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浓H_2SO_4改性活性炭催化甲苯与氯化苄的苄基化反应

Concentrated H_2SO_4-modified activated carbon catalytic toluene with benzyl chloride benzyl reaction
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摘要 以活性炭负载浓硫酸作为固体催化剂,以甲苯与氯化苄为原料进行合成反应,研究了反应温度、反应时间、原料配比和催化剂用量对反应的影响,确定了最佳工艺条件,即月(甲苯):n(氯化苄)=3:1,反应温度100℃,反应时间12 h,催化剂用量7.9%(相对于氯化苄),邻苄基甲苯产率为31.1%:n(甲苯):n(氯化苄)=3:1,反应温度90℃,反应时间12 h,催化剂用量10.5%相对于绿化苄),对苄基甲苯产率为41.8%;n(甲苯):n(氯化苄)=3:1,反应温度90℃,反应时间7h,催化剂用量7.9%(相对于绿化苄),间苄基甲苯产率为3.4%。 Activated Carbon Loaded with concentrated sulfuric acid as a solid catalyst, toluene and benzyl chloride as raw materials for the synthesis reaction of reaction temperature, reaction time, the ratio of raw materials and the amount of catalyst on the reaction to determine the optimum conditions, ie n(toluene): n(benzyl chloride) = 3:1, reaction temperature 100 ℃, reaction time 12 h, the amount of catalyst 7.9 % (relative to the green benzyl), o-benzyl toluene yield of 31.1%; n(toluene): n(benzyl chloride) = 3:1, reaction temperature 90 ℃, reaction time 12 h, 10.5 % of the amount of catalyst (as opposed to green benzyl), benzyl toluene yield close to 41.8 %; n(toluene): n(chloridebenzyl) = 3:1, reaction temperature 90 ℃, reaction time 7 h, the amount of catalyst 7.9 % (relative to the green benzyl)-benzyl toluene yield of 3.4 %.
出处 《计算机与应用化学》 CAS CSCD 北大核心 2014年第4期481-484,共4页 Computers and Applied Chemistry
基金 国家自然科学基金资助项目(21162021,20962016) 教育部“新世纪优秀人才支持计划资助”(NCET-09-0860) 银川能源学院科研项目资助(2013-KY-Y-04)
关键词 甲苯 改性活性炭 催化 toluene modified activated carbon catalytic
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参考文献15

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