Basf Se Corporation

Basf Aktiengesellschaft

Kirsten Dahmen

Johann-Peter Melder

Randolf Hugo

Alfred Oftring

Katrin Baumann

Thilo Hahn

Alexander Panchenko

Christian Mueller

Ansgar Gereon Altenhoff

Martin Bock

Andreas Kunst

Sabine Huber

Christoph Mueller

Bernd Bastian Schaack

Joaquim Henrique Teles

Klemens Massonne

Martin Ernst

Oliver Molt

Thomas Schmidt

Michael Henningsen

Mathias Schelwies

Michael Limbach

Stephanie Jaegli

Gunther Van Cauwenberge

Rene Backes

Benoit Blank

Steffen Oehlenschlaeger

Kai Michael Exner

Monika Charrak

Andreas Weickgenannt

Marion Kristina Brinks

Barbara Wucher

Markus Piepenbrink

Achim Kaffee

Thomas Reissner

Frank Hettche

Christian Krausche

Beatrice Rössler-Feigel

Aik Meam Tan

Beatrice Rößler-Feigel

The present invention relates to a method for hydrogenating aromatic compounds with hydrogen in the presence of a catalyst, in which the catalyst comprises ruthenium on a zirconium oxide support material, and also the use of a catalyst comprising ruthenium on a zirconium oxide support material for hydrogenating aromatic compounds.

Method for hydrogenating aromatic compounds

The present invention relates to a process for hydrogenating 4,4'-methylenedianiline and/or polymeric MDA with hydrogen in the presence of a catalyst comprising ruthenium on a zirconium oxide support material, and also to the use of a catalyst comprising ruthenium on a zirconium oxide support material for hydrogenating 4,4&#x2032;-methylenedianiline and/or polymeric MDA.

Process for hydrogenating 4,4'-methylenedianiline

The present invention relates to 2,6-bis(aminomethyl)piperidine derivatives as such (in the following text abbreviated to '2,6-BAMP derivatives') which are defined by the general formula (I) shown in the following text. In addition, the present invention relates to a process for preparing such 2,6-BAMP derivatives by hydrogenation of the corresponding 2,6-dicyanopiperidine derivatives (hereinafter abbreviated to '2,6-DCP derivatives') in the presence of a catalyst. The present invention further provides for the use of the 2,6-BAMP derivatives of the invention as hardeners for epoxy resins, as intermediate in the preparation of diisocyanates, which play an important role in the production of polyurethanes, as starters in the preparation of polyetherols and/or as monomers for polyamide production. The present invention further relates to the diisocyanates as such prepared from the 2,6-BAMP derivatives and also the corresponding preparative process.

2,6-bis-(aminomethyl)piperidine derivatives

The present invention relates to the use of substantially linear polypropyleneimine as a hardener for epoxy resins, and also to a corresponding curable composition, to the curing thereof, and to the cured epoxy resin obtainable therefrom.

Use of polypropyleneimine as curing agent for epoxide resins

The present invention relates to polyamines and to a process for preparing polyamines.

Polyamines and process for preparation thereof

The present invention relates to a process for preparing a cyclic diamine, comprising the reaction of at least one cyclic alkene with a gas mixture (G) comprising dinitrogen the subsequent conversion of monoxide to give at least one cyclic ketone and then converting the at least one cyclic ketone to a cyclic diamine. The invention also relates to the use of a cyclic diamine with primary and secondary amine functions thus obtained to prepare polyamides and polyurethanes.

Process for preparing cyclic diamines

The invention relates to a process for preparing tetraethylenepentamine (TEPA) by hydrogenation of diethylenetriaminediacetonitrile (DETDN) over a catalyst. If appropriate, DETDN can also be present as a constituent of an amino nitrile mixture which additionally comprises diethylenetriaminemonoacetonitrile (DETMN).

Method for producing tetraethylenepentamine

The invention relates to a process for preparing triethylenetetramine (TETA), which, comprises the following steps:

Method for producing TETA by means of EDDN

The invention relates to a process for preparing an amino nitrile mixture comprising aminoacetonitrile (AAN) and from 5 to 70% by weight of iminodiacetonitrile (IDAN), which comprises heating crude AAN which is largely free of formaldehyde cyanohydrin (FACH-free) at a temperature of from 50 to 150&#xb0; C.

Method for producing aminonitriles

A process comprising: continuously distilling a crude xylylenediamine in a column to form a pure xylylenediamine and a bottom product, wherein the column comprises a distillation column having a side draw and the distillation column is operated under a reduced pressure and a bottom temperature of 185&#xb0; C. or less; drawing off the pure xylylenediamine from the side draw; evaporatively concentrating the bottom product of the distillation column in an additional evaporation stage to form a condensate; and returning the condensate into the distillation column.

Processes for preparing pure xylylenediamine

The invention relates to a process for preparing an ethylene amine mixture, which comprises the following steps: Ethylenediamine (EDA) and/or diethylenetriamine (DETA) and also, if appropriate, further ethylene amines can be isolated from the ethylene amine mixtures obtained.

Method for producing ethyleneamines from untreated AAN

The invention relates to a process for preparing triethylenetetramine (TETA), which comprises hydrogenating ethylenediaminediacetonitrile (EDDN) in the presence of a catalyst and a solvent.

Method for producing triethylenetetramine

The invention relates to a process for preparing ethylenediamine by hydrogenation of aminoacetonitrile over a catalyst, wherein the hydrogenation is carried out in a solution comprising aminoacetonitrile, water in a proportion of from 0 to 60% by weight and a solvent and the aminoacetonitrile comprised in the solution is fed into the reaction vessel at a rate which is not greater than the rate at which the aminoacetonitrile reacts with hydrogen in the hydrogenation.

Method for producing ethylenediamine

The invention relates to a process for preparing an ethylene amine mixture, which comprises hydrogenating an amino nitrile mixture comprising at least 30% by weight of aminoacetonitrile (AAN) and at least 5% by weight of iminodiacetonitrile (IDAN) in the presence of a catalyst. Ethylenediamine (EDA) and/or diethylenetriamine (DETA) and, if appropriate, further ethylene amines can be isolated from the ethylene amine mixtures obtained.

Method for producing ethyleneamines

The invention relates to a process for preparing an ethylene amine mixture, which comprises hydrogenating an amino nitrile mixture comprising at least two &#x3b1;-amino nitriles in an amount of at least 5% by weight in each case in the presence of a catalyst and, if appropriate, a solvent.

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Freinsheim, Germany

Kirsten Dahmen