Synthesis of di(2-(2-butoxyethoxy)ethanol) terephthalate

doi:10.16085/j.issn.1000-6613.2015.04.036

Chemical Industry and Engineering Progree ›› 2015, Vol. 34 ›› Issue (04): 1109-1114.DOI: 10.16085/j.issn.1000-6613.2015.04.036

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Synthesis of di(2-(2-butoxyethoxy)ethanol) terephthalate

TAN Jihuai¹, CHEN Muhua^1,2, XIE Bingxue¹, LIU Zhun², CAO Huiqing², ZHU Xinbao^1,2

1. College of Chemical Engineering, Nanjing Forestry University, Nanjing 210037, Jiangsu, China;
2. Jiangsu Alcohol Ethers Engineering Technology Research Center, Wuxi 214441, Jiangsu, China

Received:2014-09-20 Revised:2014-10-13 Online:2015-04-05 Published:2015-04-05

新型增塑剂对苯二甲酸二(二乙二醇丁醚)酯的合成工艺

谈继淮¹, 陈慕华^1,2, 谢冰雪¹, 刘准², 曹慧庆², 朱新^1,2

1. 南京林业大学化学工程学院, 江苏南京 210037;
2. 江苏省醇醚工程技术研究中心, 江苏无锡 214441

通讯作者: 朱新宝,教授,博士生导师.E-mail zhuxinbao@njfu.com.cn.
作者简介:谈继淮(1988—),男,硕士研究生,研究方向为精细有机合成.E-mail Tanjihuai@163.com.
基金资助:
江苏省产学研联合创新资金计划(BY2010113)及江苏高校优势学科建设工程项目.

Abstract

Abstract: A synthesis process of di(2-(2-butoxyethoxy)ethanol) terephthalate from terephthalic acid and 2-(2-butoxyethoxy)ethanol was studied. The influences of catalyst type and amount,ratio of reactants,dosage of water-entrainer,reaction temperature,and reaction time were investigated. In addition,the target product was determined by FT-IR and GC-MS. The optimal reaction condition was obtained as follows:n(DGBE):n(PTA)=3.5:1,catalyst (5.00% of mass of PTA),water-entrainer (30.00% of mass of PTA),reaction time (5.50h) and stirring speed of 300r/min,under which the esterification rate was 98.90%. The content of di(2-2(2-butoxyethoxy)tehanol) terephthalate reaches 99.03% in refined product. The apparent kinetics model of esterification was established,and the equation of reaction rate was: r=9.83×10¹⁷e^{-(9167.14/RT)}

Key words: terephthalic acid, 2-(2-butoxyethoxy)ethanol, di(2-(2-butoxyethoxy)ethanol) terephthalate, plasticizer, kinetics

摘要： 以对苯二甲酸和二乙二醇丁醚为原料,在非酸性催化剂氯化亚锡的催化下,合成新型环保增塑剂对苯二甲酸二(二乙二醇丁醚)酯.考察了催化剂种类、原料配比、催化剂用量、带水剂用量、反应时间对酯化率的影响并通过FT-IR、GC-MS等进行产物表征.正交实验结果表明:当二乙二醇丁醚与对苯二甲酸的摩尔比为n(DGBE):n(PTA)=3.5:1,催化剂氯化亚锡用量为5.00%(以PTA质量为准,下同),带水剂用量为30.00%,反应时间为5.50h,搅拌转速300r/min时,产品的酯化率高达98.90%,精制后对苯二甲酸二(二乙二醇丁醚)酯的含量为99.03%.同时建立了该酯化合成的表观动力学模型,得到反应速率方程为: r=9.83×10¹⁷e^{-(9167.14/RT)}

关键词: 对苯二甲酸, 二乙二醇丁醚, 对苯二甲酸二(二乙二醇丁醚)酯, 增塑剂, 动力学

CLC Number:

TQ414.91

TAN Jihuai, CHEN Muhua, XIE Bingxue, LIU Zhun, CAO Huiqing, ZHU Xinbao. Synthesis of di(2-(2-butoxyethoxy)ethanol) terephthalate[J]. Chemical Industry and Engineering Progree, 2015, 34(04): 1109-1114.

谈继淮, 陈慕华, 谢冰雪, 刘准, 曹慧庆, 朱新. 新型增塑剂对苯二甲酸二(二乙二醇丁醚)酯的合成工艺[J]. 化工进展, 2015, 34(04): 1109-1114.

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Synthesis of di(2-(2-butoxyethoxy)ethanol) terephthalate

新型增塑剂对苯二甲酸二(二乙二醇丁醚)酯的合成工艺

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