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活性炭负载钛酸四丁酯催化合成二乙二醇二苯甲酸酯(PDF)

《南京林业大学学报(自然科学版)》[ISSN:1000-2006/CN:32-1161/S]

Issue:
2015年02期
Page:
121-126
Column:
研究论文
publishdate:
2015-04-01

Article Info:/Info

Title:
Synthesis of diethylene glycol dibenzoate catalyzed by butyl titanate supported on activated carbon
Article ID:
1000-2006(2015)02-0121-06
Author(s):
CHEN Yanqing ZOU Bin DONG Lin LYU Chang CHEN Jianmin ZHU Xinbao*
College of Chemical Engineering, Nanjing Forest University, Nanjing 210037, China
Keywords:
butyl titanate supported on activated carbon diethylene glycol benzoic acid diethylene glycol dibenzoate
Classification number :
TQ225.2
DOI:
10.3969/j.issn.1000-2006.2015.02.021
Document Code:
A
Abstract:
Diethylene glycol dibenzoate(DEDB)was synthesized by catalyzing with n-butyl titanate supported on activated carbon and using n-butyl ether as the water carrier. These catalysts were characterized by BET and ESR.Effects of the ratio of substrates, amount of water carrier, and reaction temperature on esterification were examined,and the suitable esterification conditions was determined as follows:n(DEG)/n(BA)=0.5, 20%(wt)of water carrier and 1.5%(wt)of catalyst based on BA, 200 ℃ of reaction temperature and 6 h of reaction time. Meanwhile, the catalyst could be reused for 3 times, and showed good stability. The structure of product was characterized by IR and 1H-NMR.

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Last Update: 2015-03-31