CO偶联合成草酸二甲酯催化剂研究  

Study on catalyst for CO coupling to dimethyl oxalate

作　　者：吴结华 于杨 吕锋 殷玉圣 袁浩然 Wu Jiehua;Yu Yang;Lü Feng;Yin Yusheng;Yuan Haoran(Nanjing Chemical Research Institute Co.,Ltd.,Nanjing 210048,Jiangsu,China)

机构地区：[1]南京化工研究院有限公司,江苏南京210048

出　　处：《工业催化》2020年第5期74-77,共4页Industrial Catalysis

摘　　要：采用浸渍法制备CO偶联制备草酸二甲酯用负载型Pd催化剂,考察载体、浸渍方法、Pd含量、助剂对Pd催化剂性能的影响。根据傅里叶变换红外光谱研究Pd/α-Al2O3负载型催化剂上CO偶联制草酸二甲酯的反应机理。结果表明,采用α-Al2O3载体,Pd质量分数4‰,掺杂助剂Cu的蛋壳型的Pd/α-Al2O3催化剂上,草酸二甲酯时空收率达到735.7 g·(L·h)-1。The impregnation method was used to prepare a supported Pd catalyst for CO coupling to prepare dimethyl oxalate.The effects of the support,impregnation method,Pd content,and additives on the performance of the Pd catalyst were investigated.Study on the reaction mechanism of CO coupling to dimethyl oxalate on Pd/α-Al2O3 supported catalysts was carried out based on Fourier transform infrared spectroscopy.The results showed that usingα-Al2O3 support,Pd mass fraction of 4‰and eggshell-type Pd/α-Al2O3 catalyst doped with Cu,the space-time yield of dimethyl oxalate reached 735.7 g·(L·h)-1.

关 键 词：催化剂工程 一氧化碳 桥式吸附 亚硝酸甲酯 偶联 草酸二甲酯 钯 反应机理 

分 类 号：TQ426.94[化学工程] TQ0322