Shaped metal fixed-bed catalyst, a process for its preparation and its use

US6337300B1 · kind B1 · utility

Assignee

• Degussa AG · DE

Inventors

• Jorg Sauer · Rodenbach, DE
• Thomas Haas · Munster, DE
• Bruno Keller · Zürich, CH
• Andreas Freund · Kleinostheim, DE
• Werner Burkhardt · Wächtersbach, DE
• Dietrich Michelchen · Niederrodenbach, DE
• Monika Berweiler · Maintal, DE

Key dates

• Filing date: May 19, 1998
• Grant date: Jan 8, 2002
• Expiry date: May 19, 2018

Classification

• Technology area (CPC C): Chemistry; Metallurgy
• CPC primary: C07C209/48
• WIPO field: Chemical engineering
• WIPO sector: Chemistry

Abstract

A shaped metal fixed-bed catalyst is disclosed which contains at least one catalyst alloy formed of a catalyst metal and an extractable alloying component. The catalyst is activated in an outer layer with a thickness of 0.1 to 2.0 mm starting from the surface by complete or partial extraction of the extractable alloying component. The catalyst may also contain promoters. The catalyst is distinguished from known catalyst in that it is formed exclusively of the catalyst alloy and has a total pore volume of 0.1 to 0.6 ml/g. The catalyst is used for hydrogenation, dehydrogenation and hydrogenolysis reactions.