Use of catalysts based on catalyst supports containing silicon dioxide for catalytic reactions under hydrothermal conditions

US5959164A · kind A · utility

Assignee

• Degussa-Huels AG · DE

Inventors

• H. G. J. Lansink-Rotgerink · Goldbach, DE
• Heike Riedemann · Mömbris, DE
• Thomas Tacke · Friedrichsdorf, DE
• Helmfried Krause · Rodenbach, DE
• Andreas Freund · Kleinostheim, DE
• Roland Burmeister · Hanau, DE
• Peter Panster · Rodenbach, DE

Key dates

• Filing date: Feb 27, 1997
• Grant date: Sep 28, 1999
• Expiry date: Feb 27, 2017

Classification

• Technology area (CPC C): Chemistry; Metallurgy
• CPC primary: C07C29/04
• WIPO field: Chemical engineering
• WIPO sector: Chemistry

Abstract

The use of modified silicon dioxide as a catalyst support in catalytic reactions under hydrothermal conditions is described. The pore structure of the supports may be stabilized against hydrothermal reaction conditions by impregnating the catalyst supports with elements of Group IVB of the Periodic Tube of Elements.