[1]白漫,齐景娟,朱思雨,等.离子液体催化甘油合成三醋酸甘油酯[J].华侨大学学报(自然科学版),2017,38(3):356-361.[doi:10.11830/ISSN.1000-5013.201703013]
　BAI Man,QI Jingjuan,ZHU Siyu,et al.Synthesis of Triacetin Catalyzed by Ionic Liquid With Glycerol[J].Journal of Huaqiao University(Natural Science),2017,38(3):356-361.[doi:10.11830/ISSN.1000-5013.201703013]
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离子液体催化甘油合成三醋酸甘油酯()
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《华侨大学学报（自然科学版）》[ISSN:1000-5013/CN:35-1079/N]

卷:
第38卷
期数:
2017年第3期
页码:
356-361
栏目:
出版日期:
2017-05-20

文章信息/Info

Title:
Synthesis of Triacetin Catalyzed by Ionic Liquid With Glycerol
文章编号:
1000-5013(2017)03-0356-06
作者:
白漫;  齐景娟;  朱思雨;  林金清
华侨大学 材料科学与工程学院, 福建 厦门 361021
Author(s):
BAI Man;  QI Jingjuan;  ZHU Siyu;  LIN Jinqing
College of Materials Science and Engineering, Huaqiao University, Xiamen 361021, China
关键词:
三醋酸甘油酯;  正-丙基磺酸-三乙基对甲苯磺酸铵;  甘油;  酰化反应;  催化剂
Keywords:
triacetin;  ［Et3N(CH2)3SO3H］-［p-CH3(C6H4)SO3］;  glycerol;  acylation reaction;  catalyst
分类号:
TQ645.9
DOI:
10.11830/ISSN.1000-5013.201703013
文献标志码:
A
摘要:
采用两步法合成离子液体——正-丙基磺酸-三乙基对甲苯磺酸铵,并用FT-IR,1H NMR和13C NMR对其结构进行表征.以该离子液体为催化剂,考察反应时间、反应温度、物料配比和离子液体用量对纯甘油与醋酐合成三醋酸甘油酯的产率的影响规律.结果表明:当反应温度为100 ℃,反应时间为3 h,n(甘油)∶n(醋酐)∶n(离子液体)=1.0∶4.0∶0.1时,三醋酸甘油酯的产率最高可达到96%.用甲苯萃取三醋酸甘油酯,回收得到的离子液体循环使用3次,三醋酸甘油酯的产率没有明显下降,说明离子液体的稳定性和循环使用性较好,且催化合成生物柴油时,离子液体的用量正好适用于继续催化副产物甘油与醋酐发生酰化反应生成三醋酸甘油酯.
Abstract:
Ionic liquid ［Et3N(CH2)3SO3H］-［p-CH3(C6H4)SO3］ was prepared by two-step method, and its structure was characterized by FT-IR, 1H NMR and 13C NMR. The effects of reaction time, reaction temperature, molar ratio of acetic anhydride to glycerol, and catalyst dosage on the yield of triacetin were investigated using this ionic liquid as catalyst. The results showed that, the yield of triacetin could reach 96% under the conditions of molar ratio of n(glycerol)∶n(acetic anhydride)∶n(ionic liquid)=1.0∶4.0∶0.1, reaction temperature 100 ℃, and reaction time 3 h. The triacetin was extracted by toluene, and the yield had no obvious reduction when the catalyst recovered and reused for 3 times. The results indicate that the ionic liquid is stable and reusable well, and the dosage used in biodiesel synthesis is just suitable to catalyze by product glycerol, with acetic anhydride to generate triacetin.

参考文献/References:

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备注/Memo

备注/Memo:
收稿日期: 2016-09-12
通信作者: 林金清(1963-),男,教授,博士,主要从事绿色催化的研究.E-mail:linlab@hqu.edu.cn.
基金项目: 国家自然科学基金资助项目(21246008); 福建省自然科学基金资助项目(2016J01060); 华侨大学研究生科研创新能力培育计划资助项目(1400202022)
更新日期/Last Update: 2017-05-20