节点文献
SO82-/ZrO2SiO2催化合成乳酸正丁酯
Synthesis of n-butyl lactate over S2O82-/ZrO2-SiO2 solid acid
【摘要】 对以S2O2-8/ZrO2 SiO2为催化剂催化合成乳酸正丁酯的方法进行了研究,得出其最佳工艺条件为:催化剂原料配比n(Zr)∶n(Si)=1∶15,醇酸物质的量的比为4 5∶1,催化剂用量1 0g,乳酸用量为0 083mol的情况下,反应时间为3 0h,酯化率可达97 3%。催化剂可重复使用6次以上。
【Abstract】 Synthesis of n-butyl lactate over S2O2-8/ZrO2-SiO2 solid acid catalyst was studied.The results showed that the optimum condition was as follows :n(Zr)∶n(Si) = 1∶15;n(n-butanol)∶n(lactic acid)=4.5∶1; (catalyst)=1.0 g when n (lactic acid)=0.083 mol;reaction time 3 h.Esterification rate of 97.7% was obtained.The catalyst can be used repeatedly for over six times.
- 【文献出处】 工业催化 ,Industrial Catalysis , 编辑部邮箱 ,2004年09期
- 【分类号】TQ223.24
- 【被引频次】2
- 【下载频次】66