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. 08, 1997
Filed:
Dec. 27, 1995
Applicant:
Inventors:
Matthew Lincoln Wagner, White Plains, NY (US);
Donald Walter Kirkwood, Oakville, CA;
Kazuo Kiyonaga, Honolulu, HI (US);
Assignee:
Praxair Technology, Inc., Danbury, CT (US);
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
C07D / ; C07B / ;
U.S. Cl.
CPC ...
549259 ; 549256 ; 549257 ; 549248 ; 549249 ; 558319 ; 558327 ; 562544 ; 568475 ; 568476 ; 546286 ;
Abstract
This invention is directed towards an improved process for the selective gas phase oxidation of a organic reactant using a metal oxide redox catalyst, wherein the organic reactant and air feeds are at a substantially continuous level, the improvement comprising adding a fluctuating flow of oxygen at alternating relatively high and relatively low levels. The invention also teaches means by which a gas may be provided to a reaction process on a fluctuating basis.