Process for preparing a shell-type catalyst

US6992040B2 · kind B2 · utility

Assignee

• Degussa AG · DE

Inventors

• Herbert Muller · Bischofswerda, DE
• Stefan Bosing · Mainz, DE
• Walter Behl · Blankenbach, DE

Key dates

• Filing date: Jul 29, 2003
• Grant date: Jan 31, 2006
• Expiry date: Jul 29, 2023

Classification

• Technology area (CPC B): Performing Operations; Transporting
• CPC primary: B01J35/397
• WIPO field: Chemical engineering
• WIPO sector: Chemistry

Abstract

A process for preparing a shell-type catalyst which comprises applying to a substantially nonporous inorganic support material having a BET surface area of <80 m2/g, a catalytically active outer shell of a suspension containing at least one water soluble noble metal compound and a substantially water insoluble coating compound, drying the suspension onto the support material, and activating the coated support material in a reducing gas stream.