Basf Aktiengesellschaft

Basf Se Corporation

Basf Akteingesellschaft

Basf Aktiengellsellschaft

The Dow Chemical Company

Till Gerlach

Johann-Peter Melder

Joaquim Henrique Teles

Ekkehard Schwab

Bram Willem Hoffer

Signe Unverricht

Klaus Ebel

Frank Haese

Michael Hesse

Frank Ohlbach

Joachim Pfeffinger

Jochem Henkelmann

Ulrich Müller

Gerd Kaibel

Peter Bassler

Arthur H&ouml;hn

Konrad Knoll

Peter Rudolf

Frank Funke

Holger Evers

Petr Kubanek

Anton Meier

Philippe Desbois

Markus Schubert

Hartwig Voss

Thomas Krug

Michael Henningsen

Matthias Frauenkron

Hans-Georg Goebbel

Michael Ishaque

Meinolf Weidenbach

Andreas Brodhagen

Christoph Benisch

Markus Siegert

Anna Forlin

Hartwig Fuchs

Mathias Haake

Frank Poplow

Martin Rudloff

Christian Miller

Markus Hoelzle

Gunther Van Cauwenberge

Georg Krug

Hans-Georg Göbbel

Friederike Osswald

Michael Hüllmann

Michael H&uuml;llmann

Kirsten Burkart

Stefan Käshammer

Stefan Iselborn

Roderich Röttger

Jan Nouwen

Kirsten Wenz

Lisa Lobree

Hans-Michael Walter

Christian Kuhrs

Reinhard Körner

Cathrin Alexandra Welker-Nieuwoudt

Ellen Dahlhoff

Malte Schulz

Frederik Van Laar

Juergen Stephan

Frank Kiesslich

Axel Salden

Arnd Bottcher

Hans-Georg G&ouml;bbel

Guenter Wegner

Lothar Rüb

Andreas Kusche

Heinz Rütter

Karl Heinz Brauch

Volker Boehm

Verena Weiskopf

Günter Wegner

Volker Bendig

Hartwig Voß

Marcus Suess

Hans-Georg GÖBBEL

The present invention relates to a method of conditioning suspended catalysts, wherein at least part of the catalyst-comprising reaction medium is taken from one or more reactors and the suspended, at least partially inactivated catalysts are separated off and purified by means of at least one membrane filtration, with at least one of the membrane filtrations being carried out as a diafiltration.

Method for conditioning catalysts by means of membrane filtration

A catalytically active composition comprising, prior to reduction with hydrogen: 10 to 75% by weight of an oxygen compound of zirconium, calculated as ZrO; 1 to 30% by weight of an oxygen compound of copper, calculated as CuO; 10 to 50% by weight of an oxygen compound of nickel, calculated as NiO; 10 to 50% by weight of an oxygen compound of cobalt, calculated as CoO; and 0.1 to 10% by weight of one or more oxygen compounds of one or more metals selected from the group consisting of Pb, Bi, Sn, Sb and In, calculated as PbO, BiO, SnO, SbOor InO, respectively.

Processes for preparing amines and zirconium dioxide- and nickel-containing catalysts for use therein

A process for preparing 1,2-diamino-3-methylcyclohexane and/or 1,2-diamino-4-methylcyclohexane by reacting 2,3- and/or 3,4-diaminotoluene with hydrogen at elevated pressure and elevated temperature in the presence of a heterogeneous rhodium catalyst, wherein a mixture comprising 2,3- and/or 3,4-diaminotoluene, a dialkyl ether and/or alicyclic ether as a solvent and ammonia is initially charged in an autoclave in the presence of the catalyst and subsequently hydrogenated while supplying hydrogen.

Method for producing 1,2-diamino-3-methylcyclohexane and/or 1,2-diamino-4-methylcyclohexane

Processes comprising: (i) providing a reactant selected from the group consisting of primary alcohols, secondary alcohols, aldehydes, ketones and mixtures thereof; and (ii) reacting the reactant with hydrogen and a nitrogen compound selected from the group consisting of ammonia, primary amines, secondary amines and mixtures thereof, in the presence of a catalyst comprising a zirconium dioxide- and nickel-containing catalytically active composition, to form an amine; wherein the catalytically active composition, prior to reduction with hydrogen, comprises oxygen compounds of zirconium, copper, nickel and cobalt, and one or more oxygen compounds of one or more metals selected from the group consisting of Pb, Bi, Sn, Sb and In.

Process for preparing amines and zirconium dioxide- and nickel-containing catalysts for use therein

Processes comprising: (i) providing a reactant selected from the group consisting of primary alcohols, secondary alcohols, aldehydes, ketones and mixtures thereof; and (ii) reacting the reactant with hydrogen and a nitrogen compound selected from the group consisting of ammonia, primary amines, secondary amines and mixtures thereof, in the presence of a catalyst comprising a zirconium dioxide- and nickel-containing catalytically active composition, to form an amine; wherein the catalytically active composition, prior to reduction with hydrogen, comprises oxygen compounds of zirconium, copper, and nickel, and one or more oxygen compounds of one or more metals selected from the group consisting of Sb, Pb, Bi, and In.

Method for producing an amine

Processes comprising: (i) providing a reactant selected from the group consisting of primary alcohols, secondary alcohols, aldehydes, ketones and mixtures thereof; and (ii) reacting the reactant with hydrogen and a nitrogen compound selected from the group consisting of ammonia, primary amines, secondary amines and mixtures thereof, in the presence of a catalyst comprising a zirconium dioxide- and nickel-containing catalytically active composition, to form an amine; wherein the catalytically active composition, prior to reduction with hydrogen, comprises oxygen compounds of zirconium, copper, nickel and cobalt, and one or more oxygen compounds of molybdenum in an amount of 5.5 to 12% by weight, calculated as MoO.

