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. 17, 1990
Filed:
Apr. 12, 1988
Applicant:
Inventor:
Thomas G Smith, Naperville, IL (US);
Assignee:
Amoco Corporation, Chicago, IL (US);
Primary Examiner:
Int. Cl.
CPC ...
C07C / ; C07C / ;
U.S. Cl.
CPC ...
562599 ; 502 38 ; 502 49 ; 502 52 ;
Abstract
Process is disclosed for regeneration of a solid methacrylic acid catalyst wherein said catalyst is decoked in the presence of an oxygen-containing gas at an initial temperature no greater than 650.degree. F. and then by increasing the temperature incrementally to complete the regeneration at a temperature of from about 650.degree. F. to 800.degree. F.