载体的性质对CO气相催化偶联反应的影响  

Influence of Support Properties on CO Vapor-Phase Catalytic Coupling Reactions

作　　者：霍志国[1] 李振花[1] 王保伟[1] 马新宾[1] 许根慧[1] 

机构地区：[1]天津大学化工学院一碳化学与化工国家重点实验室,天津300072

出　　处：《化学反应工程与工艺》2002年第1期31-35,共5页Chemical Reaction Engineering and Technology

基　　金：国家"九五"科技攻关课题 (编号 96 - 5 39- 0 1)

摘　　要：考察了以 α- Al2 O3 为载体的负载型钯系双金属催化剂用于 CO气相催化偶联制备草酸二乙酯反应的活性。研究了催化剂的比表面和孔结构对负载型钯系双金属催化剂的选择性和活性的影响。结果表明 ,催化剂的比表面对反应的选择性和活性的影响并不十分明显 ;孔结构则对其有较大的影响 ,其中孔容的影响较大 ,孔径也有一定的影响。在合适的孔径范围内 。The emphasis was addressing the effects of α Al 2O 3 support on the synthesis of the diethyl oxalate by vapor phase catalytic coupling reactions. The influences of the specific surface and the pore structure on the selectivity and the activity of Pd system catalysts were studied. The experimental results showed that the effect of the specific surface on the selectivity of the catalyst is not sensible, but the effect of the pore structure is more sensible.

关 键 词：钯 载体 一氧化碳 偶联反应 CO 草酸乙二酯 氧化铝 负载型催化剂 

分 类 号：O623.624[理学—有机化学] TQ225.24[理学—化学]