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trichloroisocyanuric acid (TCCA) has been used as aromatic chlorinating agent

The most commonly used N-chloroamide is N-chlorosuccinimide (NCS) that contrary to trichloroisocyanuric acid (TCCA) and as other chloroamides are thermally unstable and can explode at elevated temperature. The theoretical available chlorine content is a value for the atom efficiency of these reagents: trichloroisocyanuric acid (TCCA) has the lowest bulk price in relationship to the amount of active chlorine. Last, but not least important, trichloroisocyanuric acid (TCCA) has the highest solubility of the three reagents in organic solvents and the lowest toxicity. 
However, although trichloroisocyanuric acid (TCCA) has been produced on large scale for use in domestic and industry since the 1950s, it has never had a valid breakthrough in organic applications, probably because earlier experiments have indicated a rather uncontrolled chlorination with trichloroisocyanuric acid (TCCA) in comparison to those using NCS. Ziegler and coworkers reported the use of trichloroisocyanuric acid (TCCA) as a reagent in organic synthesis for chlorination of alkenes in 1942. Successively, trichloroisocyanuric acid (TCCA) has been used as aromatic chlorinating agent and in other chlorination procedures.
The present invention discloses a two stage continuous chlorination produce trichloroisocyanuric acid (TCCA) approach. Its production process includes a chlorination reaction and secondary chlorination. In the secondary reactor leads to excessive chlorine, cyanuric acid trisodium salt solution is continuously added to a reactor, a reactor jet pump system will be two reactor excess chlorine inhalation of a chlorination reactor, the reaction fluid overflow into the secondary reactor continued the reaction of trichloroisocyanuric acid (TCCA). Chlorination reactor utilizing a reaction temperature within the primary reactor and secondary depth material amount of chlorine through the reactor. The mother liquor of the present invention, less chlorinated, high reaction efficiency, a reactor vent gas does not contain chlorine. The residence time of material in a short chlorination system, helps to reduce the side effects, the product stable at 90% available chlorine, yield more than 86%.