日用化学品科学2025，Vol.48Issue(10)：48-52,5.DOI:10.3969/j.issn.1006-7264.2025.10.009
脂肪醇聚氧乙烯醚(AEO2)中副产物聚乙二醇含量研究
Study on the content of polyethylene glycol as a byproduct in fatty alcohol polyethylene glycol ethers(AEO2)
张明慧 1周婧洁 2刘瑜琦2
作者信息
- 1. 中轻日化科技有限公司,上海 201512
- 2. 中国日用化学研究院有限公司,山西 太原 030001
- 折叠
摘要
Abstract
In the production of fatty alcohol polyethylene glycol ethers,in addition to generating target products with varying degrees of ethylene oxide polymerization,a small amount of polyethylene glycol(PEG)is also formed as a byproduct.In this study,orthogonal experiments were conducted to investigate the effects of key factors—including the moisture content in the chain initiator,type and dosage of catalyst,reaction temperature,ethylene oxide concentration during the reaction,and reaction time—on the PEG content in fatty alcohol polyethylene glycol ether products(AEO₂).The results showed that the optimal process conditions for controlling the PEG mass fraction are as follows:sodium hydroxide as catalyst at 0.08%(based on product weight);dehydration at 103 ℃ for 80 min under vacuum pressure<0.6 kPa,ensuring a pre-treatment moisture content≤0.07%;reaction temperature maintained at 153 ℃ and reaction time of 90 min.Under these conditions,the PEG content in the final AEO₂ product can be effectively controlled below 0.7%.关键词
乙氧基化/环氧乙烷/聚乙二醇Key words
ethoxylation/ethylene oxide/polyethylene glycol分类
化学化工引用本文复制引用
张明慧,周婧洁,刘瑜琦..脂肪醇聚氧乙烯醚(AEO2)中副产物聚乙二醇含量研究[J].日用化学品科学,2025,48(10):48-52,5.
