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:
Oct. 17, 2006
Filed:
Jul. 31, 2002
David G. Barton, Midland, MI (US);
Robert G. Bowman, Midland, MI (US);
George E. Hartwell, Midland, MI (US);
Howard W. Clark, Lake Jackson, TX (US);
Alexander Kuperman, Orinda, CA (US);
David G. Barton, Midland, MI (US);
Robert G. Bowman, Midland, MI (US);
George E. Hartwell, Midland, MI (US);
Howard W. Clark, Lake Jackson, TX (US);
Alexander Kuperman, Orinda, CA (US);
Dow Global Technologies Inc., Midland, MI (US);
Abstract
A method of increasing the lifetime of a hydro-oxidation catalyst comprising, preferably, gold, silver, or mixtures thereof, and optionally one or more promoters, on a titanium-containing support, such as a titanosilicate or titanium dispersed on silica. The method of the invention involves contacting the catalyst support with a hydroxy-functionalized organosilicon compound, a carboxy-functionalized organosilicon compound, or a mixture of hydroxy- and carboxy-functionalized organosilicon compounds, such as, sodium methyl siliconate or (2-carboxypropyl)tetramethyldisiloxane. The contacting is preferably conducted during deposition of the catalytic metal(s) and optional promoters(s) onto the support. A catalyst composition and hydro-oxidation process utilizing the silicon-treated catalyst support are also claimed.