Catalyst and a method for its production and use of same

US5905056A · kind A · utility

Assignee

• Daimler-Benz AG · DE

Inventors

• Martin Hartweg · Erbach, DE
• Andrea Seibold · Blaustein, DE
• Leonhard Walz · Rastatt, DE
• Thomas Fetzer · Speyer, DE
• Bernd Morsbach · Ludwigshafen, DE

Key dates

• Filing date: Dec 12, 1996
• Grant date: May 18, 1999
• Expiry date: Dec 12, 2016

Classification

• Technology area (CPC Y): Emerging Cross-Sectional Technologies
• CPC primary: Y10S502/525
• WIPO field: Chemical engineering
• WIPO sector: Chemistry

Abstract

A catalyst and a method for producing the catalyst, for catalytic reduction of NO.sub.x and oxidation of hydrocarbons, the catalyst comprises a zinc, copper and aluminum spinel to which, at least one element selected from palladium, platinum, rhodium, ruthenium, osmium, iridium, rhenium and/or rare earth metals, such as lanthanum and cerium, vanadium, titanium, niobium, molybdenum, tungsten and/or salts thereof and/or oxides thereof has been added.