新型固体碱介孔MgO-ZrO_2的制备及催化性能研究  

Preparation of mesoporous MgO-ZrO_2 nanocomposites,a new solid base,and its catalytic performance

作　　者：刘水刚[1] 黄世勇[1] 魏伟[1] 孙予罕[1] 

机构地区：[1]中国科学院山西煤炭化学研究所煤转化国家重点实验室

出　　处：《现代化工》2007年第9期35-37,共3页Modern Chemical Industry

摘　　要：采用可控的溶胶-凝胶法制备了一种新型的介孔MgO-ZrO2固体碱,其具有优良的热稳定性,在700℃依然能保持着介孔特征。这种新型的固体碱具有较高的比表面积和较大的孔道结构,同时纳米级的MgO和ZrO2颗粒紧密联结,具有比常规固体碱催化剂更高的活性和稳定性。该介孔固体碱在甲醇与环氧丙烷合成醇醚反应中表现出良好的催化性能。MgO-ZrO2 nanocomposites, a new solid base, is prepared via an appropriate sol-gel process. It has improved heat stability that it can keep mesoporous structure at a temperature of 700℃.It also has a higher surface area rate and bigger porous structure, and in it the nano-particles of MgO and ZrO2 are very strongly sticking together. This makes it higher activity and stability than other normal solid base. It also shows remarkable activity and stability in the synthesis of propylene glycol methyl ether from propylene oxide and methanol.

关 键 词：固体碱 MgO—ZrO2 稳定性 制备 

分 类 号：TQ426.6[化学工程]