PET装置工艺废水醛含量的测定  

Determination of aldehyde in craft wastewater of polyester plant

作　　者：孙双 徐艳敏 郑立梅 马发明 陈金彪 SUN Shuang;XU Yan-min;ZHENG Li-mei;MA Fa-ming;CHEN Jin-biao(Liaoyang Petrochemical Company,Liaoyang 111003,China)

机构地区：[1]中国石油辽阳石化分公司,辽宁辽阳111003

出　　处：《聚酯工业》2021年第6期54-55,共2页Polyester Industry

摘　　要：通过加入一定量的亚硫酸钠,用硫酸标准滴定溶液进行滴定,以百里酚酞为指示剂,通过观察溶液颜色变化判断滴定终点,根据消耗标准滴定溶液的体积计算得出样品中醛含量。结果表明:该方法精密度高、重现性好,准确可靠。By adding a certain amount of sodium sulfite,thymolphthalein was used as indicator,titrate with a sulfuric acid standard titration solution,then judge the titration end point by the solution color change,by the consumption of standard solution volume of the black and sample,accuate the aldehyde content in the sample.The result showed that the method has good accuracy and precision,so does the repeatability.

关 键 词：PET装置 工艺废水 醛 滴定分析法 

分 类 号：TQ323.41[化学工程—合成树脂塑料工业]