Oxeno Olefinchemie Gmbh

Evonik Oxeno Gmbh

Evonik Oxenc Gmbh

Oliver Moeller

Klaus-Diether Wiese

Dagmara Ortmann

Dirk Fridag

Dieter Hess

Cornelia Borgmann

Wilfried Bueschken

Alfred Kaizik

Detlef Selent

Armin Boerner

Franz-Felix Kuppinger

Goetz Baumgarten

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 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

The present invention relates to a process for preparing aldehydes by hydroformylation catalyzed by metals of groups 8 to 10 of the Periodic Table of the Elements in the presence of cyclic carbonic esters.

Method for producing aldehydes by means of hydroformylation of olefinically unsaturated compounds, said hydroformylation being catalyzed by unmodified metal complexes in the presence of cyclic carbonic acid esters

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Recklinghausen, Germany

Oliver Moeller