| 可膨胀石墨催化合成柠檬酸三丁酯 |
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| 引用本文： | 王 勤,臧晓峰.可膨胀石墨催化合成柠檬酸三丁酯[J].化学工程师,2014(1):58-60. |
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| 作者姓名： | 王 勤 臧晓峰 |
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| 作者单位： | [1]常州夏青化工有限公司,江苏常州213101 [2]吉林省通化市东昌区环境监察支队,吉林通化134001 |
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| 摘 要： | 以可膨胀石墨为催化剂,柠檬酸和正丁醇为原料,催化合成柠檬酸三丁酯。考察了酸醇摩尔比、催化剂用量和反应时间等因素对柠檬酸酯化率的影响。最佳反应条件为:柠檬酸38.5g(0.2mol),n(柠檬酸)∶n(正丁醇)=1∶4.5,催化剂1.0g,反应时间4.5h,柠檬酸的酯化率达到99.3%。且催化剂可连续使用6次,催化活性无明显降低。
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| 关 键 词： | 柠檬酸酯 可膨胀石墨 催化 合成 |
Synthesis of tributyl citrate catalyzed by expandable graphite |
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| WANG Qin,ZANG Xiao-feng.Synthesis of tributyl citrate catalyzed by expandable graphite[J].Chemical Engineer,2014(1):58-60. |
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| Authors: | WANG Qin ZANG Xiao-feng |
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| Affiliation: | 2 ( 1.Changzhou Xiaqing Chemical Co. Ltd.,Changzhou 213101 ,China;2.Environmental Monitoring of Tonghua,Jilin City, Detachment Jilin, Tonghua 134001,China) |
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| Abstract: | Expandable graphite was used as a heterogeneous catalyst for synthesis of tribytyl citrate from citric acid and n-butanol. The effects of dosage of catalyst, ratio of the reactants and reaction time were investigated. The optimal reaction condition was as follows： citric acid 38.5g, molar ratio of citric acid to n-butal was 1：4.5, quantity of catalyst was 1.0g, reaction time 4.Sh,resulted in final conversion of 99.3%. The catalyst could be used 6 times and the catalytic ability didn＇t reduce. |
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| Keywords: | tributyl citrate expandable graphite catalysis synthesis |
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