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磺化硅胶催化合成柠檬酸三丁酯的研究
引用本文:张宏,李冰,张千万,刘万毅.磺化硅胶催化合成柠檬酸三丁酯的研究[J].工业催化,2009,17(3):60-63.
作者姓名:张宏  李冰  张千万  刘万毅
作者单位:1.宁夏能源化工重点实验室 宁夏大学化学化工学院,宁夏 银川 750021; ;2.宁夏职业技术学院,宁夏 银川 750002
基金项目:国家重点基础研究发展规划(973计划),宁夏自然科学基金 
摘    要:以磺化硅胶为催化剂,以柠檬酸和正丁醇为原料合成柠檬酸三丁酯。 考察了磺化硅胶催化剂用量、原料配比和回流时间对反应的影响。最佳工艺条件:催化剂用量为柠檬酸质量的1.30%,n(柠檬酸)∶n(正丁醇)=1∶3.2,回流时间3 h,反应温度(135~140) ℃,柠檬酸三丁酯的酯化率为98.7%。该催化剂制备简单,催化活性好,后处理简便。

关 键 词:有机合成化学  柠檬酸  正丁醇  磺化硅胶催化剂  柠檬酸三丁酯
  

Synthesis of tributyl citrate catalyzed by silicasulfuric acid
ZHANG Hong,LI Bing,ZHANG Qianwan,LIU Wanyi.Synthesis of tributyl citrate catalyzed by silicasulfuric acid[J].Industrial Catalysis,2009,17(3):60-63.
Authors:ZHANG Hong  LI Bing  ZHANG Qianwan  LIU Wanyi
Affiliation:ZHANG Hong, LI Bing, ZHANG Qianwan, LIU Wanyi( 1. Ningxia Key Laboratory of Energy Sources & Chemical Engineering, College of Chemistry and Chmical Engineering, Ningxia University, Yinchuan 750021, Ningxia, China; 2. Ningxia Technology College, Yinchuan 750002, Ningxia, China )
Abstract:Silicasulfuric acid(SSA) was used as the catalyst for synthesis of tributyl citrate from citric acid and tributylalcohol. Effects of catalyst dosage, molar ratio of the reactants and reaction time were investigated. Tributyl citrate yield of 98.7% was attained under the optimal reaction condition as follows: citric acid 0.04 mol, n-butylalcohol/citric acid molar ratio 3.2: 1, catalyst dosage = 1.3% of the mass of citric acid, reaction time 3 h, reaction temperature ( 135 - 140) ℃.
Keywords:organic synthesis chemistry  citric acid  n-butylalcohol  silicasulfuric acid catalyst  tributyl citrate
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