Basf Aktiengesellschaft

Michael R&ouml;per

Rocco Paciello

Heiko Maas

Edgar Zeller

Bernhard Breit

Marc Walter

Ralf Schulz

Jakob Fischer

Thomas Mackewitz

Bernhard Geissler

Heinrich-Josef Blankertz

Hans-Ulrich J&auml;ger

J&uuml;rgen Tropsch

Wolfgang Siegel

Guido Voit

Hartwig Voss

Herwig Hoffmann

Peter Schwab

Michael Schulz

Heinz-Josef Kneuper

Harald Schwahn

Gerhard Schulz

Norbert Mahr

Michael Slany

Max Strohmeyer

Knut Oppenl&auml;nder

Friedrich Sauer

J&uuml;rgen Decker

Armin Volker Grenacher

Wolfgang G&uuml;nther

Martin Sch&auml;fer

Helmut Walz

Willi Sch&ouml;nmann

Helmut Zinke-Allmang

Bernhard Giessler

The invention relates to a process for the preparation of saturated C -C -alcohols in which a liquid hydrogenation feed comprising at least one C -C -aldehyde is passed over a bed of a hydrogenation catalyst in the presence of a hydrogen-containing gas, which comprises adding to the hydrogenation feed an amount, homogeneously soluble therein, of a salt-like base. The addition of base suppresses side reactions, such as acetalization, aldolization, Tischtschenko reaction or ether formation.

Method of producing saturated C3-C20-alcohols

Method for producing surfactant alcohols and surfactant alcohol ethers, the resulting products and their use

Preparation of dialkyl ketones

Process for the preparation of surfactant alcohols and surfactant alcohol ethers, the prepared products and their use

Phosphabenzene compounds and their use in hydroformylation

The invention relates to a catalyst which comprises at least one complex of a metal of group VIII, which comprises at least one uni-, bi- or multidentate phosphinite ligand in which the phosphorus atom and the oxygen atom of the phosphinite group are part of a 5- to 8-membered heterocycle, and to processes for hydroformylation and hydrocyanation of compounds which contain at least one ethylenic double bond in the presence of a catalyst of this type.

Catalyst comprising a complex of a metal of subgroup viii based on a phosphinite ligand, and a method for hydroformylation

Catalyst comprising a complex of a metal of subgroup VIII, on the basis of a phosphonite ligand and method for hydroformylation

Functionalized cyclopentene-derived oligomer mixtures, their preparation and their use

Hydroformylation process

The invention relates to a method for the production of aldehydes or aldehydes and alcohols by hydroformylation of olefins in the presence of a complexing catalyst homogeneously dissolved in a reaction mixture, containing a metal of Group VIIIa of the periodic table of the elements and a phosphorus-free, polydentate nitrogen compound suitable for complex formation as ligand at temperatures ranging from 50 to 100&deg; C. and pressures from 20 to 1,000 bar and recirculating the catalyst complex in the hydroformylation reaction, wherein a) derivatized polyamines are used that are substantially non-water soluble and suitable for complex formation and have a mean molecular weight of more than 1,000 Dalton and at least 10 nitrogen atoms; b) the catalyst complex remaining in the bottom of the distillation column and the excess ligands obtained from the reaction mixture are recirculated totally or partially in the hydroformylation once the hydroformylation reaction and the separation or partial separation by distillation of the aldehydes and the alcohols has been completed; c) continues or at least batchwise evacuation of at least part of the high boiler from the bottom of the distillation of the reaction mixture is then carried out.

Method for the production of aldehydes

A process for the preparation of phosphabenzene compounds of the formulae I and II

Method for producing phosphabenzene compounds

Phosphabenzene compounds of the formulae I and II

Preparation of phosphabenzene compounds

A process for the preparation of aldehydes or aldehydes and alcohols by hydroformylation of olefins containing more than 3 carbon atoms, comprising a hydroformylation stage, in which the olefin is hydroformylated under a pressure of form 50 to 1000 bar and at a temperature of from 50&deg; to 180&deg; C. by means of a rhodium catalyst dissolved in a homogenous reaction medium and a catalyst recovery stage comprising extraction of the rhodium catalyst with an aqueous solution of chelating agent, isolation of alcohols and/or aldehyde from the extracted hydroformylation product steam, precarbonylation of the aqueous rhodium-containing extract in the presence of carbon monoxide, synthesis gas as, or a gas mixture containing carbon monoxide under a pressure of from 50 to 1000 bar and at a temperature of from 50&deg; to 180&deg; C., separation of the effluent of the precarbonylation stage into an organic phase containing the major portion of the rhodium and an aqueous phase containing the chelating agent and recycling of the organic phase to the hydroformylation stage, where the rhodium catalyst is extracted from the effluent of the hydroformylation stage using an aqueous solution of a sulfonic acid group-free, water-soluble polymer capable of chelating rhodium.

Method of preparing aldehydes by hydroformylation with a rhodium catalyst and recovery of the rhodium catalyst by extraction

Growing community of inventors

Wachenheim, Germany

Michael Röper

Growing community of inventors

Wachenheim, Germany

Michael R&ouml;per

Michael Röper