Basf Aktiengesellschaft

Badische Anilin- & Soda-fabrik Aktiengesellschaft

Hermann Wistuba

Thomas Fetzer

Bernhard Otto

Gert Buerger

Wolfgang Buechele

Guenter Herrmann

Volker Schumacher

Michael Hesse

Matthias Schwarzmann

Klaus Harth

Wilhelm Ruppel

Matthias Irgang

Dieter Baumann

Heinrich Aichinger

Matthias Rauls

Heinz Engelbach

Michael Baier

Michael Jolyon Sprague

Otto Hofstadt

Karl-Heinz Boehning

Klaus Herzog

Eckhart Wagner

Herbert Armbrust

Claus Witte

Gert B&uuml;rger

Paul Pijl

Emil Roth

Gert Burger

Hans-Juergen Sturm

A copper-containing catalyst of the composition of N O contains a compound of the formula M Al O , where M is Cu or a mixture of Cu and Zn and/or Mg and x is from 0.8 to 1.5. The novel catalyst is used in a process for the catalytic decomposition of pure N O or N O contained in gas mixtures, at elevated temperatures.

High-temperature stabile catalysts for decomposing N2O

Dicarboxylic acid crystals are prepared from a solution containing at least one organic dicarboxylic acid in a process in which at least one anionic polyelectrolyte having a molecular weight of at least 2000 is added to the solution before or during the crystallization.

Dicarboxylic acid crystallizates

Catalysts prepared by combining M--Al.sub.2 O.sub.4 where M is an element of Group Ib, VIIb or VIII of the Periodic Table of the Elements with tin, lead, an element of group IIa or IIb of the Periodic Table of the Elements as oxide or salt or in elemental form and calcining at 300-1300.degree. C. under 0.1-200 bar and the process for preparing them.

Catalyst with fine-particle dispersion of the active component

Method of removing nitrogen oxides from a gas flow

Catalytic decomposition of dinitrogen monoxide

Process for the catalytic decomposition of dinitrogen monoxide in a gas

A catalyst for decomposing dinitrogen monoxide which is pure or present in gas mixtures comprises metallic silver applied to an alumina carrier with a BET surface area of from 5 to 25 m.sup.2 /g.

Catalytic decomposition of dinitrogen monoxide which is pure or present

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

Growing community of inventors

Mannheim, Germany

Hermann Wistuba