The paper introduced PTA production process and its technology progress. It also analyzed current situation of PTA production, market and future development at home and abroad.
The source of PT acid in PTA, the crystal principle of PT acid and PTA, the variable factors cooling speed and solvent ratio in the crystal process were analysed.
分析了PTA中PT酸的来源，PT酸与PTA结晶过程的结晶原理，结晶过的可变因素冷却速度和溶剂比。
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The properties of purified terephthalic acid(PTA)waste mud in the process of PTA sewage tank were intro- duced briefly.