Semi-Cyclic Method Of Cyanuric Acid

There are mainly urea pyrolysis and semi-circulation methods.

Semi-circulation method: Put cyanuric acid powder into the ball plate, gradually add urea, the molar ratio is 1.7~2, heat up to 190 °C, continue for half an hour, stop heating, continue rolling until no ammonia gas is formed. A small portion is taken out, pulverized, dissolved in sulfuric acid, boiled, centrifuged, washed and dried to obtain a finished product. The rest continues to circulate.