磺化改性石油沥青催化苯酚与叔丁醇的反应  

Catalytic Reaction of Phenol and Tert-butanol With Sulfonated Asphalt as Catalyst

作　　者：张康龙[1] 祁晓津[1] 刘万毅[2] 

机构地区：[1]中国矿业大学银川学院化工系,宁夏银川750011 [2]宁夏大学化学化工学院,宁夏银川750021

出　　处：《当代化工》2011年第7期673-675,共3页Contemporary Chemical Industry

摘　　要：以磺化改性石油沥青作为一种新型、廉价高效且对环境友好的固体酸催化剂,催化苯酚与叔丁醇的烷基化反应。考察了其催化活性,并系统的研究了酚醇摩尔比、催化剂用量、反应温度、反应时间诸因素对苯酚转化率、产品选择性和催化剂重复使用性的影响。确定了最佳反应条件为T=70℃,t=360 min,n(TBA)/n(Phenol)=2∶1,催化剂用量为0.6 g,在此条件下,苯酚的转化率达到75.8%。Asphalt modified by sulfonation as a new,cheap,efficient and environment-friendly solid acid catalyst was applied in alkylation of phenol and tert-butanol.Catalytic activity was investigated,and effect of phenolic/alcohol molar ratio,catalyst amount,reaction temperature,reaction time,etc.on phenol conversion,product selectivity and reusability of the catalyst was studied.The optimum reaction conditions were determined as follows： T = 70 ℃,t = 360 min,n（TBA）/ n（Phenol）=2︰1,catalyst dosage 0.6 g.Under these conditions,phenol conversion rate can reach 75.8%.

关 键 词：改性石油沥青 催化 合成 选择性 

分 类 号：TQ203.2[化学工程—有机化工]