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. 19, 1984
Filed:
Oct. 05, 1982
Applicant:
Inventor:
Jean Belot, Toulouse, FR;
Assignee:
CdF Chimie S.A., Paris, FR;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
C07D / ;
U.S. Cl.
CPC ...
544192 ;
Abstract
In a process for the manufacture of cyanuric acid by heating urea at a temperature above its melting point, an aqueous solution of urea is sprayed onto granules of crude cyanuric acid, recycled externally, and heated at a temperature of 220.degree.-280.degree. C. in a heat exchange zone heated by the walls thereof. A rotor in the device comprising a tubular shaft on which hollow discs are mounted, and in which a heat-transfer fluid circulates, is also employed to heat the material to the manufacture cyanuric acid in high yields.