活性炭负载磷钨酸催化合成丁醛1,2-丙二醇缩醛的正交试验分析  

Orthogonal Test Analysis for Catalytic Synthesis of Butyraldehyde 1,2-Propanediol Acetal with H_3PW_(12)O_(40) /C

作　　者：吕宝兰[1] 施少敏[1] 杨水金[1] 

机构地区：[1]湖北师范学院化学与环境工程系,湖北黄石435002

出　　处：《稀有金属》2005年第2期191-193,共3页Chinese Journal of Rare Metals

基　　金：湖北省教育厅重点科研基金 (B2 0 0 5 2 2 0 0 4)资助项目

摘　　要：报道了活性炭负载磷钨酸催化剂H3PW1 2 O4 0 /C的制备,采用正交试验探讨了合成丁醛1,2 丙二醇缩醛的影响因素。实验结果表明,对丁醛1,2 丙二醇缩醛的收率影响最大的是醛醇物质的量比,其次是反应时间和催化剂用量。在n(丁醛)∶n(1,2 丙二醇) =1∶1.5 ,催化剂的用量占反应物料总质量的1.0 % ,反应时间为1.5h条件下,丁醛1,2 丙二醇缩醛的收率可达88.3 %。A novel catalyst, H_3PW_ 12 O_ 40 /C was prepared. Butyraldehyde 1, 2-propanediol acetal was synthesized from butyraldehyde and 1,2-propanediol by using H_3PW_ 12 O_ 40 /C as catalyst according to orthogonal test method. Under the reaction condition of the amount of butyraldehyde is 0.20 molar, and the molar ratio of butyraldehyde to 1,2-propanediol is 1∶1 5. The dosage of catalyst is equal to 1 0% of feed stocks, and the reaction time is 1.5 h, and yield of butyraldehyde 1,2-propanediol acetal can reach 88.3%.

关 键 词：丁醛1 2-丙二醇缩醛 活性炭负载磷钨酸 催化 正交试验法 缩醛反应 

分 类 号：TQ423.26[化学工程] TQ426.91