负载PbO催化剂对苯胺与碳酸二甲酯合成苯氨基甲酸甲酯的催化性能  

Catalytic Performance of Supported PbO Catalysts for Synthesis of Methyl N-phenyl Carbamate from Aniline and Dimethyl Carbonate

作　　者：康武魁[1] 康涛[1] 马飞[1] 赵永峰[2] 崔黎黎[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 [2]胜利油田胜利化工有限公司,山东东营257503

出　　处：《催化学报》2007年第1期5-9,共5页

摘　　要：考察了几种负载PbO催化剂对苯胺(An)与碳酸二甲酯(DMC)反应合成苯氨基甲酸甲酯(MPC)的催化性能.结果表明,PbO/SiO2对该反应表现出很高的催化活性.当w(PbO)=3.6%,n(PbO)/n(An)=1%,n(DMC)/n(An)=5,θ=160℃和t=4h时,MPC收率达到99.5%.PbO/SiO2容易从反应体系中分离,且可重复使用5次,催化活性基本保持不变,使用寿命较长.The catalytic performance of a series of supported PbO catalysts for synthesis of methyl N-phenyl carbamate （MPC） from aniline （An） and dimethyl carbonate （DMC） was studied. It was found that PbO/SiO2 showed the best catalytic performance. The yield of MPC was 99.5% under the conditions of n （PbO）/n （An） = 1% , n （DMC）/n （An） = 5, θ = 160 ℃ , and t = 4 h. The PbO/SiO2 catalyst was easily separated from the product solution, and the catalyst remained higher activity after reuse 5 times, which showed that the lifespan of PbO/SiO2 was long.

关 键 词：苯胺 碳酸二甲酯 苯氨基甲酸甲酯 氧化铅 氧化硅 负载型催化剂 

分 类 号：O643.36[理学—物理化学]