Basf Se Corporation

Basf Aktiengesellschaft

Basfaktiengesellschaft

Bernd Stein

Johann-Peter Melder

Matthias Frauenkron

Christof Wilhelm Wigbers

Ortmund Lang

Thomas Krug

Marco Bosch

Frank Haese

Roman Dostalek

Bernd Rumpf

Roland Bou Chedid

Ulrich Abel

Thomas Manderbach

Thilo Hahn

Theodor Weber

Dirk Funhoff

Gunther Van Cauwenberge

Roderich Röttger

Harald Meiβner

Jürgen Moors

Tom Fremau

Ekkehard Schwab

Ulrich Müller

Norbert Rieber

Thomas Heidemann

Georg Heinrich Grosch

Martin Ernst

Gerd Haderlein

Steffen Maas

Stefan Rittinger

Wolfgang Reif

Ulrich M&uuml;ller

Frank-Friedrich Pape

Thomas Hill

Bram Willem Hoffer

Thorsten Johann

Jan Kurt Eberhardt

Shelue Liang

Jörg Pastre

Alfred Krause

Christoph Mueller

Michael Stang

Heinz Rutter

Karl-Heinz Roβ

Michael Jödecke

Arnd Bottcher

Norbert Gutfrucht

Joachim-Thierry Anders

Nina Challand

Harald Meissner

Werner Klockemann

Christoph Müller

Wolfgang Maegerlein

Erich Frauendorfer

Wolfgang MÄGERLEIN

Jan Eberhardt

Harald MEIßNER

The invention relates to a process for preparing primary amines, which comprises hydrogenating at least one nitrile in an apparatus (V1) in the presence of an unsupported cobalt catalyst to obtain at least one primary amine, with recurrent or continuous addition of at least one compound (I) to the apparatus (V1), said compound (I) comprising at least one component selected from alkali metal, alkaline earth metal and rare earth metal.

Process for preparing primary amines using an unsupported cobalt catalyst

Process for the continuous preparation of an amine by reaction of a primary or secondary alcohol, aldehyde and/or ketone with hydrogen and a nitrogen compound selected from the group consisting of ammonia, primary and secondary amines at a temperature in the range from 60 to 300&#xb0; C. in the presence of a catalyst comprising copper oxide and aluminum oxide, wherein the reaction takes place in the gas phase and the catalytically active composition of the catalyst before reduction with hydrogen comprises from 20 to 75% by weight of aluminum oxide (AlO), from 20 to 75% by weight of oxygen-comprising compounds of copper, calculated as CuO, from 0 to 2% by weight of oxygen-comprising compounds of sodium, calculated as NaO, and less than 5% by weight of oxygen-comprising compounds of nickel, calculated as NiO, and the shaped catalyst body has a pellet shape having a diameter in the range from 1 to 4 mm and a height in the range from 1 to 4 mm.

Method for the continuous production of an amine using an aluminum&#x2014;copper catalyst

The present application relates to a process for preparing secondary amines by aminating excess primary or secondary alcohols with primary amines in the liquid phase in the presence of copper-comprising catalysts.

Process for preparing secondary amines in the liquid phase

Process for preparing piperazine of the formula I by reacting diethanolamine (DEOA) of the formula II with ammonia in the presence of hydrogen and a supported, metal-containing catalyst has been found, wherein the catalytically active mass of the catalyst, prior to its reduction with hydrogen, comprises oxygen-containing compounds of aluminum, copper, nickel and cobalt and in the range from 0.2 to 5.0% by weight of oxygen-containing compounds of tin, calculated as SnO, and the reaction is carried out in the liquid phase at an absolute pressure in the range from 160 to 220 bar, a temperature in the range from 180 to 220&#xb0; C., using ammonia in a molar ratio to DEOA used of from 5 to 25 and in the presence of 0.2 to 9.0% by weight of hydrogen, based on the total amount of DEOA used and ammonia.

