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:
Jun. 30, 1992
Filed:
Oct. 04, 1989
Applicant:
Inventor:
George E Heinsohn, Elkton, MD (US);
Assignee:
E. I. Du Pont de Nemours and Company, Wilmington, DE (US);
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
C07C / ; C07C / ;
U.S. Cl.
CPC ...
560177 ;
Abstract
The process in which alkyl glyoxylates are prepared by the catalytic oxidative dehydrogenation of the corresponding alkyl glycolates is improved by carrying out the process in at least two adiabatic reaction stages in series, in which no more than about 60 percent of the stoichiometric amount of oxygen is used in the first stage.