Evonik Degussa Gmbh

Oxeno Olefinchemie Gmbh

Evonik Oxeno Gmbh

Evonik Industries Ag

Evonik Operations Gmbh

Huels Aktiengesellschaft

Evonik Oxeno Gmbh & Co. Kg

Dieter Hess

Dirk Fridag

Robert Franke

Katrin Marie Dyballa

Frank Geilen

Matthias Beller

Detlef Selent

Ralf Jackstell

Klaus-Diether Wiese

Kaiwu Dong

Helfried Neumann

Cornelia Borgmann

Armin Boerner

Andrea Christiansen

Bart Hamers

Alfred Kaizik

Burkard Kreidler

Wilfried Bueschken

Dirk Roettger

Dietrich Maschmeyer

Guido Stochniol

Michael Grass

Armin Börner

Hans-Gerd Lueken

Franz Nierlich

Renat Kadyrov

Markus Priske

Dagmara Ortmann

Stephan Peitz

Markus Winterberg

Helene Reeker

Bernhard Scholz

Alexander Brächer

Wilfried Büschken

Goetz Baumgarten

Marc Becker

Uwe Ernst

Guido Protzmann

Markus Schwarz

Harald Häger

Bernd Hannebauer

Oliver Moeller

Armin B&ouml;rner

Reiko Jennerjahn

Dirk R&ouml;ttger

Reinhard Schmutzler

Christine Kunze

Galina Morales Torres

Michael Graβ

Markus Rudek

Lothar Fischer

Gerhard Ludwig

Oliver Möller

Ion Neda

Georg Nordhoff

Sebastian Haumann

Samet Gülak

Xiangjie Fang

Daniela Cozzula

Ivana Fleischer

Xianjie Fang

Dieter Vogt

Ralph Jackstell

Laura Bini

Michele Janssen

Christian Reuter

Marcus Uhlemann

Helfreid Neumann

Lipeng Wu

Irina Profir

Burkhard Kreidler

Michèle Janssen

Oliver MÖLLER

Armin Prof Börner

Alfred Kaizig

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

The invention relates to a process comprising the following process steps: where

Process for the alkoxycarbonylation of alcohols

Process comprising the following process steps:

Process for the alkoxycarbonylation of olefins in a medium having a low Br&#xf8;nsted acid concentration

The invention relates to a process comprising the following process steps: whereRis selected from &#x2014;(C-C)-alkyl, &#x2014;O&#x2014;(C-C)-alkyl, &#x2014;O&#x2014;(C-C)-aryl, &#x2014;(C-C)-aryl, &#x2014;(C-C)-cycloalkyl, &#x2014;(C-C)-heterocycloalkyl, &#x2014;(C-C)-heteroaryl;Ris selected from &#x2014;(C-C)-aryl, &#x2014;(C-C)-cycloalkyl, &#x2014;(C-C)-heterocycloalkyl, &#x2014;(C-C)-heteroaryl;Ris &#x2014;(C-C)-heteroaryl;and R, Rand Rmay each independently be substituted by one or more substituents selected from&#x2014;(C-C)-alkyl, &#x2014;(C-C)-cycloalkyl, &#x2014;(C-C)-heterocycloalkyl, &#x2014;O&#x2014;(C-C)-alkyl, &#x2014;O&#x2014;(C-C)-alkyl-(C-C)-aryl, &#x2014;O&#x2014;(C-C)-cycloalkyl, &#x2014;S&#x2014;(C-C)-alkyl, &#x2014;S&#x2014;(C-C)-cycloalkyl, &#x2014;COO&#x2014;(C-C)-alkyl, &#x2014;COO&#x2014;(C-C)-cycloalkyl, &#x2014;CONH&#x2014;(C-C)-alkyl, &#x2014;CONH&#x2014;(C-C)-cycloalkyl, &#x2014;CO&#x2014;(C-C)-alkyl, &#x2014;CO&#x2014;(C-C)-cycloalkyl, &#x2014;N&#x2014;[(C-C)-alkyl], &#x2014;(C-C)-aryl, &#x2014;(C-C)-aryl-(C-C)-alkyl, &#x2014;(C-C)-aryl-O&#x2014;(C-C)-alkyl, &#x2014;(C-C)-heteroaryl, &#x2014;(C-C)-heteroaryl-(C-C)-alkyl, &#x2014;(C-C)-heteroaryl-O&#x2014;(C-C)-alkyl, &#x2014;COOH, &#x2014;OH, &#x2014;SOH, &#x2014;NH, halogen.