Process for preparing piperazine

A process for preparing a cyclic tertiary amine of the formula I  

Process for preparing a cyclic tertiary amine

Process for the preparation of a mono-N-alkylpiperazine of the formula I in which Ris C- to C-alkyl or 2-(2-hydroxyethoxy)ethyl,by reacting diethanolamine (DEOA) of the formula II with a primary amine of the formula HN&#x2014;R(III) in the presence of hydrogen and a catalyst molding, where the reaction is carried out in the liquid phase at an absolute pressure in the range from 150 to 250 bar and the amination is carried out by means of a catalyst molding, the precursor of which can be prepared according to a process in which

Process for the preparation of a mono-N-alkylpiperazine

Process for the preparation of a mono-N-alkylpiperazine of the formula I in which Ris C- to C-alkyl or 2-(2-hydroxyethoxy)ethyl,by reacting diethanolamine (DEOA) of the formula II with a primary amine of the formula HN&#x2014;R(III) in the presence of hydrogen and a supported, metal-containing catalyst, where the catalytically active mass of the catalyst, prior to its reduction with hydrogen, comprises oxygen-containing compounds of aluminum, copper, nickel and cobalt and, in the range from 0.2 to 5.0% by weight, oxygen-containing compounds of tin, calculated as SnO, and the reaction is carried out in the liquid phase at an absolute pressure in the range from 95 to 145 bar.

Process for the preparation of a mono-N-alkypiperazine

A process for preparing pure triethanolamine (TEOA) by continuously distillatively separating an ethanolamine mixture comprising TEOA and diethanolamine (DEOA), by distilling off DEOA in a distillation column (DEOA column) and supplying the resulting bottom stream comprising TEOA to a downstream column (TEOA column) in which the pure TEOA is withdrawn as a side draw stream, wherein the residence time of the ethanolamine mixture in the bottom of the DEOA column is &#x3c;20 minutes.

Process for preparing pure triethanolamine (TEOA)

Processes comprising: (a) reacting dimethylamine and ethylene oxide to form a product mixture comprising N,N-dimethylethanolamine and N,N-dimethylaminoethoxyethanol; (b) distilling the product mixture to obtain a bottom fraction comprising N,N-dimethylaminoethoxyethanol; and (c) distilling the bottom fraction to separate at least a portion of the N,N-dimethylaminoethoxyethanol from the bottom fraction; and apparatus for carrying out said processes.

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Process for preparing a cyclic tertiary methylamine of the formula I  

Process for preparing a cyclic tertiary methylamine

The present application relates to a process for preparing unsymmetric secondary tert-butylamines which, as well as the tert-butyl radical, also comprise an alkyl, cycloalkyl or benzyl radical. They are prepared by reacting corresponding aldehydes with tert-butylamine and hydrogen in the presence of hydrogenation catalysts (reductive amination) in the liquid phase.

Process for preparing unsymmetric secondary tert-butylamines in the liquid phase

A process for preparing an amine by reacting an aldehyde and/or ketone with hydrogen and a nitrogen compound selected from the group of primary and secondary amines in the presence of a heterogeneous catalyst, wherein the catalyst is a coated catalyst which comprises at least one metal of group VIII of the Periodic Table of the Elements as a hydrogenating metal and additionally a promoter on an oxidic support, at least 80% of the metal of group VIII of the Periodic Table of the Elements being present in a layer between the surface of the catalyst and a penetration depth which is not more than 80% of the radius of the catalyst, calculated from the surface of the catalyst.

Process for preparing an amine

In the continuous process for preparing alkylamines by reacting C-alkanols with ammonia in the gas phase in the presence of a shape-selective fixed-bed catalyst in a cooled reactor, the shape-selective fixed-bed catalyst is present in a single contiguous fixed bed in the reactor and tubes through which coolants are passed run within the fixed bed to regulate the temperature of the fixed bed.

Continuous methods and reacator used for the production of alkylamines

An increase in the cutting hardness of a shaped body comprising a crystalline aluminosilicate is achieved by treating the shaped body with a gas comprising water vapor at from 100 to 600&#xb0; C. and an absolute pressure of from 0.1 to 10 bar for a period of at least 20 hours, and this shaped body having an increased cutting hardness can be used in processes for chemical synthesis, in particular in a process for preparing triethylenediamine (TEDA) by reaction of ethylenediamine (EDA) and/or piperazine (PIP).

Method for preparing triethylenediamine (TEDA)

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Alsbach-Hähnlein, Germany

Bernd Stein