Process for producing trichloroisocyanuric acid

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.

Dependencies are inferred from the claim text.