Highly selective synthesis for 4,4′-bisphenol F from phenol and formaldehyde catalyzed with [C_4mim][HSO_4] ionic liquid

查看全文 作　　者：Danfeng [1]Wang;Zhicheng [1]He;Zhimin [1]Wu;Ying [1]Tan;Yongfei [1]Li;Yuejin [1]Liu

机构地区：[1]College of Chemical Engineering, Xiangtan University

出　　处：《Chinese Journal of Chemical Engineering》索引2016年第24卷第9期,共5页

基　　金：Supported by the National Natural Science Foundation of China(21276217) 摘　　要：The effects of N-methylimidazole cation [Cnmim] with different alkyl chain lengths, the types of cations and anions of ionic liquids and the reaction parameters on the catalytic activity and the selectivity for 4,4′-bisphenol F were investigated. The hydrogen bonding between the hydroxyl of phenol and the C2-position hydrogen of imidazole moiety in hydrophilic imidazole-based ionic liquid has important influence on the selectivity for 4,4′-bisphenol F, and under the conditions of the molar ratio of phenol/[C4mim][HSO4] 1:1, reaction temperature65 °C and the theoretical molar ratio of phenol/formaldehyde 2:1, the selectivity for 4,4′-bisphenol F reached69.1%. Compared with the high phenol/formaldehyde ratio reported in literatures, the low molar ratio of phenol/formaldehyde and the low reaction temperature can greatly reduce energy consumption, and has important significance for industrial application. 关键词：4,4′-Bisphenol F PHENOL FORMALDEHYDE 1-Butyl-3-methylimidazolium hydrogen sulfate

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Highly selective synthesis for 4,4′-bisphenol F from phenol and formaldehyde catalyzed with [C_4mim][HSO_4] ionic liquid

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耦合文献(54)

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