合成甲酸甲酯用Cu-Mn催化剂的制备

Preparation of Cu-Mn Catalyst for Methylformate Synthesis from Synthetic Gas

采用共沉淀法、浸渍法和络合法制备了一系列的铜锰催化剂 .研究了它们对合成气一步法合成甲酸甲酯的活性及选择性 .共沉淀法中以采用并流法和季铵碱作沉淀剂所得催化剂活性较好 .络合法制得的催化剂活性明显高于共沉淀法及浸渍法 ,在不同分解气氛及焙烧温度下所得催化剂对反应活性及选择性有较大影响 .采用 XRD及 BET分析探讨了影响因素 .

Three methods of catalyst preparation: coprecipitation, impregnation and complex precipitation for methylformate(MF) synthesis directly from synthetic gas were compared. The kinds of precipitants, calcination temperature, feeding process of reactants on the catalyst activity and yield of methylformate have been investigated by XRD and BET surface area measurements. The results showed that the more the active phase of copper manganate and the greater the surface area of the catalyst, the more the active the catalyst prepared.