Basf Aktiengesellschaft

Badische Anilin- & Soda-fabrik Aktiengesellschaft

Nucellsys Gmbh

Michael Jolyon Sprague

Heinz Engelbach

Klaus Harth

Markus Hölzle

Otto Kumberger

Rolf Pinkos

Michael Hesse

Stefan Boneberg

Martin Schüssler

Martin Karl

Wolfgang Hoelderich

Boris Breitscheidel

Rolf-Hartmuth Fischer

Leopold Hupfer

Alexander Weck

Holger Borchert

Marc Walter

Matthias Irgang

Wolf D Mross

Manfred Stroezel

Stephan Schlitter

Frank Stein

Ralf-Thomas Rahn

Shelue Liang

Joachim Wulff-Döring

Otto Hofstadt

Fritz Graf

Hans Christoph Horn

Christopher William Rieker

Hermann Wistuba

Sylvia Huber

Karl Sommer

Peter Palm

Herbert Wanjek

Norbert Neth

Herbert Armbrust

Harald Schultheiss

Wolfgang J&uuml;rgen P&ouml;pel

Claus Witte

Wolfgang Jürgen Pöpel

Markus R&ouml;sch

Hans-Juergen Sturm

Harry Hoffmann

Marco Millies

A methanol reforming catalyst containing passivated copper and zinc oxide and/or alumina can be prepared by A reduction in the volume shrinkage and an increase in the mechanical hardness during operation of the methanol reforming catalyst are achieved by the preparation process.

Methanol reforming catalyst having a reduced volume shrinkage

A process for the hydrogenation of an organic compound containing at least one carbonyl group comprises bringing the organic compound in the presence of hydrogen into contact with a shaped body which can be produced by a process in which

Catalyst and method for hydrogenating carbonyl compounds

Catalysts containing passivated copper and zinc oxide and/or alumina are prepared by

Preparation of catalysts having low volume shrinkage

Unsubstituted or alkyl-substituted THF is obtained by catalytic hydrogenation in the gas phase of C -dicarboxylic acids and/or their derivatives using a catalyst comprising <80% by weight, preferably <70% by weight, in particular from 10 to 65% by weight, of CuO and >20% by weight, preferably >30% by weight, in particular from 35 to 90% by weight, of an oxidic support having acid centers, at a hot spot temperature of from 240 to 310&deg; C., preferably from 240 to 280&deg; C., and a WHSV over the catalyst of from 0.01 to 1.0, preferably from 0.02 to 1, in particular from 0.05 to 0.5, kg of starting material/l of catalyst x hour.

Method for the production of tetrahydrofuran

Production of solids by precipitation

In a process for steam-reforming methanol, in which methanol and water are reacted at a catalyst with formation of hydrogen, the catalyst used can be prepared by

Catalyst for steam-reforming methanol

Copper-containing catalysts for low temperature shift conversion at from 150.degree. to 300.degree. C. and under from 10 to 40 bar, which additionally contain aluminum and zinc, if necessary in the form of the compounds or oxides and are prepared by coprecipitation, the copper-containing catalysts containing potassium and having a BET surface area adapted to the potassium content, and the potassium content being brought to 0.1-3.0% by weight at a BET surface of from 30 to 160 m.sup.2 /g, are used for the preparation of hydrogen and carbon dioxide from carbon monoxide and water.

Copper-containing catalyst for low temperature shift conversion

A process for the preparation of carbonyl compounds by oxidation of alcohols in the gas phase with a gas containing oxygen in the presence of catalysts containing copper or silver and a phosphorus compound that is volatile under the conditions of the reaction, the ratio of the mass of phosphorus to the mass of the alcohol being less than 0.5 ppm.

Preparation of carbonyl compounds

A process for the preparation of glyoxal by vapor phase oxidation of ethylene glycol with oxygen over a copper-containing oxidation catalyst at an elevated temperature and in the presence of a phosphorus compound which is volatile under the reaction conditions, the amount of phosphorus (calculated as P) being from 1 to 100 ppm, based on the weight of ethylene glycol.

Preparation of glyoxal from ethylene glycol

Novel coated catalysts and a process for their preparation by atomizing a mixture of water and a vanadium-V compound, with or without other metal compounds, and applying this mixture to carrier particles which are themselves in motion, drying the coating and subjecting the catalyst particles, which are themselves in motion, to repeated brief treatment with a flame or plasma, followed by rapid cooling, defined temperatures and rates of coating being employed. The catalysts may be used with advantage for the preparation of anthraquinones by oxidation of indans.

Coated catalysts and their preparation

The invention relates to a process for the production of anthraquinone by catalytic oxidation of indans or diphenylmethane derivatives with oxygen in the presence of a vanadium (V) compound with or without one or more than one compund of potassium, boron, thallium, antimony and/or caesium. Anthraquinone which can be prepared by the process according to this invention is a valuable starting material for the production of dyes and pesticides.

Production of anthraquinone

Anthraquinone is produced by oxidation of diphenylmethane compounds in the gaseous phase in the presence of oxygen-containing compounds of vanadium and titanium and at least one other metal in a specific ratio by weight. Anthraquinone prepared by the process of the invention is a starting material for the production of dyes and pesticides.

Growing community of inventors

Mannheim, Germany

Michael Jolyon Sprague