金属有机框架负载杂多酸催化丙三醇一步氧化酯化的研究  

Study on One-pot Oxidative Esterification of Glycerol with MOF Supported Polyoxometalates as Catalyst

作　　者：靳昕[1] 周婷[2] 祝洁[2] 

机构地区：[1]中国石油化工股份有限公司炼油事业部,北京100728 [2]南京理工大学化工学院,江苏南京210094

出　　处：《精细化工中间体》2016年第1期70-73,84,共5页Fine Chemical Intermediates

摘　　要：制备了金属有机框架(MOFs)负载的杂多酸催化剂,研究了丙三醇一步氧化酯化的反应条件和催化性能。pH=8,负载8%,反应24 h的条件下,丙三醇转化率48.6%,酯类选择性34.5%。反应过程绿色温和,且催化剂可循环利用,实现了生物柴油副产物的再生。研究了催化过程中各个因素的影响,并讨论了MOFs的传质作用,分析丙三醇一步氧化酯化的反应过程。Polyoxometalates supported by metal-organic frameworks（MOFs） were synthesized and used as catalysts in the one-pot oxidative esterification of glycerol. Reaction conditions were as follows： p H value was 8, catalyst loading was 8%, and the reaction time was 24 hours. A yield of 48.6% was obtained, and the selectivity of esters was 34.5%. The whole process was sustainable and mild, and catalysts could be recycled. The recyling of the byproducts of biodiesel could be achieved. Studies on the catalytic factors and mass transfer of MOFs were carried out. The process was analyzed.

关 键 词：丙三醇 氧化酯化 金属有机框架 传质效应 

分 类 号：TQ2[化学工程—有机化工]