PTA产品光学品质及影响因素  

Optical quality and influence factors of PTA production

作　　者：魏世康 

机构地区：[1]中国石化扬子石油化工有限公司化工厂,江苏南京210048

出　　处：《聚酯工业》2014年第6期5-9,共5页Polyester Industry

摘　　要：介绍了现有粗对苯二甲酸(CTA)和精对苯二甲酸(PTA)产品光学品质的表征方法,指出PTA生产过程中的有色杂质包括了有机多环副产物和部分金属离子,CTA产品透光率与PTA的b值之间存在着一定相应关系。着重阐述了透光率和b值的各自影响因素,以及相应的控制方法。The characterization methods of optical quality of existing CTA and PTA products are introduced. It is points out that the colored impurity in the process of PTA production includes organic polycyclic by-products and some metal ions. There is a corresponding relationship between the light transmittance of TA product and PTA b value. It is emphatically expounded the influence factors on the light transmittance and PTA b value and the methods to control them.

关 键 词：PTA 光学品质 控制方法 

分 类 号：TQ245.12[化学工程—有机化工]