钨磷酸掺混聚苯胺催化合成苯甲醛缩乙二醇  

SYNTHESIS OF BENZALDEHYDE GLYCOL ACETAL CATALYZED BY H_3PW_12O_40/PAn

作　　者：杨水金[1] 杜心贤[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：《精细石油化工》2004年第6期23-26,共4页Speciality Petrochemicals

基　　金：湖北省教育厅重点科研基金(2004D007);湖北师范学院优秀中青年创新科研基金资助项目

摘　　要：以自制的钨磷酸掺混聚苯胺(H3PW12O40/PAn)为催化剂,用苯甲醛和乙二醇为原料合成了苯甲醛缩乙二醇。适宜反应条件为:n(苯甲醛):n(乙二醇)=1:1.5,催化剂用量为反应物料总质量的0.8%,环己烷为带水剂,反应时间1.0h。苯甲醛缩乙二醇的收率可达85.7%。Benzaldehyde glycol acetal was synthesized from benzaldehyde and glycol in the presence of H3PW12O40/PAn. The factors influencing the synthesis were discussed and the optimal conditions were found as follows:molar ratio of benzaldehyde to glycol is 1 : 1. 5, the quantity of catalyst is e-qual to 0. 8% of feed stock, and the reaction time is 1. 0h with cyclohaxance as water-carrying agent. The yield of benzaldehyde glycol acetal could be up to 85. 7%.

关 键 词：苯甲醛 乙二醇 掺混 催化合成 聚苯胺 钨磷酸 带水剂 反应物 总质量 反应条件 

分 类 号：TE624[石油与天然气工程—油气加工工程] TQ225[化学工程—有机化工]