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:
Mar. 30, 1982
Filed:
Oct. 17, 1979
Applicant:
Inventors:
Tom A Bither, Jr, Wilmington, DE (US);
William R McClellan, Kennett Square, PA (US);
Assignee:
E. I. Du Pont de Nemours and Company, Wilmington, DE (US);
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
C07D / ;
U.S. Cl.
CPC ...
26034611 ; 252437 ; 252439 ; 252462 ; 252464 ; 252467 ; 252468 ; 252470 ;
Abstract
Catalytic vapor phase process wherein the feed stream comprising, on a molar basis, the sum of which is 100%, 10-32% of at least one linear unsaturated C.sub.4 -hydrocarbon selected from 1-butene, 2-butene and 1,3-butadiene, 10-25% oxygen, 3-30% water and 13-77% inert diluent, is contacted with a modified bismuth molybdenum oxide catalyst at 350.degree.-600.degree. C. at a pressure of at least 1 atmosphere (about 100 kPa) for 0.1-10 seconds, said catalyst being selected from: