离子液体对甲基丙烯醛氧化酯化反应的影响  

Effect of Ionic Liquid on the Oxidative Esterification From Methacrolein to Methyl Methacrylate

作　　者：李桂花[1] 张锁江[1] 李增喜[1] 李铭岫[2] 张香平[1] 

机构地区：[1]中国科学院过程工程研究所,北京100080 [2]河北师范大学化学学院,石家庄050091

出　　处：《高等学校化学学报》2004年第6期1137-1138,共2页Chemical Journal of Chinese Universities

基　　金：国家自然科学基金 (批准号 :2 0 2 760 73 );重质油加工国家重点实验室开放基金 (批准号 :2 0 0 3 -0 5 )资助

摘　　要：Ionic liquid（IL）,[bmim]PF6,was used in the reaction of one-step oxidative esterification from methacrolein to methyl methacrylate. It was found that ionic liquid not only increased the selectivity of methyl methacrylate but also inhibited its polymerization. The selectivity of methyl methacrylate was increased from 45% to 100% with ionic liquid. The experiment results showed that the content of ionic liquid had no effects on the selectivity of methyl methacrylate in a certain range of IL concentration,which indicated that ionic liquid could be used as a potential inhibitor of polymerization. [WT5HZ]Ionic liquid(IL),[bmim]PF_6,was used in the reaction of one-step oxidative esterification from methacrolein to methyl methacrylate. It was found that ionic liquid not only increased the selectivity of methyl methacrylate but also inhibited its polymerization. The selectivity of methyl methacrylate was increased from 45% to 100% with ionic liquid. The experiment results showed that the content of ionic liquid had no effects on the selectivity of methyl methacrylate in a certain range of IL concentration,which indicated that ionic liquid could be used as a potential inhibitor of polymerization. [WT5HZ]

关 键 词：离子液体 甲基丙烯酸甲酯 甲基丙烯醛 氧化酯化 阻聚剂 

分 类 号：TQ426[化学工程]