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:
Apr. 15, 2008
Filed:
Nov. 24, 2004
John Harvey Eng, Wilmington, DE (US);
John Harvey Eng, Wilmington, DE (US);
E.I. du Pont de Nemours and Company, Wilmington, DE (US);
Abstract
A process for preparing a catalyst, comprising sequentially: (a) saturating a TiOsupport with aqueous ruthenium solution; (b) treating the ruthenium saturated TiOsupport with an aqueous base solution; and (c) curing the ruthenium saturated TiOto impregnate the TiOwith ruthenium. Preferably, subsequent to step (c) the process comprises sequentially (d) washing the ruthenium impregnated TiOwith water, (e) drying the washed ruthenium impregnated TiO, and (f) heat treating the ruthenium impregnated TiOunder reducing conditions at temperatures of 150-800° C. A catalyst prepared by the process. A process for the production of 1,3-propanediol, comprising: (a) providing 3-hydroxypropanal and the catalyst, and (b) hydrogenating the 3-hydroxypropanal in the presence of the catalyst.