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:
Aug. 13, 1991
Filed:
Jul. 18, 1990
Nissan Chemical Industries, Ltd., Tokyo, JP;
Abstract
When trichloroisocyanuric acid is produced by a process which comprises supplying unreacted chlorine from a second reaction zone to a cooled mixture of cyanuric acid and an aqueous alkali solution in a first reaction zone to form a partially chlorinated alkali salt of cyanuric acid, and introducing the reaction product of the first reaction zone and chlorine into the second reaction zone to complete the chlorination of the reaction product from the first reaction zone, the supply of the chlorine into the second reaction zone is so controlled as to ensure that the mixture in the first reaction zone be maintained at a temperature of 5.degree. C. to 20.degree. C. The second reaction zone is advantageously defined by a vertically disposed loop-shaped reactor.