用EPR,XRD,SEM,XPS,TPR,DSC等手段综合考察了铜铬氧化的催化剂结构与性能的联系.研究表明,油脂常压加氢时铜铬氧化物催化剂的活性组份是一种CuO和CuCr_2O_4的紧密结合物,其中Cu、Cr分别以Cu~(2+),Cr~(3+)形式存在.氢化反应后Cu~(2+)被还原成Cu~0,而Cr~(3+)不变.研究还表明,当焙烧气氛中氧较充分时会使催化剂中一部分Cr~(3+)氧化成Cr~(6+),从而导致催化剂活性下降. The relationship between the structure and properties of copper-chromium oxide catalysts was comprehensively investigated by means of EPR, XRD, SEM, XPS, TPR and DSC.The results showed that the active component of copper-chromium oxide catalyst was a kind of CuO And CuCr_2O_4, Cu and Cr are present in the form of Cu ~ (2 +) and Cr ~ (3 +), respectively. After the hydrogenation, Cu ~ (2+) is reduced to Cu ~ +) .The research also shows that when the oxygen in the roasting atmosphere is sufficient, a part of Cr 3+ in the catalyst is oxidized to Cr 6+, which leads to the decrease of the activity of the catalyst.