H_4SiW_6Mo_6O_(40)/SiO_2在H_2O_2催化氧化环己酮合成己二酸中的应用  

Application of H_4SiW_6Mo_6O_(40)/SiO_2 as catalyst in the oxidation of cyclohexanone to adipic acid by H_2O_2

作　　者：杨水金[1,2] 喻莉[1,2] 王雨飞[1,2] 杨赟[3] 孙文兵[1,2] 

机构地区：[1]湖北师范学院化学与环境工程学院,湖北黄石435002 [2]污染物分析与资源化技术湖北省重点实验室(湖北师范学院),湖北黄石435002 [3]湖北大学化学化工学院,湖北武汉430062

出　　处：《湖北大学学报（自然科学版）》2013年第1期123-127,共5页Journal of Hubei University：Natural Science

基　　金：湖北省教育厅重点科研基金(D20122205)资助

摘　　要：采用溶胶-凝胶法制备了二氧化硅负载硅钨钼酸催化剂.以二氧化硅负载硅钨钼酸(H4SiW6Mo6O40/SiO2)为催化剂,30%H2O2为氧源,催化氧化环己酮合成己二酸.探讨H4SiW6Mo6O40/SiO2对氧化反应的催化活性,较系统地研究了二氧化硅负载硅钨钼酸用量、反应温度、H2O2用量、反应时间等因素对产物收率的影响.实验表明:H4SiW6Mo6O40/SiO2是合成己二酸的良好催化剂;在n(环己酮)∶n(H2O2)∶n(H4SiW6Mo6O40/SiO2)=100∶198∶0.124,反应温度为110℃,反应时间3.5h的最佳条件下,己二酸的收率可达86.7%.A new environmental friendly catalyst,H4SiW6Mo6O40/SiO2 was prepared by Sol-gel method. Using H4 SiW6 M06 O40/SiOz as catalyst, adipic acid was synthesized from the oxidation of cyclohexanone by 30% H2 02. Influences of dosage of H4 SiW6 M06 O40/SIO2, reaction temperature, volume of hydrogen peroxide and reaction time were also discussed. Experimental results were shown that.H4SiW6Mo6O40/SiO2 was a good catalyst for synthesis of adipic acid. When n（cyclohexene）：n（H2O2） ： n（H4SiW6Mo6O40/SiO2） = 100 ： 198 ： 0.124, reaction temperature was 110 ℃ and reaction time was 3. 5 h, under the optimum conditions, the yield of adipic acid was 86.7%.

关 键 词：H4SIW6MO6O40 SIO2 催化 环己酮 己二酸 

分 类 号：TQ426.91[化学工程] TQ655