|本期目录/Table of Contents|

[1]王莹,曹震,薛誉,等.酸性功能性离子液体催化合成二甘醇二苯甲酸酯[J].生物加工过程,2020,18(03):277-282.[doi:10.3969/j.issn.1672-3678.2020.03.002]
 WANG Ying,CAO Zhen,XUE Yu,et al.Acidic functional ionic liquid catalyzed synthesis of diethylene glycol dibenzoate[J].Chinese Journal of Bioprocess Engineering,2020,18(03):277-282.[doi:10.3969/j.issn.1672-3678.2020.03.002]
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酸性功能性离子液体催化合成二甘醇二苯甲酸酯()
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《生物加工过程》[ISSN:1672-3678/CN:32-1706/Q]

卷:
18
期数:
2020年03期
页码:
277-282
栏目:
出版日期:
2020-05-30

文章信息/Info

Title:
Acidic functional ionic liquid catalyzed synthesis of diethylene glycol dibenzoate
文章编号:
1672-3678(2020)03-0277-06
作者:
王莹曹震薛誉胡燚
南京工业大学 药学院,江苏 南京 211800
Author(s):
WANG YingCAO ZhenXUE YuHU Yi
School of Pharmaceutical Sciences,Nanjing Tech University,Nanjing 211800,China
关键词:
离子液体 二甘醇二苯甲酸酯 增塑剂 酯化反应
分类号:
TQ414
DOI:
10.3969/j.issn.1672-3678.2020.03.002
文献标志码:
A
摘要:
选用6种酸性功能化离子液体作为催化剂,催化苯甲酸和二甘醇酯化合成增塑剂二甘醇二苯甲酸酯(DEDB),通过实验考察反应温度、时间、催化剂种类及用量、原料投料比等工艺因素对合成收率的影响,确定了最佳反应条件:优选1-丁基磺酸-3-甲基咪唑对甲基苯磺酸盐([(CH2)4SO3HMIm]TS)为催化剂,反应温度160 ℃,时间4.0 h,苯甲酸与二甘醇的摩尔比为2.2:1,催化剂用量为二甘醇质量的10%,最终发现DEDB产率可达99.1%,且产品具有较高的品质。产物可以通过简单倾倒与离子液体催化剂分离,离子液体具有优异的重复使用性,使用10次后DEDB的产率仍有95.2%。
Abstract:
Six acid functional ionic liquids were selected as catalysts for the esterification of benzoic acid and diethylene glycol to synthesize plasticizer diethylene glycol dibenzoate(DEDB).The effects of reaction temperature,reaction time,amount of catalyst and raw materials ratio on the synthesis of DEBD were investigated. Under the optimized conditions:1-butylsulfonic acid-3-methylimidazole p-toluene sulfonate([(CH2)4SO3HMIm]TS)as catalyst with 10% of the mass of diethylene glycol,reaction temperature 160 ℃,reaction time 4.0 h,the molar ratio of n(benzoic acid)to n(diethylene glycol)2.2:1,the yield of DEDB could reach 99.1% with high quality.The product can be separated from ionic liquid by simple decantation.Ionic liquid catalyst had excellent reusability,and the yield of DEDB could be obtained in 95.2% even after 10 times of recycling.

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备注/Memo

备注/Memo:
收稿日期:2019-10-29修回日期:2019-12-11
基金项目:江苏高校“青蓝工程”; 国家自然科学基金面上项目(21676143)
作者简介:王莹(1996—),女,山东临沂人,硕士,研究方向:绿色有机合成化学; 胡燚(联系人),教授,E-mail:huyi@njtech.edu.cn
引文格式:王莹,曹震,薛誉,等.酸性功能性离子液体催化合成二甘醇二苯甲酸酯[J].生物加工过程,2020,18(3):277-282.
WANG Ying,CAO Zhen,XUE Yu,et al.Acidic functional ionic liquid catalyzed synthesis of diethylene glycol dibenzoate[J].Chin J Bioprocess Eng,2020,18(3):277-282..
更新日期/Last Update: 2020-05-30