在固体超强酸S2O28-/SnO2-SiO2的催化下,以柠檬酸和正丁醇为原料,合成了标题化合物。实验结果表明,固体酸S2O82-/SnO2-SiO2催化合成柠檬酸三丁酯的最佳工艺条件为:催化剂用量占柠檬酸质量的2%,n(柠檬酸)∶n(正丁醇)=1∶4,回流温度120℃,反应时间4 h,酯化率96.2%,催化剂经重复使用5次,活性未见明显降低。产品经红外光谱、核磁进行定性分析,纯度经气相色谱分析>99.0%。 Under the catalysis of solid superacid S2O28- / SnO2-SiO2, citric acid and n-butanol were used as starting materials to synthesize the title compound. The experimental results show that the optimal conditions for the synthesis of tributyl citrate catalyzed by solid acid S2O82- / SnO2-SiO2 are as follows: the amount of catalyst is 2% of citric acid, n (n-butanol) = 1 : 4, the reflux temperature was 120 ℃, the reaction time was 4 h, the esterification rate was 96.2%, and the activity of the catalyst was not significantly reduced after repeated use for 5 times. Products by infrared spectroscopy, nuclear magnetic qualitative analysis, purity by gas chromatography analysis> 99.0%.