载体和助剂对CO气相合成草酸二甲酯的影响  

Effects of supports and promoter on gaseous catalyzing synthesis of dimethyl oxalate

作　　者：王宏伟[1] 逄彬 王天来[1] 马中义[1] 焦立平[1] 

机构地区：[1]中国石油吉林石化公司研究院,吉林吉林13202 [2]中国石油吉林石化公司包装制品厂,吉林吉林132021

出　　处：《化工科技》2010年第5期24-26,共3页Science & Technology in Chemical Industry

摘　　要：采用XRD、BET等手段,考察Pd-Al2O3催化剂载体晶型和助剂种类对CO气相偶联合成草酸二甲酯的影响。结果表明,以α-Al2O3为催化剂载体,以La为助剂,草酸二甲酯的空时收率达到0.53 g/mL.h,CO转化率达到70%。By means of XRD,BET and evaluating,it was investigated that the crystal type of supports and the kind of the promoter affect the coupling reactions of the synthesis of dimethyl oxalate from carbon monoxide and methyl nitrite.The results showed that the catalyst with α-Al2O3 as the support and La as the promoter showed good catalytic performance.The yield of dimethyl oxalate is 0.53 g/mL·h,and the conversion ratio of CO is 70%.

关 键 词：一氧化碳 偶联反应 载体 草酸二甲酯 助剂 

分 类 号：O643.36[理学—物理化学]