硅钨钼酸掺杂聚苯胺催化合成环己酮1，2-丙二醇缩酮  

Catalytic Synthesis of Cyclohexanone 1,2-Propanediol Ketai over H_4SiW_6Mo_6O_(40)/PAn

作　　者：杨水金[1] 童文龙[1] 陈迪海[1] 孙聚堂[2] 

机构地区：[1]湖北师范学院,湖北黄石435002 [2]武汉大学,湖北武汉430072

出　　处：《稀有金属材料与工程》2005年第12期1957-1960,共4页Rare Metal Materials and Engineering

基　　金：2002年湖北省教育厅重点科研项目(2002A00008)

摘　　要：首次采用浸渍法制备了硅钨钼酸掺杂聚苯胺催化剂H_4SiW_6Mo_6O_(40)／PAn。以环己酮和1,2-丙二醇为原料合成环己酮1,20丙二醇缩酮。探讨了硅钨钼酸掺杂聚苯胺催化剂对缩酮反应的催化活性,较系统地研究了原料量比,催化剂用量,反应时间诸因素对产品收率的影响。实验表明：硅钨钼酸掺杂聚苯胺是合成环己酮1,2-丙二醇缩酮的良好催化剂,在n(环己酮)：n(1,2-丙二醇)=1：1．7,催化剂用量为反应物料总质量的1.0％,环已烷为带水剂,反应时间1.0 h的优化条件下,环己酮1,2-丙二醇缩酮的收率可达84.6％。A new environmental friendly catalyst, H4SiW6Mo6040/PAn was prepared. Cyclohexanone 1,2-propanediol ketal was synthesized from cyclohexanone and 1,2-propanediol in the presence of H4SiW6Mo6O40/PAn. The factors influencing the synthesis were discussed and the optimum conditions were found out. Molar ratio of cyclohexanone to 1,2-propanediol is 1：1.7, catalyst content is equal to 1.0% feed stock, and the reaction time is 1.0 h. H4SiW6Mo6O40/PAn is an excellent catalyst for synthesizing cyclohexanone 1,2-propanediol ketal and its yield can reach over 84.6%.

关 键 词：环己酮1 2-丙二醇缩酮 硅钨钼酸 聚苯胺 缩酮 催化剂 

分 类 号：O624.42[理学—有机化学]