TiSiW_(12)O_(40)/TiO_2催化合成丁酮乙二醇缩酮  

Catalytic Synthesis of Butanone Glycol Ketal by TiSiW_(12)O_(40) /TiO_2

作　　者：凌强[1] 杨水金[1] 白爱民[1] 郑静[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2期15-17,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TiSiW12 O40 /TiO2 为多相催化剂 ,通过丁酮和乙二醇反应合成了丁酮乙二醇缩酮 ,探讨了TiSiW12 O40 /TiO2 对缩酮反应的催化活性 ,并研究了酮醇摩尔比、催化剂用量 ,反应时间诸因素对产品收率的影响。实验表明 :TiSiW12 O40 /TiO2 是合成丁酮乙二醇缩酮的良好催化剂 ,在n (酮 )∶n (醇 )为 1∶2 .0、催化剂用量为反应物料总质量的 0 .5 %、环己烷为带水剂、反应时间2 .0h的优化条件下 ,丁酮乙二醇缩酮的收率可达 6 6 .1%。Butanone glycol ketal was synthesized from butanone and ethylene glycol in the presence of TiSiW 12 O 40 /TiO 2. The factors influencing the synthesis were discussed and the optimum conditions were found out. The optimum conditions: molar ratio of butanone to ethylene glycol was 1∶2.0, the amount of catalyst was 0.5%(based on total quantity of feed stock), the reaction temperature was 80～99 ℃, and the reaction time was 2.0 h. TiSiW 12 O 40 /TiO 2 was an excellent catalyst for synthesizing butanone glycol ketal and its yield can reach over 66.1%.

关 键 词：催化合成 丁酮乙二醇缩酮 杂多酸盐 催化剂 缩酮反应 TISIW12O40/TIO2 

分 类 号：TQ224.2[化学工程—有机化工]