t-BAMBP的催化合成及精馏纯化研究  

Catalytic Synthesis of t-BAMBP and Its Purification through Distillation

作　　者：阳卫军[1] 刘和辉[1] 罗喜生[1] 郭灿城[1] 

机构地区：[1]湖南大学化学化工学院,湖南长沙410082

出　　处：《湖南大学学报（自然科学版）》2012年第5期69-72,共4页Journal of Hunan University:Natural Sciences

摘　　要：采用4-叔丁基苯酚与苯乙烯为原料,在磷酸的催化下合成了4-叔丁基-2-(α-甲基苄基)苯酚(t-BAMBP).适宜的合成反应条件为反应温度150℃,反应时间150min,反应物料4-叔丁基苯酚与苯乙烯之摩尔比为1∶1.8,催化剂用量为总反应物料量的1.5%.在该工艺条件下,4-叔丁基苯酚的转化率为81.29%,t-BAMBP的产率为81.04%.采用减压精馏的方法提纯t-BAMBP,确定了t-BAMBP产品的馏出温度为156～157℃,绝对压力为400Pa.t-BAMBP的纯度达到98.79%.分析了t-BAMBP合成过程中的脱叔丁基反应机理,推测了副产物的生成途径.4-tert-butyl-2- （a-methylbenzyl） phenol （t-BAMBP） was synthesized from tert-butylphenol and styrene catalyzed by concentrated phosphoric acid. The optimal synthesis conditions were as follows： a reaction temperature of 150 ℃, a reaction time of 150 min, a reactant ratio of 1 ：1.8, and a catalyst dos- age equal to 1.5% of the feed stock. Under such conditions, the conversion percent of tert-butyl phenol was 81.29%, and the yield of t-BAMBP was 81.04%. The synthetic products were separated and purified by vacuum distillation. The proper distillation temperature was 156-157℃, and the absolute pressure was 400Pa. The purity of t-BAMBP was higher than 98.79℃. The tert-hutyl group removing mechanism in the t-BAMBP synthesis process was analyzed, and the by-products forming routes were deduced.

关 键 词：t-BAMBP 合成 精馏 萃取 

分 类 号：O643.32[理学—物理化学]