Non-oxide metal ceramic catalysts comprising metal oxide support and intermediate ceramic passivating layer

US5338716A · kind A · utility

Assignee

• AKZO NOBEL N.V. · NL

Inventors

• Kelly B. Triplett · Stamford, US
• Johst H. Burk · Potsdam, US
• Fawzy G. Sherif · Spring Valley, US
• Willem Vreugdenhil · Katonah, US

Key dates

• Filing date: Dec 1, 1992
• Grant date: Aug 16, 1994
• Expiry date: Dec 1, 2012

Classification

• Technology area (CPC B): Performing Operations; Transporting
• CPC primary: B01J27/24
• WIPO field: Chemical engineering
• WIPO sector: Chemistry

Abstract

Supported non-oxide metal carbide-containing catalysts are provided which comprise: (a) an oxide support, such as alumina or cordierite; (b) a passivating layer of a ceramic, such as silicon carbide; and (c) a non-oxide metal ceramic catalytic component, such as a Group VI metal carbide or nitride, preferably tungsten carbide or molybdenum carbide.