Method for making a heterogeneous epoxidation catalyst

US6383966B1 · kind B1 · utility

Assignee

• Arco Chemical Technology, L.P. · US

Inventors

• Yuan-Zhang Han · West Chester, US
• Edrick Morales · West Chester, US
• Robert G. Gastinger · West Chester, US
• Kevin M. Carroll · Wayne, US

Key dates

• Filing date: Jun 9, 2000
• Grant date: May 7, 2002
• Expiry date: Jun 9, 2020

Classification

• Technology area (CPC B): Performing Operations; Transporting
• CPC primary: B01J37/0238
• WIPO field: Chemical engineering
• WIPO sector: Chemistry

Abstract

Highly active and selective epoxidation catalysts are prepared by combining highsurface area silica support or the like, having surface area greater than 1100 m2/g, with a titanium source. The titanium source is a non-oxygenated hydrocarbon solution of a titanium halide or a vapor stream of titanium tetrachloride. The impregnated support is then calcined at an elevated temperature (preferably, in a substantially oxygen-free atmosphere), and, optionally, reacted with water and/or silylated. The resulting materials are highly active heterogeneous epoxidation catalysts for the reaction of olefins with organic hydroperoxides.