Evonik Degussa Gmbh

Oxeno Olefinchemie Gmbh

Evonik Oxeno Gmbh

Evonik Operations Gmbh

Hermann-Josef Schulte-Althoff

Dirk Fridag

Alfred Kaizik

Robert Franke

Katrin Marie Dyballa

Klaus-Diether Wiese

Wilfried Bueschken

Frank Geilen

Hans-Gerd Lueken

Wilfried Büschken

Walter Toetsch

Udo Lenz

Markus Schwarz

Hans-Gerd Lüken

Frank Hoeper

Patrick Muhlack

Frank Höper

The production of 2-propylheptanol described here is effected via Rh-catalyzed hydroformylation of C-olefin to afford C-aldehyde, aldol condensation to afford the C-aldehyde and hydrogenation to afford the C-alcohol. The emphasis is on the hydroformylation and the ligand employed therein. The problem addressed by the invention is that of reducing the costs of 2PH production. This problem is solved when a cheaper catalyst system which simultaneously achieves a better regioselectivity is employed in the hydroformylation. This catalyst system contains rhodium as the central atom and is complexed with the ligand (1): 

Economical production of 2-propylheptanol

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.

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Process for preparing aldehydes and alcohols by rhodium-catalyzed hydroformylation of olefins having 6&#x2013;20 carbon atoms with subsequent separation by distillation of the output from the hydroformylation reaction into the hydroformylation products and a rhodium-containing solution and recirculation of this solution to the hydroformylation reaction, wherein the rhodium concentration of the recirculated rhodium-containing solution is 20&#x2013;150 ppm by mass.

Method for the rhodium-catalyzed hydroformylation of olefins with reduction of rhodium losses

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Haltern am See, Germany

Hermann-Josef Schulte-Althoff