Process for production of acid cianurico and process to remove a contaminant from a mixture of acid in inert solvent and cianurico

摘要

Unreacted urea and/or biuret contaminants in a cyanuric acid-inert solvent reaction product are removed by distilling the solvent therefrom at a temperature of from about 150 DEG C. to about 250 DEG C. and at a pressure of from about 70 to about 170 mm. of Hg. A distillate of said solvent containing the urea, biuret and a cyanuric acid reaction product is collected.