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:
Sep. 17, 1985
Filed:
Oct. 30, 1981
Applicant:
Inventor:
Rudolf J Voorhoeve, Summit, NJ (US);
Assignee:
AT&T Bell Laboratories, Murray Hill, NJ (US);
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
C01C / ; C01C / ;
U.S. Cl.
CPC ...
423365 ; 564 63 ;
Abstract
A catalytic process has been found to produce urea or its equivalent, NH.sub.4 NCO, under relatively mild pressure and temperature conditions. This process entails flowing a gas mixture containing NO.sub.x, CO, and a source of hydrogen such as H.sub.2 or H.sub.2 C over a hydrogenation catalyst such as platinum. Yields of urea above 90 percent based on NO.sub.x conversion are obtainable.