A process can be used for preparing aldehydes from C2 to C20 olefins with a subsequent thermal separation for removal of the aldehyde formed. The process involves a membrane separation, which is preceded by performance of a gas exchange by which the proportion of the partial pressure represented by carbon monoxide or hydrogen is increased in order to reduce catalyst losses.

Optimized thermal separation by prior gas exchange

A process for preparing aldehydes by a homogeneously catalysed hydroformylation of Cto Colefins involves withdrawing a biphasic stream (liquid/gaseous) and expanding in two stages. Before, between, or after the two stages, the liquid phase is cooled. Only after expansion and cooling is the homogeneously dissolved rhodium catalyst system separated from the residual stream.

Process for preparing aldehydes and cooling a stream of matter

A process for preparing aldehydes by a homogeneously catalyzed hydroformylation of Cto Colefins involves withdrawing a biphasic stream (liquid/gaseous) and expanding in two stages. Before, between, or after the two stages, the liquid phase is cooled. Only after expansion and cooling is the homogeneously dissolved rhodium catalyst system separated from the residual stream in a three-stage removal.

Bisphosphite ligands based on benzopinacol with an open outer unit, and the use thereof in hydroformylation.

Bisphosphite ligands based on benzopinacol with an open outer unit

Diphosphites having an open, 2,4-methylated outer unit and use thereof in hydroformylation.

Diphosphites having an open, 2,4-methylated outer unit

Bisphosphite ligands based on benzopinacol, and the use thereof in hydroformylation.

Bisphosphite ligands based on benzopinacol

Diphosphites having an open, 3-methylated outer unit and use thereof in hydroformylation.

Diphosphites with an open, 3-methylated outer unit

Mixture of bisphosphites having an open and a closed outer unit and the use thereof as a catalyst mixture in hydroformylation.

Mixture of bisphosphites having an open and a closed outer unit and the use thereof as a catalyst mixture in hydroformylation

Diphosphites having an open and a closed 2,4-methylated outer unit and use thereof in hydroformylation.

Diphosphites having an open and a closed 2,4-methylated outer unit

The invention provides a process for preparing an alcohol by hydrogenating an ester which is obtained by alkoxycarbonylating a C2 to C20 hydrocarbon having at least one multiple bond, preferably having at least one olefinic double bond, in which the homogeneous catalyst system used is separated from the product mixture by means of membrane separation. In a development of the present invention, the ester thus formed is converted to another ester by transesterification and then hydrogenated.

Process for preparing an alcohol from hydrocarbons

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Haltern am See, Germany

Dirk Fridag