|本期目录/Table of Contents|

[1]陈曦,王俊,吕效平,等.超声波气升式内环流反应器合成乙酸苄酯[J].南京工业大学学报(自然科学版),2011,33(03):49-52.
 CHEN Xi,WANG Jun,L Xiaoping,et al.Preparation of benzyl acetate on ultrasonic airlift loop reactor[J].Journal of NANJING TECH UNIVERSITY(NATURAL SCIENCE EDITION),2011,33(03):49-52.
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超声波气升式内环流反应器合成乙酸苄酯()
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《南京工业大学学报(自然科学版)》[ISSN:1671-7627/CN:32-1670/N]

卷:
33
期数:
2011年03期
页码:
49-52
栏目:
出版日期:
2011-05-20

文章信息/Info

Title:
Preparation of benzyl acetate on ultrasonic airlift loop reactor
文章编号:
1671-7627(2011)03-0049-04
作者:
陈曦王俊吕效平韩萍芳
南京工业大学 化学化工学院,江苏南京210009
Author(s):
CHEN Xi WANG Jun L Xiaoping HAN Pingfang
College of Chemistry and Chemical Engineering,Nanjing University of Technology,Nanjing 210009, China
关键词:
 超声波乙酸苄酯气升式内环流环流器苯甲醇
Keywords:
ultrasound hexyl acetate airlift loop reactor benzyl alcohol
分类号:
TB559
文献标志码:
A
摘要:
 以乙酸、苯甲醇为原料,浓硫酸为催化剂,在常温下用超声合成乙酸苄酯。实验考察有无超声、超声声强、不同通气量、不同气体性质及不同反应器等参数对催化合成乙酸苄酯的影响。实验结果表明:在超声频率为10kHz条件下,超声声强为1.0W/cm2,反应体系中空气流速为0.3L/min时,合成乙酸苄酯的酯化率最佳,酯化率达到65.8%。实验中采用的超声波气升式内环流反应器较普通的气升式内环流反应器具有较好的优越性,合成方法反应条件温和,操作简单且反应速度很快。
Abstract:
Abstract:Acetic acid, hexyl alcohol and concentrated sulfuric acid were used for the preparation of hexyl acetate by ultrasound at the ambient temperature. Ultrasonic intensity, flow rate, gas property, and reactor type were investigated. The optimum conditions were as follows: the single frequency of 10kHz, ultrasound intensity of 1.0W/cm2 and air flow rate of 0.3L/min. The results showed that the ultrasound could enhance the esterification of the reaction and the yield of esterification was 65.8%. The reaction on airlift loop reactor with ultrasound was better than that without ultrasound. The method had advantages of mild condition, simple operation and high reaction rate.

参考文献/References:

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备注/Memo

备注/Memo:
收稿日期:2010-06-10
基金项目:南京工业大学博士论文创新基金资助项目(BSCX200804)
作者简介:陈曦(1984—),男,江苏溧阳人,博士生,主要研究方向为超声有机化学;吕效平(联系人),教授,E-mail:xplu@njut.edu.cn.
更新日期/Last Update: