Doped Pd/Au shell catalyst, method for producing the same and use thereof

US8586780B2 · kind B2 · utility

Assignee

• Sued-Chemie IP GmbH & Co. KG · DE

Inventors

• Alfred Hagemeyer · Sunnyvale, US
• Gerhard Mestl · Munich, DE
• Peter Scheck · Gilching, DE

Key dates

• Filing date: May 30, 2008
• Grant date: Nov 19, 2013
• Expiry date: Jun 22, 2028

Classification

• Technology area (CPC B): Performing Operations; Transporting
• CPC primary: B01J37/0207
• WIPO field: Chemical engineering
• WIPO sector: Chemistry

Abstract

A shell catalyst for producing vinyl acetate monomer (VAM), comprising an oxidic porous catalyst support, formed as a shaped body, with an outer shell in which metallic Pd and Au are contained. To provide a shell catalyst for producing VAM which has a relatively high activity and can be obtained at relatively low cost, the catalyst support is doped with at least one oxide of an element selected from the group consisting of Li, P, Ca, V, Cr, Mn, Fe, Sr, Nb, Ta, W, La and the rare-earth metals.