Hydrophobic catalyst for recombiners

US4350610A · kind A · utility

Assignee

• Varta Batterie Aktiengesellschaft · DE

Inventors

• Margarete Jung · Kelkheim, DE
• August Winsel

Key dates

• Filing date: Apr 9, 1981
• Grant date: Sep 21, 1982
• Expiry date: Apr 9, 2001

Classification

• Technology area (CPC Y): Emerging Cross-Sectional Technologies
• CPC primary: Y02E60/10
• WIPO field: Chemical engineering
• WIPO sector: Chemistry

Abstract

A palladium-containing catalyst mat is made of a rolled PTFE-Kieselgur mixture which has been soaked with PdCl.sub.2 solution. It is made hydrophobic after soaking by treatment with a PTFE-Emulsion. Finally, it is subjected at about 430.degree. C. to a process which is similar to sintering and in which very finely divided Pd is produced through heat decomposition of the PdCl.sub.2. The catalyst mat is preferably combined with a carbon mat impregnated with CuO which, for example, may be a carbon felt which has been made denser through roller compression.