Catalyst material

US6475951B1 · kind B1 · utility

Assignee

• Degussa-Huels AG · DE

Inventors

• Rainer Domesle · Alzenau, DE
• Ulrich Göbel · Hattersheim, DE
• Lothar Mussmann · Offenbach, DE
• Egbert Lox · Hanau, DE
• Thomas Kreuzer · Karben, DE

Key dates

• Filing date: Feb 25, 2000
• Grant date: Nov 5, 2002
• Expiry date: Feb 25, 2020

Classification

• Technology area (CPC Y): Emerging Cross-Sectional Technologies
• CPC primary: Y02T10/12
• WIPO field: Chemical engineering
• WIPO sector: Chemistry

Abstract

A powdered catalyst material based on aluminum oxide, which contains at least one basic metal oxide and at least one noble metal from the platinum group of the Periodic Table of Elements in addition to aluminum oxide. The catalyst material is obtainable by loading a support material already stabilized by basic oxides by renewed impregnation with further basic oxides. After drying and calcining this post-impregnated material at temperatures below 800° C., the catalytically active noble metals are also incorporated into the support material by impregnation.