水合碱金属卤化物催化CO_2与环氧化物合成环状碳酸酯  

Hydrated Alkali Metal Halides as Efficient Catalysts for the Synthesis of Cyclic Carbonates from CO_2 and Epoxides

作　　者：周喜[1,2] 张毅[1,2] 杨先贵[1,2] 姚洁[1] 王公应[1] 

机构地区：[1]中国科学院成都有机化学研究所,四川成都610041 [2]中国科学院研究生院,北京100049

出　　处：《催化学报》2010年第7期765-768,共4页

基　　金：国家"十一五"科技支撑计划重大项目(2006BAE02803)

摘　　要：在不添加任何助剂及溶剂的条件下,考察了水合碱金属卤化物催化CO2与环氧丙烷合成碳酸丙烯酯的反应性能.结果表明,水合碱金属卤化物表现出远高于无水碱金属卤化物的催化活性,其中,以NaI·2H2O的催化性能最好,在120°C,1MPa的条件下反应1.5h,碳酸丙烯酯收率达97%.此外,NaI·2H2O在CO2与其它环氧化物合成相应环状碳酸酯反应中也表现出较高的催化活性.The synthesis of propylene carbonate from carbon dioxide and propylene oxide using hydrated alkali metal halides as catalysts in the absence of a co-catalyst and a solvent was investigated.The hydrated alkali metal halides showed much higher catalytic activity than the anhydrous alkali metal halides.Sodium iodide dihydrate was found to be the most efficient among them and it gave a 97% yield of propylene carbonate at 120 °C under 1 MPa within 1.5 h.The corresponding cyclic carbonates from CO2 and other epoxides using sodium iodide dihydrate as catalyst were also successfully synthesized.

关 键 词：二氧化碳 环氧丙烷 碳酸丙烯酯 环状碳酸酯 水合碱金属卤化物 

分 类 号：TQ216[化学工程—有机化工]