Process for the alkoxycarbonylation of ethylenically unsaturated compounds with monophosphine ligands

The invention relates to bisphosphites having 2,4-tert-butylphenyl units and a method for the preparation thereof. Furthermore, the invention relates to the use of the compounds as ligands in a ligand-metal complex. The compound, and also the complex, may be used as a catalytically active composition in hydroformylation reactions.

Bisphosphites having 2,4-tert-butylphenyl units and use thereof as ligands in hydroformylation

Process for the alkoxycarbonylation of ethers

The invention relates to compounds of formula (I)  The invention further relates to Pd complexes comprising the compound according to the invention and to the use thereof in alkoxycarbonylation.

Monophosphine compounds and palladium catalysts based thereon for the alkoxycarbonylation of ethylenically unsaturated compounds

Compound of formula (I) where The invention also relates to Pd complexes of the compound according to the invention, and to the use thereof in an alkoxycarbonylation process.

1, 1' -bis(phosphino)ferrocene ligands for alkoxycarbonylation

The invention relates to a compound of formula (I) where  The invention further relates to precursors for preparation of the compound according to the invention, to Pd complexes comprising the compound according to the invention and to the use thereof in alkoxycarbonylation.

Ferrocene-based compounds and palladium catalysts based thereon for the alkoxycarbonylation of ethylenically unsaturated compounds

A catalytic method for hydroformylating a cyclooctadiene substrate involving forming a reaction mixture that includes the cyclooctadiene and a precursor of or a transitional metal ligand complex where the ligand has structure (1): Hand CO are fed into the reaction mixture and the mixture is heated to convert the cyclooctadiene into an aldehyde. A preferred ligand is 2-(anthracen-9-yloxy)-4,4,5,5-tetramethyl-1,3,2-dioxaphospholane.

Method for hydroformylating cyclooctadiene using 2-(anthracen-9-yloxy)-4,4,5,5-tetramethyl-1,3,2-dioxaphospholane

A catalytic method for hydroformylating cyclooctadiene substrate involving forming a reaction mixture that includes the cyclooctadiene and a precursor of or a transitional metal ligand complex where the ligand has structure (1): (1) Hand CO are fed into the reaction mixture and the mixture is heated to convert the cyclooctadiene into an aldehyde. A preferred ligand is 4-([1,1':3&#x2032;,1&#x2033;-terphenyl]-2&#x2032;-yloxy)-S-dinaphtho[2,1-d:1&#x2032;,2&#x2032;-f][1,3,2]dioxaphosphepine.

Method for hydroformylating cyclooctadiene using 4-([1,1':3&#x2032;,1&#x2033;-terphenyl]-2&#x2032;-yloxy)-S-dinaphtho[2,1-D:1&#x2032;,2&#x2032;-F][1,3,2]dioxaphosphepine

The invention relates to a process comprising the process steps of: 

Process for the preparation of esters by means of carbonylation of ethers

The invention relates to a compound of formula (I)  The invention further relates to precursors for preparation of the compound according to the invention, to Pd complexes comprising the compound according to the invention and to the use thereof in alkoxycarbonylation.

The invention relates to a method for producing alcohols by homogeneously catalyzed hydroformylation of olefins to aldehydes and subsequent hydration of the aldehydes. The invention further relates to a system for carrying out the method. The main focus is on the separation technique for work-up of the hydroformylation mixture. The problem addressed by the invention is that specifying a work-up method for hydroformylation mixtures that utilizes the specific advantages of known separation technologies but at the same time largely avoids the specific disadvantages of said separation technologies. The most important objective is to create a catalyst separation system that is as complete and at the same time conservative as possible and that operates in a technically reliable manner and entails low investment and operating costs. The method should be unrestrictedly suitable for processing the reaction output from oxo systems in 'world scale' format. The problem is solved by combining membrane separation units and a thermal separation unit, the thermal separation unit being operated in such a manner that 80% to 98% of the mass introduced with the product stream into the thermal separation unit exits the thermal separation unit again as a head product.

Optimized separation technique for work-up of homogeneously catalysed hydroformylation mixtures

The invention relates to a method for preparing di- or tricarboxylic esters by alkoxycarbonylation of dienes having conjugated double bonds. The method includes the steps of initially charging a diene having two conjugated double bonds, adding a phosphine ligand according to formula (I) and a catalyst precursor, adding an alcohol, feeding in CO, and heating the reaction mixture with conversion of the diene to a di- or tricarboxylic ester. 

Method for preparing di- or tricarboxylic esters by alkoxycarbonylation of dienes having conjugated double bonds

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Marl, Germany

Dieter Hess