直接酯化法合成对苯二甲酸双羟丁酯反应中1,4-丁二醇含量的测定  

Determination of 1,4-Butandiol in the Process of Direct Esterification Synthesis of Bishydroxybutyl Terephthalate

作　　者：刘尔嘉[1] 谢晓峰 何进章 陈星枚 

机构地区：[1]北京服装学院精细化工系,100029

出　　处：《北京服装学院学报（自然科学版）》1997年第2期40-43,共4页Journal of Beijing Institute of Fashion Technology：Natural Science Edition

摘　　要：研究了测定直接酯化法合成对苯二甲酸双羟丁酯过程中液相里1，4－丁二醇含量的气相色谱方法．为避免通常繁琐的衍生化步骤，采用了一个简便的前处理方法．该方法将1，4－丁二醇与高沸点组分分离，然后用内标法进行测定．该方法的精密度和回收率较好，可满足工艺要求．The gas chromatographic method for quantitative determining the 1, 4-butandiol which is present in liquid phasein the synthesis of bishydroxybutyl terephthaIate by direct esterification process has been investigated. Instead of thetradional tedious derivation procedure, a simp1e and convenient pretreatment process is used and results in separation of1, 4-butandiol and high boiling components , then 1, 4-butandiol is determined by internal standard methods. Theprecision and recovery of method are satisfactory and can meet the requirements of technology.

关 键 词：丁二醇 苯二甲酸酯 气相色谱分析 PBT 

分 类 号：O657.71[理学—分析化学] O623.624.1[理学—化学]