CAJ | 학술논문

采用对甲苯磺酸和吡啶盐类离子液体形成的双组分催化剂催化苯和环己烯合成环己基苯，该工艺具有反应条件温和、易操作、无污染和收率高的特点。主要考察了离子液体种类、反应时间、反应温度、催化剂用量、反应物配比及催化剂的循环使用次数等因素对反应收率的影响。通过单因素优选法确定了最佳反应工艺：离子液体为N-甲基吡啶硫酸甲基盐、反应时间40 min、反应温度为60℃、双组份催化剂(对甲苯磺酸/(N-甲基吡啶硫酸甲基盐(w/w)=1：1)用量为反应底物的7.4%(wt)、苯和环己烯的质量比为12.5：1、催化剂循环5次以上仍然具有很高的活性。在最佳反应工艺条件下，环己基苯的收率为99.5%，气相分析纯度为99.9%。
채용대갑분광산화필정염류리자액체형성적쌍조분최화제최화분화배기희합성배기기분，해공예구유반응조건온화、역조작、무오염화수솔고적특점。주요고찰료리자액체충류、반응시간、반응온도、최화제용량、반응물배비급최화제적순배사용차수등인소대반응수솔적영향。통과단인소우선법학정료최가반응공예：리자액체위N-갑기필정류산갑기염、반응시간40 min、반응온도위60℃、쌍조빈최화제(대갑분광산/(N-갑기필정류산갑기염(w/w)=1：1)용량위반응저물적7.4%(wt)、분화배기희적질량비위12.5：1、최화제순배5차이상잉연구유흔고적활성。재최가반응공예조건하，배기기분적수솔위99.5%，기상분석순도위99.9%。
Cyclohexylbenzene was prepared by alkylation of benzene and cyclohexene using pyridine-based ionic liquid and p-toluenesulfonic acid systems. This process has the advantages of mild reaction conditions, easy operation, no pollution and high yield. The effects of ionic liquid types, reaction time and temperature, catalyst and reactant weight ratios and catalyst reusing on the yield of cyclohexylbenzene were investigated and the process was optimized. The results show that the system has the best performance under following conditions:ionic liquid:N-methylpyridinium methylsulfate, reaction time:40 min, reaction temperature:60℃, m(catalyst)/m(all substrate)=7.4%, m(benzene)/m(cyclohexene)=12.5:1. The catalyst maintained good activity after being reused for 5 times. Under the optimum conditions, the yield of ethyl cyclohexene is 99.5%and the purity is 99.9%.