多金属氧酸盐催化合成碳酸乙烯酯的研究  

Synthesis Studying of Ethylene Carbonate Catalyzed by Polyoxometalates

作　　者：孙德武[1] 林险峰[1] 

机构地区：[1]吉林师范大学化学学院,吉林四平136000

出　　处：《吉林师范大学学报（自然科学版）》2013年第2期35-38,共4页Journal of Jilin Normal University:Natural Science Edition

基　　金：国家"863"计划资助高科技项目(2012AA03A212)

摘　　要：碳酸乙烯酯(EC)是具有重要作用的有机化学品.为探索一种具有工业应用价值的EC生产工艺,以环氧乙烷(EO)和二氧化碳(CO2)为原料通过环加成反应制备EC,该方法是一条环境友好且原子经济的工艺路线.本文研究了在温和条件下,不加任何有机溶剂,以过渡金属取代的Dawson结构多金属氧盐P2W17M.Br(M=Co,Mn,Cu,Ni)为主催化剂,以EO和CO2的环加成催化反应来制备EC,为选择最佳合成条件提供了理论基础,并展望了该领域的研究前景.研究表明,在反应条件为0.6MPa,120℃,EO与催化剂P2W17Co.Br摩尔比为300∶1,反应时间为3 h时,EC产率可达98%.该工艺对EC的大规模工业化生产具有一定的参考价值.The ethylene carbonate （EC） is an important role of organic chemicals. In order to explore a valuable process for commercial production of EC. Preparation of EC With ethylene oxide （EO） and carbon dioxide （CO2 ） as the raw material by the cycloaddition reaction is an environmentally friendly and atom economic process route. In this paper, Preparation of EC With EO and CO2 by the cycloaddition catalysis reaction Under mild conditions, without any organic solvent, Dawson structure of the transition metal-substituted polyoxometallate P2W17M ·Br（ M = Co, Mn, Cu, Ni）-based catalyst. It provides a theoretical basis for selecting the optimal synthesis conditions, and future prospects for the research in the field. Studies have shown that The EC yield up to 98% In the reaction conditions of 0.6 MPa, 120 ℃,the EO and the catalyst P2W17Co · Br molar ratio of 300： 1,and the reaction time was 3 h. The process of the EC large-scale industrial production has a certain reference value.

关 键 词：碳酸乙烯酯 环氧乙烷 二氧化碳 环境友好 原子经济 多金属氧酸盐 环加成 

分 类 号：O621.3[理学—有机化学]