摘要
研究了在盐酸三乙胺与氯化铁组成的离子液体体系中 ,通过氯化氢改性增强离子液体的酸性 ,催化苯与 1 己烯烷基化反应。对离子液体组成及氯化氢通入时间对反应转化率和选择性的影响进行了考察 ,结果表明 ,该离子液体体系酸性可以通过以上 2个因素进行调节 ,从而控制反应结果。离子液体中FeCl3 摩尔分数为 6 6 7%时 ,未经HCl改性时对反应无催化作用 ,而加入HCl改性后 ,反应 1h 1 己烯转化率可达 10 0 % ,单烷基选择性为 10 0 %。对反应温度、苯烯摩尔比等条件对反应的影响进行了研究。
Alkylation reactions of benzene with 1-hexene catalyzed by ferric chloride in a new ionic liquid system containing triethylamine hydrochloride modified by HCl has been studied. The influences of the constitution of the ionic liquid system, the amount of HCl, temperature and mole ratio of bezene to 1-hexene on the conversion and selectivity of the alkylation reactions have been investigated. It was found that the acidity of this ionic liquid system depends on the constitution of the ionic liquid system and the amount of HCl.The ionic liquid system with x(FeCl 3)= 66.7% is of no catalytic activity to the reaction without HCl modifying. But the conversion of 1-hexene can reach 100% with the product′s monoalkylation selectivity being 100% in 1 h when the ionic liquid system was modified by HCl.
出处
《应用化学》
CAS
CSCD
北大核心
2003年第9期829-832,共4页
Chinese Journal of Applied Chemistry
基金
国家重点基础项目 (G2 0 0 0 0 48)
上海科技发展基金 ( 0 1JC14 0 0 2 )资助
关键词
离子液体
氯化铁
盐酸三乙胺
烷基化
催化
ionic liquid,ferric chloride,triethylamine hydrochloride,alkylation,catalysis
