Basf Aktiengesellschaft

Basf Se Corporation

Dominic Vanoppen

Ekkehard Schwab

Ulrich Penzel

Jan-Dirk Arndt

Hartwig Voss

Steffen Oehlenschlaeger

Melanie Maas-Brunner

Ulrich Kammel

Konrad Morgenschweis

Bernd Weidner

Dietrich Tittelbach-Helmrich

Jochem Henkelmann

Konrad Knoll

Peter Zehner

Jean-Marie Basset

Michael Schulz

Wolfgang Mackenroth

Michael Veith

Hans Volkmar Schwarz

Georg Krug

Jean Thivolle-Cazat

Eckhard Str&ouml;fer

Arnd Böttcher

Gunter Georgi

Ralf B&ouml;hling

Michael Sander

Thomas Beuermann

Arthur Höhn

Markus Maurer

Dieter St&uuml;tzer

J&ouml;rn M&uuml;ller

Frederik Van Laar

Joern Mueller

Juergen Dahlhaus

Mostapha Taoufik

Frederick Van Laar

Kroum Valtchev

Novel ruthenium catalysts can be obtained by:

Ruthenium catalysts

The invention relates to a process for preparing aromatic amines by hydrogenation of nitroaromatics in the presence of catalysts, in which a fluid reaction mixture which comprises amines and from which the catalysts are separated off is formed in a reactor. After the catalysts have been separated off, a measurement of the absorption of UV/VIS radiation by the reaction mixture is carried out to determine the concentration of nitro and nitroso compounds in the reaction mixture.

Method for producing aromatic amines or aliphatic amino alcohols

A catalyst comprising nickel on a TiOsupport is obtainable by coprecipitation of It is used, in particular, for the hydrogenation of nitroaromatic compounds.

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In a process for hydrogenating at least one organic compound, the organic compound or compounds is/are brought into contact with a hydrogen-containing gas in the presence of a catalyst which comprises, as active metal, ruthenium either alone or together with at least one further metal of transition group I, VII or VIII of the Periodic Table applied to a support material based on amorphons silicon dioxide and is obtainable by:

The invention relates to a method for producing hydrocarbons having a modified carbon skeleton by reacting aliphatic hydrocarbons a) with themselves, b) with another aliphatic hydrocarbon or c) with aromatic alkyl substituted hydrocarbons, in the presence of a metal organic catalyst or the hybrid thereof, at a temperature of between 20&#x2013;400&#xb0; C. and a pressure of between 0.2&#x2013;100 bars, wherein the reaction takes place in the presence of hydrogen.

Method for producing hydrocarbons having a modified carbon skeleton

The invention provides a process for preparing amines by catalytic hydrogenation of nitroaromatics and subsequent removal of the catalysts from the reaction mixture, which contains at least one aromatic amine and water, which comprises carrying out the removal of the catalysts by means of membrane filtration, which is carried out at a pressure on the suspension side of from 5 to 50 bar, a pressure difference between the suspension side and the permeate side of at least 0.3 bar and a flux rate on the suspension side of from 1 to 6 m/s.

Method for the production of amines

The catalyst can be prepared by reduction of a precursor of a hydrogenation-active metal, which may be present on an oxidic support, by reaction with at least one compound of the formula (I)HM(OR)&#x2003;&#x2003;(I)where

Metallic hydrogenation catalysts, production and use thereof

A process is described for preparing sorbitol by catalytic hydrogenation of a monosaccharide forming sorbitol on hydrogenation in the liquid phase, which comprises the catalyst being obtainable by:

Method for the production of sorbit

The invention relates to a process for the preparation of amines by hydrogenation of nitro compounds, which comprises carrying out the hydrogenation in a vertical reactor whose length is greater than its diameter, having a downward-facing jet nozzle arranged in the upper region of the reactor through which the starting materials and the reaction mixture are fed in, and having an outlet at any desired point of the reactor, through which the reaction mixture is fed back to the jet nozzle in an external circuit by means of a conveying means, and having flow reversal in the lower region of the reactor.

Method for producing amines

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Kapellen, Belgium

Dominic Vanoppen