TiSiW_(12)O_(40)/TiO_2催化合成己二酸二丁酯  

Catalytic Synthesis of Dibutyl Adipate by TiSiW_(12)O_(40)/TiO_2

作　　者：宋作良[1] 杨水金[1] 

机构地区：[1]湖北师范学院化学与环境工程系,黄石435002

出　　处：《精细石油化工进展》2003年第4期44-46,共3页Advances in Fine Petrochemicals

基　　金：湖北省教育厅重点科研基金 (No .2 0 0 2A0 0 0 0 8)资助项目

摘　　要：以固载杂多酸盐TiSiW1 2 O4 0 /TiO2 为多相催化剂 ,己二酸与正丁醇反应合成了己二酸二丁酯。通过正交试验探讨了反应物配比、催化剂用量及反应时间对产物收率的影响。试验结果表明 ,TiSiW1 2 O4 0 /TiO2 对合成己二酸二丁酯具有良好的催化活性。在 n(正丁醇 )∶n(己二酸 ) =3 .5∶1、催化剂用量为反应物料总量的 1.0 %、反应时间 1.5h、反应温度 86～ 12 1℃的条件下 ,己二酸二丁酯收率可达 75 .1%。Dibutyl adipate was synthesized from n-butanol and adipic acid using TiSiW 12 O 40 /TiO 2 as catalyst. The factors influencing the synthesis were discussed by orthogonal experiments and the optimum conditions were found out. The results indicated that TiSiW 12 O 40 /TiO 2 was an excellent catalyst for synthesizing dibutyl adipate. The optimum conditions were: molar ratio of n-butanol to adipic acid 3.5∶1, amount of catalyst 1.0%(based on total quantity of feed stock), reaction temperature 86～121 ℃, and reaction time 1.5 h. The yield of dibutyl adipate could reach over 75.1% under the optimum conditions.

关 键 词：TISIW12O40/TIO2 催化合成 己二酸二丁酯 酯化反应 

分 类 号：TQ414[化学工程]