Basf Aktiengesellschaft

Willi Sch&ouml;nmann

Armin Volker Grenacher

Harald Schwahn

Michael R&ouml;per

Friedrich Sauer

Heinrich-Josef Blankertz

Rolf M&uuml;ller

Gerhard Borchert

Hans Stepp

Hans-J&uuml;rgen Fr&ouml;hlich

Hans-Georg Hein

In a process for the fractional distillation of a liquid crude aldehyde mixture including straight-chain and branched aldehydes, the product mixture is fractionated in a first distillation column to give a product stream of branched aldehyde, a product stream of straight-chain aldehyde and a further product stream including straight-chain aldehyde and the high boiling constituents. The further product stream is then fractionated in a second distillation column whose packing volume is a factor of from 50 to 200 smaller than that of the first distillation column to give a product stream of straight-chain aldehyde and a high boiler product stream.

Method for separating a liquid crude aldehyde mixture by distillation

In a process for preparing aldehydes and/or alcohols having from 6 to 30 carbon atoms by hydroformylation of olefins by means of synthesis gas in the presence of a catalyst at from 120&deg; C. to 210&deg; C. and pressures of from 100 to 400 bar, a reaction mixture comprising olefins, synthesis gas and catalyst or catalyst precursor is, according to the present invention, introduced at high velocity into a high-pressure reactor via a nozzle having an adjustable flow cross section.

Preparation of aldehydes and/or alcohols having from 6 to 30 carbon atoms

Hydroformylation process

Growing community of inventors

Limburgerhof, Germany

Willi Schönmann

Growing community of inventors

Limburgerhof, Germany

Willi Sch&ouml;nmann

Willi Schönmann