Evonik Oxeno Gmbh

Oxeno Olefinchemie Gmbh

Evonix Oxeno Gmbh

Evonik Oxenc Gmbh

Evonik Degussa Gmbh

Dagmara Ortmann

Klaus-Diether Wiese

Franz Nierlich

Cornelia Borgmann

Oliver Moeller

Dirk Fridag

Dieter Hess

Michael Grass

Wilfried Bueschken

Dirk Roettger

Walter Kaminsky

Reiner Bukohl

Stephan Houbrechts

Stefanie Derlin

Detlef Selent

Armin Boerner

Franz-Felix Kuppinger

Wilfried Büschken

Goetz Baumgarten

Dirk Röttger

Oliver MÖLLER

Process for separating a dissolved complex catalyst of a metal of group 4, 5, 6, 7, 8, 9 or 10 of the Periodic Table of the Elements and/or any free organophosphorus ligand present from a nonaqueous hydroformylation reaction mixture which contains an aldehyde product and an organic solvent at least one membrane which is more permeable to the hydroformylation product than to the organophosphorus ligand, the separation being carried out under a carbon monoxide partial vapor pressure of more than 200 kPa.

Method for separating organic transition metal complex catalysts

The present invention relates to a copolymer which contains 3-methylbut-1-ene as a comonomer and which contains ethene or propene as a further monomer, the proportion of the incorporated 3-methylbut-1-ene being 0.1 to 40 mol %, and to a process for preparing such copolymers, the polymerization being performed in the presence of a catalyst which comprises at least one cyclopentadienyl group.

Process for preparing polymers from 3-methylbut-1-ene

Process for telomerizing noncyclic olefins having at least two conjugated double bonds with at least one nucleophile using a catalyst containing a metal of group 8, 9 or 10 of the Periodic Table of the Elements, wherein the overall telomerization process has a process step of catalyst recycling, in which hydrogen is added via a hydrogen source to the mixture present in this process step.

Method for the telomerization of non-cyclic olefins

The present invention relates to a process for preparing organophosphites, organophosphonites and organophosphinites by condensing phosphorus trihalides or organophosphorus halides with organic compounds bearing hydroxyl groups in the presence of polymeric basic ion exchange resins. The process according to the invention makes possible in a simple manner the preparation of trivalent organophosphorus compounds which may be used, for example, as ligands in rhodium complexes which may be used as a catalyst in hydroformylation.

Method for producing trivalent organophosphorus compounds

Process for telomerizing noncyclic olefins having at least two conjugated double bonds with at least one nucleophile using a catalyst containing a metal of group 8, 9 or 10 of the Periodic Table of the Elements, wherein hydrogen is added via a hydrogen source to the process in at least one process step in the overall telomerization process.

The invention relates to a process for reaction of a carbonylatable compound using a metal complex catalyst comprising a metal of transition group VIII and an organophosphorus ligand and in the presence of a stabilizer based on a sterically hindered secondary amine.

Carbonylation method by adding secondary sterically hindered amines

(EN) The invention relates to the use of novel organophosphoric compounds and metal complexes thereof in catalytic reactions, and to the hydroformylation of olefins in the presence of these compounds.

Method for hydroformylating olefins in the presence of organophosphoric compounds

The present invention relates to a process for preparing organophosphites, organosphonites and organophosphinites by condensing phosphorus trihalides or organophosphorus halides with organic compounds bearing hydroxyl groups in the presence of polymeric basic ion exchange resins. The process according to the invention makes possible in a simple manner the preparation of trivalent organophosphorus compounds which may serve, for example, as ligands in rhodium complexes which may be used as a catalyst in hydroformylation.

Method for producing organoacylphosphites

Growing community of inventors

Brig, Switzerland

Dagmara Ortmann