PTA中PT酸的控制  

Control the PT acid content in PTA

作　　者：顾祥万[1] 

机构地区：[1]郑州大学材料科学与工程学院,河南郑州450002

出　　处：《聚酯工业》2006年第6期26-28,31,共4页Polyester Industry

摘　　要：对PTA装置精制单元的生产工艺进行分析,找出影响PTA中PT酸高的原因有:原料CTA中的4-CBA含量;结晶器的操作条件;Pd/C催化剂活性;离心机的分离效果,根据引起产品中PT酸超标的不同原因,采取了相应的措施。The production process of PTA plant refining unit was analysed. The reasons for the high PT acid content in PTA such as the 4-CBA content in material CTA ,the operation conditions of the crystallizer,the activity of Pd/C catalyst, the separate effects of the centrifuge were found out. According to the different reasons that cause the exceed standard of PT acid content,the corresponding countermeasures were taken.

关 键 词：PTA PT酸 产品品质 

分 类 号：TQ245.12[化学工程—有机化工]