混合二甲苯合成均三甲苯工艺的研究  

Study on a New Technology of Synthesis of 1,3,5-Trimethylbenzene from Xylene

作　　者：张卫江[1] 张雪梅[1] 朱璟[1] 王凤东[1] 张军保[2] 简春贵[2] 

机构地区：[1]天津大学化学工程研究所,天津300072 [2]天津天大天久科技股份有限公司,天津300072

出　　处：《化工进展》2001年第10期26-31,共6页Chemical Industry and Engineering Progress

摘　　要：研究了以混合二甲苯为原料 ,采用液相烷基化法合成均三甲苯的新工艺。对反应机理进行了探讨 ,开发了一种经济合理的烷基化工艺 ,并找到了其最佳工艺条件 ,在此条件下反应液中均三甲苯的含量达到 14%左右。该工艺具有原料价廉易得、产品含量较高的特点 ,满足工业化的要求 。A new technology of synthesis of 1,3,5 trimethylbenzene from xylene has been studied, and the mechanism of alkylation is discussed.Finally,the best technological conditions are found,under which the content of 1,3,5-trimethylbenzene in reaction liquid reaches 14% or so.The technology is characterized with cheap raw material and high content of the product in reaction liquid.Therefore,it can meet the requirements of industrial production and is quite promising in the futare.

关 键 词：混合二甲苯 均三甲苯 烷基化 歧化 

分 类 号：TQ241.15[化学工程—有机化工]