激光衍射法测试PTA粒径的影响因素研究  

Study on PTA particle size distribution analysis with laser diffraction method

作　　者：陈建梅[1] 季轩[1] 

机构地区：[1]中国石化仪征化纤有限责任公司研究院,江苏仪征211900

出　　处：《合成技术及应用》2016年第3期53-57,共5页Synthetic Technology & Application

摘　　要：使用马尔文公司的Mastersizer2000激光粒度仪干法模式测试PTA粒径分布,考察不同测试条件对粒径分布的影响.实验结果表明：在气流分散压力200kPa、进样速度50%、测试时间为5-8s的条件下,PTA样品的粒径和粒径分布测试过程方便快捷,测试结果重现性好.分析结果与筛分法结果相符,说明了干法模式测试结果的可靠性.The effects on PTA particle size distribution analysis by dry mode using Malvern Mastersizer 2000 laser particle size analyzer were discussed. The results showed that the optimum conditions as follows ： disperser pressure should be 200 kPa,inlet velocity should be 50%,measurement time should be 5 ？8 s. The method was simple, fast and good reproducible. We contrasted the analyzing result with sieve method to insure that the result given by dry mode is reliable.

关 键 词：PTA 粒径分布 激光衍射法 干法模式 

分 类 号：TQ245.12[化学工程—有机化工]