Basf Aktiengesellschaft

Volker Schumacher

Thomas Fetzer

Michael Hesse

Michael Baier

Hermann Wistuba

Bernhard Otto

Gert B&uuml;rger

Klaus Harth

Wilhelm Ruppel

Otto Hofstadt

Peter Magnussen

Eckhart Wagner

Werner Praetorius

Walter Schicketanz

Gerhard Siebert

Heinrich Reitz

Wolfgang Gebert

Emil Roth

Gert Burger

A reactor for the catalytic oxidation of ammonia to form nitrogen oxides which has a noble metal gauze catalyst and a heat exchanger in that order in the direction of flow, a catalyst for the decomposition of N O is located between the noble metal gauze catalyst and the heat exchanger and in a process for the catalytic decomposition of N O in a gas mixture obtained in the preparation of nitric acid by catalytic oxidation of ammonia, where the N O is decomposed catalytically over a catalyst of the decomposition of N O, the hot gas mixture obtained from the catalytic oxidation of ammonia is brought to contact with the catalyst for the decomposition of N O prior to subsequent cooling.

Method for the catalytic decomposition of N2O

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

In a process for preparing oxides of nitrogen having a low degree of oxidation by catalytic oxidation of ammonia, ammonia mixed with air and water vapor is oxidized over an oxidation catalyst.

Preparation of oxides of nitrogen having a low degree of oxidation

Method of removing nitrogen oxides from a gas flow

In a process for the continuous preparation of adipic acid by hydrolysis of C.sub.1 -C.sub.4 -alkyl adipates with water at an elevated temperature in the presence of a strongly acidic ion exchanger, the improvement that the esters and excess water are fed to the middle section of a column, reaction mixture is taken off at a plurality of trays of the column below the feed point, passed over a strongly acidic ion exchanger and recycled, alkanols or alkanol/water mixtures are taken off at the top of the column and an aqueous solution of adipic acid is taken off at the bottom of the column.

Continuous preparation of adiptic acid

Growing community of inventors

Frankenthal, Germany

Volker Schumacher