Process for producing trichloroisocyanuric acid
US5039800A · kind A · utility
Assignee
Inventors
Key dates
| Filing date | Jul 18, 1990 |
| Grant date | Aug 13, 1991 |
| Priority date | — |
| Expiry date | Jul 18, 2010 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC07D251/36
- WIPO fieldOrganic fine chemistry
- WIPO sectorChemistry
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.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.