H_6P_2Mo_9W_9O_(62)/MCM-41催化合成环己酮乙二醇缩酮  

Catalytic synthesis of cyclohexanone ethylene ketal with H_6P_2Mo_9W_9O_(62)/MCM-41

作　　者：王伟华 郭改娟 陈小盼 杨志远 杨水金 WANG Wei-hua GUO Gai-juan CHEN Xiao-pan YANG Zhi-yuan YANG Shui-jin(College of Chemistry and Chemical Engineering, Hubei Normal University, Huangshi 435002, Huhei, Chin)

机构地区：[1]湖北师范大学化学化工学院,湖北黄石435002

出　　处：《宝鸡文理学院学报（自然科学版）》2016年第4期22-26,共5页Journal of Baoji University of Arts and Sciences(Natural Science Edition)

基　　金：湖北高校2016年省级大学生创新创业训练计划项目(201610513010);湖北省自然科学基金重点项目(2014CFA131)

摘　　要：目的合成环己酮乙二醇缩酮。方法采用浸渍法制备了H_6P_2Mo_9W_9O_(62)/MCM-41催化剂,并采用FT-IR、XRD对其进行了表征。以环己酮和乙二醇为原料,催化合成环己酮乙二醇缩酮,采用FT-IR表征手段来表征合成产物。结果经反应条件优化,在酮醇摩尔比为1∶1.3,带水剂环己烷用量为8 mL,催化剂用量为反应物总质量的0.8%,反应时间为60 min的条件下,缩酮收率可达82.6%。催化剂重复使用5次后收率仍有73.5%。结论催化剂H_6P_2Mo_9W_9O_(62)/MCM-41对合成环己酮乙二醇缩酮具有反应时间短、催化剂用量少、产品收率高等优点。Purposes--To synthesize cyclohexanone ethylene ketal. Methods--H6P2Mo9W9O62/ MCM-41 was prepared by conventional impregnation method and characterized by FT-IR and XRD. Cyclohexanone ethylene ketal were synthesized from cyclohexanone and ethylene. It was characterized by FT-IR. Results--The optimum conditions are： mole ratio of cyclohexanone to ethylene was 1 ： 1.3, cyclohexane dosage was 8 mL, the quantity of catalyst was equal to 0.8% of feed stocks, and the reaction time was 60 min, yield of cyclohexanone ethylene ketal can reach up to 82.6%. The eatalygt yield still kept at 73.5% after 5 cycles. Conclusion--H6P2Mo9W9O62/MCM-41 for synthesis of cyclohexanone ethylene ketal has good catalytic activity, less catalyst dosage, short reaction time, high product yield, etc.

关 键 词：H6P2Mo9W9O62/MCM-41 环己酮乙二醇缩酮 催化 

分 类 号：TQ426.91[化学工程]