The simulation of PTA continuous multistage depressurization evaporation crystallization

Based on the PTA crystallization kinetics which obtained from research,the mathematic model of PTA continuous multistage depressurization evaporation crystallization process was made.The industrial data were used to carry out the verification.The results showed that the model can be better applied to the simulation PTA continuous multistage depressurization evaporation crystallization process.Also the effects of main technology variable on the crystallization process were researched.