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用共沉淀法制备了Ｃｕ－Ｆｅ系催化剂，它是由脂肪酸甲酯加氢制备高碳醇的新催化体系．催化剂经焙烧后的物相为ＣｕＯ，γ－Ｆｅ２Ｏ３和ＭｇＯ，形成了活性相的结构前驱．在反应条件下，ＣｕＯ首先被还原为金属态的Ｃｕ０，然后γ－Ｆｅ２Ｏ３被还原为Ｆｅ３Ｏ４；Ｃｕ０和Ｆｅ３Ｏ４共同参与催化该反应．本文用ＸＲＤ，ＴＧ－ＤＴＡ和Ｍｏｓｓｂａｕｅｒ谱等手段，结合催化剂的活性测定，确定了催化剂的活性相为Ｃｕ０和Ｆｅ３Ｏ４；ＭｇＯ可改变催化剂的电子结构和几何构型，起到重要的助催化作用
Cu-Fe catalyst was prepared by coprecipitation method, which is a new catalytic system for the hydrogenation of fatty acid methyl esters to higher alcohols. The calcined phase of the catalyst is CuO, γ-Fe2O3 and MgO, forming a structural precursor of the active phase. Under the reaction conditions, CuO is first reduced to Cu0 metal state, then γ-Fe2O3 is reduced to Fe3O4; Cu0 and Fe3O4 participate in the catalytic reaction. In this paper, the active phases of CuO and Fe3O4 were determined by means of XRD, TG-DTA and Mossbauer spectroscopy, and the activity of CuO and Fe3O4 was determined. MgO could change the electronic structure and geometry of the catalyst, which played an important role in promoting catalysis