WO_3/Al_2O_3催化氧化环己酮合成ε-己内酯的研究  

Study on Oxidation of Cyclohexanone to ε-caprolactone over WO_3/Al_2O_3 Catalyst

作　　者：欧华强[1,2] 张光旭[1] 胡昌林[1] 程东恩[1] 胡张雁[1] 

机构地区：[1]武汉理工大学化学工程学院,武汉430070 [2]中国天辰工程有限公司,天津300400

出　　处：《武汉理工大学学报》2011年第3期46-49,86,共5页Journal of Wuhan University of Technology

基　　金：武汉理工大学自主创新研究基金(2010-ZY-HG-004);浙江省科技孵化项目基金(2008E3008)

摘　　要：采用混烧法制备了WO3/γ-Al2O3催化剂,用于催化反应精馏两步合成ε-己内酯。考察了反应温度、反应时间、填料塔高、催化剂用量和原料用量对合成反应的影响。结果表明,两步反应温度分别为60℃和50℃、反应时间分别为4h和5 h、填料塔高为400 mm、m(WO3/γ-Al2O3)∶m(环己酮)=0.1、m(丙酸)∶m(环己酮)=7.3、m(30%H2O2)∶m(环己酮)=2.7时,过氧化氢的转化率和ε-己内酯的收率分别可达到95.8%和71.2%。The WO3/γ-Al2O3 catalyst for two-step synthesis of ε-caprolactone through catalytic reactive distillation was prepared by co-calcination method.The effects of various reaction conditions such as reaction temperature,reaction time,packed tower height,amount of catalyst and raw material consumption were investigated.Under the optimum conditions,the conversion of hydrogen peroxide was 95.8%,yield to ε-caprolactone was 71.2%.

关 键 词：催化反应精馏 混烧法 WO3/γ-Al2O3 过氧化氢 Ε-己内酯 

分 类 号：TQ032.4[化学工程]