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:
Oct. 19, 1976
Filed:
May. 05, 1971
Applicant:
Inventors:
William R McClellan, Kennett Square, PA (US);
Alvin B Stiles, Wilmington, DE (US);
Assignee:
E. I. Du Pont de Nemours and Company, Wilmington, DE (US);
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
C07C / ;
U.S. Cl.
CPC ...
2606 / ; 252436 ; 252469 ;
Abstract
Methanol is converted to formaldehyde in a two step vapor phase process. In the first step the methanol is partially converted to formaldehyde over a silver catalyst, and in the second step the remaining methanol is converted to formaldehyde over a bismuth molybdate- or bismuth phosphomolybdate-on-titania catalyst having the formula: