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:
Jul. 19, 2005
Filed:
May. 07, 2003
Bing Zhou, Cranbury, NJ (US);
Lap-keung Lee, West Windsor, NJ (US);
Bing Zhou, Cranbury, NJ (US);
Lap-Keung Lee, West Windsor, NJ (US);
Hydrocarbon Technologies, Inc., Lawrenceville, NJ (US);
Abstract
A particulate supported noble metal phase-controlled catalyst material having 5-1000 μm surface area of 50μ500 m/gm is provided for use in direct catalytic production of hydrogen peroxide (HO) product from hydrogen and oxygen-containing feedstreams. The catalyst is made by depositing phase controlled crystals of a noble metal such as palladium on a suitable particulate support material such as carbon black, by utilizing a precursor solution of the metal and a suitable control ionic polymer having molecular weight of 300-8000 such as sodium polyacrylate in a selected metal to polymer molar ratio of 1:0.1 to 1:10, which procedure provides desired phase control of the noble metal atoms to form widely dispersed minute noble metal crystals on the support material. The invention includes methods for making the catalyst, and also a process for utilizing the catalyst to directly produce high yields of hydrogen peroxide (HO) product from hydrogen and oxygen-containing gaseous feedstreams.