Method for producing catalysts containing metal nanoparticles on a porous support, especially for gas phase oxidation of ethylene and acetic acid to form vinyl acetate

US6603038B1 · kind B1 · utility

Assignee

• CELANESE CHEMICALS EUROPE GMBH · DE

Inventors

• Alfred Hagemeyer · Sunnyvale, US
• Uwe Dingerdissen · Seeheim-Jugenheim, DE
• Klaus Kuhlein · Kelkheim, DE
• Andreas Manz · Basel, CH
• Roland Fischer · Bochum, DE

Key dates

• Filing date: Apr 28, 2000
• Grant date: Aug 5, 2003
• Expiry date: Apr 28, 2020

Classification

• Technology area (CPC B): Performing Operations; Transporting
• CPC primary: B01J2235/30
• WIPO field: Chemical engineering
• WIPO sector: Chemistry

Abstract

The invention relates to a method for producing a catalyst containing one or several metals from the group of metals comprising the sub-groups Ib and VIIIb of the periodic table on porous support particles, characterized by a first step in which one or several precursors from the group of compounds of metals from sub-groups Ib and VIIIb of the periodic table is or are applied to a porous support, and a second step in which the porous, preferably nanoporous support to which at least one precursor has been applied is treated with at least one reduction agent, to obtain the metal nanoparticles produced in situ in the pores of said support.