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在ＣｕＯＺｎＯ／Ａｌ２Ｏ３催化剂上，甲醇与乙醇在常压和２１０～３６０℃温度下一步反应合成异丁醛．利用正交设计方法，研究了ＣｕＯＺｎＯ／Ａｌ２Ｏ３体系催化剂组成和制备条件等因素对催化剂催化性能的影响．结果表明，催化剂中ＣｕＯ含量对催化剂的催化活性影响最大，而ＺｎＯ含量则主要影响催化剂对异丁醛的选择性．催化剂制备条件，如沉淀温度、陈化时间等，也不同程度地影响催化剂的催化性能．ＸＲＤ和ＢＥＴ表征结果表明，催化剂的晶相及比表面积与催化剂制备条件直接相关．对异丁醛合成反应机理进行了探讨，认为乙醇主要在ＣｕＯ中心上吸附、脱氢，然后在ＺｎＯ中心上与甲醇缩合、脱水生成异丁醛．
In the CuO ZnO / Al2O3 catalyst, methanol and ethanol at atmospheric pressure and 210 ~ 360 ° C temperature reaction of the synthesis of isobutyraldehyde. Using orthogonal design method, the influence of catalyst composition and preparation conditions on the catalytic performance of CuOZnO / Al2O3 catalyst was studied. The results show that the CuO content of the catalyst has the greatest effect on the catalytic activity of the catalyst, while the content of ZnO mainly affects the selectivity of the catalyst to the isobutyraldehyde. Catalyst preparation conditions, such as precipitation temperature, aging time, also affect the catalytic performance of the catalyst to varying degrees. XRD and BET characterization results show that the crystalline phase and the specific surface area of the catalyst are directly related to the catalyst preparation conditions. The mechanism of isobutyraldehyde synthesis was discussed. It is believed that ethanol mainly adsorbs and dehydrogenates on the center of CuO, then condenses with methanol in the center of ZnO and dehydrates to form isobutyraldehyde.