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[1]刘艳秋,张文飞,梁金花,等.碱土金属硫酸盐改性离子交换树脂催化合成醋酸丁酯[J].南京工业大学学报(自然科学版),2013,35(02):41-45.[doi:10.3969/j.issn.1671-7627.2013.02.008]
 LIU Yanqiu,ZHANG Wenfei,LIANG Jinhua,et al.Synthesis of butyl acetate over ion exchange resin modified by alkaline earth metal sulfate[J].Journal of NANJING TECH UNIVERSITY(NATURAL SCIENCE EDITION),2013,35(02):41-45.[doi:10.3969/j.issn.1671-7627.2013.02.008]
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碱土金属硫酸盐改性离子交换树脂催化合成醋酸丁酯()
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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:
35
期数:
2013年02期
页码:
41-45
栏目:
出版日期:
2013-03-20

文章信息/Info

Title:
Synthesis of butyl acetate over ion exchange resin modified by alkaline earth metal sulfate
文章编号:
1671-7627(2013)02-0041-05
作者:
刘艳秋1张文飞1梁金花2任晓乾1姜岷2
1. 南京工业大学 化学化工学院,江苏 南京 210009; 2. 南京工业大学 生物与制药工程学院,江苏 南京 210009
Author(s):
LIU Yanqiu1ZHANG Wenfei1LIANG Jinhua2REN Xiaoqian1JIANG Min2
1. College of Chemistry and Chemical Engineering,Nanjing University of Technology,Nanjing 210009,China; 2. College of Biotechnology and Pharmaceutical Engineering,Nanjing University of Technology,Nanjing 210009,China
关键词:
离子交换树脂 催化剂 碱土金属硫酸盐 醋酸丁酯
Keywords:
ion exchange resin catalyst alkaline earth metal sulfate butyl acetate
分类号:
TQ032.4
DOI:
10.3969/j.issn.1671-7627.2013.02.008
文献标志码:
A
摘要:
采用浸渍法对磺酸型阳离子交换树脂进行负载改性,在醋酸丁酯催化合成反应中考察离子交换树脂种类和金属盐种类对催化剂性能的影响,并运用紫外-可见漫反射光谱仪(UV-Vis)和傅里叶变换红外光谱仪(FT-IR)对改性树脂进行表征。结果表明:MgSO4和CaSO4改性的树脂催化性能较好。MgSO4改性后树脂骨架结构变化不大,特征紫外吸收峰发生红移,MgSO4与树脂的磺酸基团发生配位,形成新的催化活性中心。MgSO4的最佳负载量为5%,比未改性树脂的活性提高了30.1%。Fe3+不会影响改性后树脂的催化性能,且改性树脂重复使用5次后催化性能仍较稳定。
Abstract:
Modified sulfonic acid ion exchange resins were prepared by impregnation.The influences of the kind of resins and metal salts on the activity of catalyts for esterification were investigated.The prepared catalysts were characterized by ultraviolet-visible spectrophotometer(UV-Vis)and Fourier transform infrared spectometry(FT-IR).The results showed that the resin modified by Alkaline earth metal sulfate exhibited a better catalytic performance for esterification.Moreover,the skeleton structure of the modified resin had no change.It was observed that only a small red shift of the absorption intensity on the corresponding UV absorption peak took place.MgSO4 could complex with sulfonate group of rein and form the active center in the modified resin.5%MgSO4 modified resin was the best,and the activity increased 30.1% compared with that of the unmodified resin.The catalytic performances of the resin modified by MgSO4 were not affected by Fe3+.Furthermore,the modified resin showed a good repeatability after 5 times reuse.

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备注/Memo

备注/Memo:
收稿日期:2012-04-12
基金项目:国家重点基础研究计划(973计划)(2009CB724701); 材料化学工程国家重点实验室开放基金
作者简介:刘艳秋(1989—),女,江苏徐州人,硕士,主要研究方向为工业催化; 任晓乾(联系人),副教授,E-mail: xqren@njut.edu.cn..
更新日期/Last Update: 2013-03-31