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. 13, 1978
Filed:
Nov. 02, 1976
Applicant:
Inventors:
Allen I Feinstein, Wheaton, IL (US);
Shantaram G Kane, Naperville, IL (US);
Ellis K Fields, River Forest, IL (US);
Assignee:
Standard Oil Company (Indiana), Chicago, IL (US);
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
C07C / ;
U.S. Cl.
CPC ...
568802 ; 568800 ; 368798 ; 568733 ; 568741 ; 568747 ;
Abstract
Aromatic aldehydes wherein the aldehyde group is directly attached to the aromatic ring are oxidized directly to phenolic compounds in the vapor phase. Tar and carbonaceous product formation are minimized by the method of preheating and mixing the reactants and by a rapid reaction temperature quench of the reaction mixture to below 0.degree. C. Mixing temperature is 300.degree.-350.degree. C. and reaction temperature is 400.degree.-600.degree. C. at 1-10 atmosphere pressure.