Organic compounds -- part of the class 532-570 series – Organic compounds – Four or more ring nitrogens in the bicyclo ring system
Patent
1990-07-18
1991-08-13
Ford, John M.
Organic compounds -- part of the class 532-570 series
Organic compounds
Four or more ring nitrogens in the bicyclo ring system
C07D25136
Patent
active
050398008
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.
REFERENCES:
patent: 3534033 (1970-10-01), Kagawa et al.
patent: 4542218 (1985-09-01), Spooner
patent: 4645835 (1987-02-01), Pieper
Murakami Takashi
Nishida Yuzi
Ono Takami
Ford John M.
Nissan Chemical Industries Ltd.
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