The influence of process conditions on the formation of ether linkage or diethylene glycol(DEG)formed during the direct esterifica tion of terephthalic acid(TPA)in batch is studied.

• 本文研究了对苯二甲酸(PTA)间歇式直接酯化法酯化阶段工艺条件对醚键或二甘醇(DEG)生成的影响。