混合C_9芳烃与异丁烯合成西藏麝香  

Study on Synthesization of Musk Tibetene from Mixed C_9 Aromatic Hydrocarbon and Isobutene

作　　者：刘杰[1] 李杰[1] 李敏[1] 

机构地区：[1]锦州石化精细化工有限公司,辽宁锦州121001

出　　处：《当代化工》2004年第5期273-275,共3页Contemporary Chemical Industry

摘　　要：以催化重整C9芳烃分离装置分离出均三甲苯、偏三甲苯后的副产品重组分溶剂(16 9～ 178℃馏分 )混合C9芳烃为原料 ,其中 ,连三甲苯的质量分数为 4 0 %～ 5 0 % ,以三氯化铝为催化剂 ,与异丁烯进行烷基化反应 ,合成出 5 叔丁基 1,2 ,3 三甲基苯中间体 ,经蒸馏后 ,用混酸进行硝化反应 ,得到西藏麝香。此方法具有工艺路线简单、生产成本低的特点 ,同时 ,也解决了富集连三甲苯的利用问题。In this process , the heavy fraction selvent (169～178 ℃) mixed C_9 aromatic hydrocarbon, namely, the Qy-product of Mesitylene and Pseudocumene which are separated from C_9 aromatic hydrocarbon catalytic reforming separation facility , will be the feedstock which is alkylated by isobutene in presence of aluminium trichloride as catalyst to synthesize 5-tert-butyl-1,2,3 trimethyl benzene intermediate product which , after distillation , is nitrated with nitro-sulfuric acid to obtain musk tibetene. This method is low cost and simple in design , and the pregnant hemimellitene is fully used in this process.

关 键 词：C9芳烃 异丁烯 西藏麝香 

分 类 号：TQ655[化学工程—精细化工]