Basf Aktiengesellschaft

Basf Se Corporation

Christoph Benisch

Johann-Peter Melder

Andreas Ansmann

Hermann Luyken

Rolf-Hartmuth Fischer

Stefan Maixner

Frank Funke

Peter Bassler

Frank Ohlbach

Helmut Winterling

Peter Baβler

Martin Merger

Gad Kory

Jürgen Demeter

Jürgen Deininger

Kurt Krempel

Oliver Sötje

Peter Neumann

Klaus Ebel

Rocco Paciello

Ulrich Steinbrenner

Till Gerlach

Rainer Papp

Arthur H&ouml;hn

Joachim Pfeffinger

Axel Wilms

Ralf Böhling

Ralf Neuhaus

Oliver Löber

Thilo Hahn

Günter Gaus

Robert Weiβ

Günter Müller

Peter Basler

The iron-containing catalyst suitable for use as a catalyst contains a) iron or a mixture containing iron and an iron-based compound. The iron has an average crystallite size ranging from 1-35 nm measured by X-ray diffraction.

Iron-containing material suitable for use as hydrogenation catalyst

Polyamide, whose main chain contains a chemically bound amine selected from the group consisting of 2-methyl-1,5-diaminopentane and 1-amino-2-R-cyclopent-1-ene, where R is a functional group capable of combining with an amino group to form an amide group, and processes for preparing such a polyamide and fibers, films and moldings comprising such a polyamide.

Polyamides

The disclosure relates to a process for purifying crude caprolactam. The process involves converting a first mixture of 6-amino capronitrile and water to a second mixture of caprolactam ammonia, water, high boilers and low boilers using a catalyst. The ammonia is removed from the second mixture to obtain a third mixture. Water is removed from the third mixture to give crude caprolactam, high boiler and low boilers. Purified caprolactam is then obtained by a series of distillation steps.

Method for purifying caprolactam

A process for preparing a polyamide by reacting a mixture which comprises a monomer which has a nitrile group and has at least one other functional group capable of forming a carboxamide group, and comprises water, in the presence of titanium dioxide as catalyst, which comprises using titanium dioxide whose BET surface area, determined to the German standard DIN 66 131 volumetrically by the multipoint method, is in the range from 5 to 35 m/g.

Method for producing polyamides

Polyamide whose main chain contains a chemically bound N-alkyllactam, and processes for preparing such a polyamide and fibers, films and moldings comprising such a polyamide.

A process for reducing the level of an aliphatic monounsaturated amine (IV) in a mixture (V) containing an aminonitrile (I) or a diamine (II) or a dinitrile (III) or mixtures thereof as well as said mine (IV) by

Method for reducing the content of an unsaturated amine in a mixture containing an amino nitrile, a diamine, a dinitrile or mixtures thereof

Process for preparing tricyclodecanedialdehyde by hydroformylation of dicyclopentadiene by means of a CO/Hmixture at elevated temperature and under superatmospheric pressure in the presence of a rhodium catalyst which has not been modified by means of a ligand and is homogeneously dissolved in the hydroformylation medium, wherein the hydroformylation is carried out at a pressure of from 200 to 350 bar in at least two reaction zones, with a reaction temperature of from 80 to 120&#xb0; C. being set in a first reaction zone and a reaction temperature of from 120 to 150&#xb0; C. being set in a reaction zone following this reaction zone, with the proviso that the reaction temperature in the subsequent reaction zone is at least 5&#xb0; C. higher than in the preceding reaction zone.

Method for producing tricyclodecandialdehyde

The invention relates to a process for preparing 4-[aminoalkoxy]benzylamines of the general formula (I) by catalytically hydrogenating 4-[aminoalkoxy]benzonitriles of the general formula (II) where, in the compounds of the general formulae I and II, Ris C-C-alkylene, Rand Rare each independently C-C-alkyl or are joined to give a ring which may additionally contain a heteroatom, which comprises carrying out the hydrogenation at elevated pressure and elevated temperatures. The invention further relates to a process for preparing the intermediate (II).

Method for producing aminoalkoxy benzylamines and aminoalkoxy benzonitriles as intermediates

The present invention describes a process for the preparation of ethyldimethylamine and triethylamine with the following steps: The process according to the invention permits the coproduction of ethyldimethylamine and diethylamine in a simple process.

Method for producing ethyldimethylamine and triethylamine

A process for removing high boilers from crude caprolactam which comprises high boilers, caprolactam and in some cases low boilers, and which has been obtained by

Purification of caprolactam

An oxidic composition which is suitable as a catalyst having divalent and trivalent iron in an atomic ratio of divalent to trivalent iron in the range from greater than 0.5 to 5.5 and oxygen as a counterion to the divalent and trivalent iron. The catalyst composition is useful in the hydrogenation of nitriles to amines.

Iron-containing oxidic material suitable for use as hydrogenation catalyst precursor

Process for preparing a symmetrical secondary amine by reaction of a primary amine in the presence of hydrogen and a catalyst whose preparation has involved precipitation of catalytically active components onto monoclinic, tetragonal or cubic zirconium dioxide.

Preparation of a symmetrical secondary amine

Method for reducing the content of an unsaturated amine in a mixture containing an amine and a nitrile

The invention relates to a process for preparing primary amines by hydrogenating nitrites in the presence of a catalyst comprising cobalt and optionally, in addition, nickel and also at least one further doping metal on a particulate support material, the cobalt and, if present, the nickel having an average particle size of from 3 to 30 nm in the active catalyst. The invention further relates to the use of the catalyst in a process for preparing primary amines by hydrogenating nitrites.

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Mannheim, Germany

Christoph Benisch