The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
May. 07, 2002
Filed:
Jun. 09, 2000
Yuan-Zhang Han, West Chester, PA (US);
Edrick Morales, West Chester, PA (US);
Robert G. Gastinger, West Chester, PA (US);
Kevin M. Carroll, Havertown, PA (US);
Arco Chemical Technology, L.P., Greenville, DE (US);
Abstract
Highly active and selective epoxidation catalysts are prepared by combining highsurface area silica support or the like, having surface area greater than 1100 m /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.