乙二醇苯基醚丙烯酸酯的连续合成工艺研究

李佳欣, 谭伟, 张维刚, 蔡晓兰, 方岩雄

现代化工 ›› 2023, Vol. 43 ›› Issue (11) : 190 -193.

PDF (1449KB)
现代化工 ›› 2023, Vol. 43 ›› Issue (11) : 190-193. DOI: 10.16606/j.cnki.issn0253-4320.2023.11.035
科研与开发

乙二醇苯基醚丙烯酸酯的连续合成工艺研究

    李佳欣, 谭伟, 张维刚, 蔡晓兰, 方岩雄
作者信息 +

Continuous synthesis process for ethylene glycol phenyl ether acrylate

Author information +
文章历史 +
PDF (1482K)

摘要

针对传统工业化合成乙二醇苯基醚丙烯酸酯(PHEA)存在效率低、能耗高和三废量大等问题,以丙烯酸与苯氧乙醇为原料,在固体酸催化作用下利用反应精馏技术进行连续酯化反应得到目标产物PHEA。在固定催化剂质量为34 g的条件下,考察反应温度、原料醇酸摩尔比、进料速度及空气流速对PHEA收率的影响。结果表明,在反应温度为110℃、原料醇酸摩尔比为1.0∶3.0、进料速度为120 g/h、空气流速为500 mL/min时,PHEA收率可达87.55%。对固体酸催化剂进行稳定性考察,该固体酸表现出良好的稳定性。

Abstract

Traditional industrial synthesis process for ethylene glycol phenyl ether acrylate (PHEA) has the problems such as low efficiency, high energy consumption and many wastes.Therefore, a continuous synthesis process is developed.With acrylic acid and phenoxyethanol as raw materials, the target product PHEA is obtained through continuous esterification by using reactive distillation technology under the catalysis of solid acid.As catalyst dosage is fixed at 34 g, the effects of synthesis process parameters, such as reaction temperature, molar ratio of raw alcohol to acid, feed rate and air flow rate, on the yield of PHEA are investigated.The better synthesis process conditions are obtained as follows:reaction temperature is 110℃, the molar ratio of raw alcohol to acid is 1.0:3.0, the feed rate is 120 g·h-1 and the air flow rate is 500 mL·min-1.Under these conditions, the yield of PHEA reaches 87.55%.It is found from investigation that the solid acid catalyst shows good stability.

关键词

乙二醇苯基醚丙烯酸酯 / 稳定性 / 反应精馏 / 苯氧乙醇 / 丙烯酸

Key words

ethylene glycol phenyl ether acrylate / stability / reactive distillation / phenoxyethanol / acrylic acid

Author summay

李佳欣(1998-),女,硕士生,研究方向为精细化学品的合成,1392819639@qq.com

引用本文

引用格式 ▾
乙二醇苯基醚丙烯酸酯的连续合成工艺研究[J]. 现代化工, 2023, 43(11): 190-193 DOI:10.16606/j.cnki.issn0253-4320.2023.11.035

登录浏览全文

4963

注册一个新账户 忘记密码

参考文献

AI Summary AI Mindmap
PDF (1449KB)

427

访问

0

被引

导航
相关文章

AI思维导图

/