Processes comprising: providing a starting material comprising monoethanolamine; and reacting the starting material with ammonia in the presence of a heterogeneous transition metal catalyst to form a reaction product comprising one or more ethylene amines; wherein the catalyst comprises a catalytically active composition, which prior to treatment with hydrogen, comprises a mixture of oxygen-containing compounds of aluminum, copper, nickel and cobalt; and wherein the catalyst is present as one or more shaped catalyst particles selected from spheres, extrudates, pellets and other geometries, wherein the sphere or extrudate has a diameter of &#x3c;3 mm, the pellet has a height of &#x3c;3 mm, and the other geometries have an equivalent diameter L=1/a' of &#x3c;0.70 mm, where a&#x2032; is the external surface area per unit volume (mm/mm), as defined by where Ais the external surface area of the catalyst particle (mm) and Vis the volume of the catalyst particle (mm).

Process for producing ethyleneamines

Processes comprising: (a) providing a first reactant comprising a bioethanol; and (b) reacting the first reactant with a second reactant comprising a component selected from the group consisting of ammonia, primary amines, secondary amines and mixtures thereof, in the presence of hydrogen and a catalytically effective amount of a heterogeneous hydrogenation/dehydrogenation catalyst to form an ethylamine; wherein the catalyst has been activated at a temperature of 100 to 500&#xb0; C. for at least 25 minutes; wherein prior to activation the catalyst comprises: (i) 20 to 65% by weight of a support material comprising one or both of zirconium dioxide (ZrO) and aluminum oxide (AlO), (ii) 1 to 30% by weight of oxygen-comprising compounds of copper, calculated as CuO, and (iii) 21 to 70% by weight of oxygen-comprising compounds of nickel, calculated as NiO; and wherein after activation the catalyst has a CO uptake capacity of &#x3e;110 &#x3bc;mol of CO/g of the catalyst.

Processes for preparing ethylamines

Processes comprising: providing a starting material comprising ethylenediamine; and reacting the starting material in the presence of a heterogeneous transition metal catalyst to form one or more ethylene amines; wherein the catalyst comprises a catalytically active composition, which prior to treatment with hydrogen, comprises a mixture of oxygen-containing compounds of aluminum, copper, nickel and cobalt; and wherein the catalyst is present as one or more shaped catalyst particles selected from spheres, extrudates, pellets and other geometries, wherein the sphere or extrudate has a diameter of &#x3c;3 mm, the pellet has a height of &#x3c;3 mm, and the other geometries have an equivalent diameter L=1/a' of &#x3c;0.70 mm, where a&#x2032; is the external surface area per unit volume (mm/mm), as defined by where Ais the external surface area of the catalyst particle (mm) and Vis the volume of the catalyst particle (mm).

Method for producing ethylene amines

Process for preparing an ethylamine by reacting ethanol with ammonia, a primary amine or a secondary amine in the presence of hydrogen and a heterogeneous catalyst, in which a biochemically prepared ethanol (bioethanol) in which the concentration of sulfur and/or sulfur-containing compounds has been reduced beforehand by bringing it into contact with an adsorbent is used.

Method for producing an ethylamine

The invention relates to a catalytically active composition for the selective methanation of carbon monoxide which comprises at least one element selected from the group consisting of ruthenium, rhodium, nickel and cobalt as active component and a support material based on carbon. The invention further provides for the use of this catalytically active composition for the selective methanation of carbon monoxide and in the production of hydrogen for fuel cell applications.

Catalytically active composition for the selective methanation of carbon monoxide and method for producing said composition

Process for the preparation of ethylenamines, in particular diethylenetriamine (DETA), by continuous reaction of ethylenediamine (EDA) in the presence of a heterogeneous catalyst, where the reaction is carried out in a reaction column.

Method for producing ethylene-amines

A process for hydrogenating nitrile functions present in organic compounds over at least one heterogeneous catalyst, in which the hydrogenation is carried out in the presence of an ionic liquid, is described.

Nitrile hydrogenation on heterogeneous catalysts in the presence of ionic liquids

Process for preparing a compound having a nonaromatic C&#x2014;C double or triple bond (compound A) from another compound or a mixture of other compounds having a nonaromatic C&#x2014;C double or triple bond (compound B), which comprises bringing the compound (B) into contact with a heterogeneous catalyst comprising carbides or oxycarbides of a transition element at from 50 to 500&#xb0; C.

Preparation of olefins by metathesis over a carbide or oxycarbide of a transition metal

Disclosed are catalysts, the catalytically active mass of which contains 22 to 40 percent by weight of oxygen-containing compounds of zirconium, calculated as ZrO, 1 to 30 percent by weight of oxygen-containing compounds of copper, calculated as CuO, 15 to 50 percent by weight of oxygen-containing compounds of nickel, calculated as NiO, the molar ratio between nickel and copper being greater than 1, 15 to 50 percent by weight of oxygen-containing compounds of cobalt, calculated as CoO, and less than 1 percent by weight of an alkali metal, calculated as alkali metal oxide, prior to being treated with hydrogen. Also disclosed is a method for the production of amines by reacting primary and secondary alcohols, aldehydes, or ketones with hydrogen and nitrogen compounds selected from the group ammonia, primary and secondary amines, in the presence of said catalysts at an elevated temperature and an elevated pressure.

Catalysts and method for the production of amines

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Ludwigshafen, Germany

Till Gerlach