混合C_9芳烃与异丁烯合成西藏麝香的工艺研究  

Study on Synthesis 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：《化学与生物工程》2004年第3期37-38,共2页Chemistry & Bioengineering

摘　　要：以混合C9芳烃(169-178℃馏分)为原料,其中含连三甲苯40％-50％,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。本方法不但具 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 solvent (169-17℃)--mixed C9 aromatic hydrocarbon, is alkylated by isobutene in presence of aluminium trichloride as catalyst to synthesize 5-tert-butyl-l ,2,3-trimeth-yl benzene intermediate product. The intermediate , 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 并丁烯 西藏麝香 

分 类 号：TQ246.1[化学工程—有机化工] TQ655