Colloid-catalyzed gas transfer in supercritical phases

US7193120B2 · kind B2 · utility

Assignee

• BASF SE

Inventors

• Heiko G. Niessen · Wesseling, DE
• Klaus Woelk · Hinsdale, US
• Andreas Eichhorn · Munich, DE
• Joachim Bargon · Bonn, DE

Key dates

• Filing date: May 25, 2002
• Grant date: Mar 20, 2007
• Expiry date: Nov 29, 2022

Classification

• Technology area (CPC Y): Emerging Cross-Sectional Technologies
• CPC primary: Y02P20/54
• WIPO field: Organic fine chemistry
• WIPO sector: Chemistry

Abstract

The invention relates to a process for hydrogen transfer to chemical compounds, wherein hydrogen transfer is carried out in a supercritical or subcritical phase using stabilized and dispersed metal particles. The invention further provides for the use of metal colloids stabilized by organic compounds or embedded in organic compounds as catalysts in a process for hydrogen transfer to chemical compounds in a supercritical or subcritical phase so as to avoid the formation of free-radical intermediates during hydrogen transfer.