用工业原料以不同方法制备了几种低温合成甲醇Cu—ZnO—Al_2O_3催化剂。发现用NH_4HCO_3为沉淀剂,使Cu~(++)、Zn~(++)共沉淀,捏和掺入Al(OH)_3得到的催化剂在常压下具活有较好的活性和热稳定性,尤其在频繁反复升降温的条件下仍能保持较高的活性。对常压活性评价方法,条件选择进行了研究。 Several low-temperature synthetic Cu-ZnO-Al_2O_3 catalysts were prepared by different methods using industrial raw materials. It was found that the catalyst obtained by co-precipitation of Cu ~ (++) and Zn ~ (++) with NH_4HCO_3 as precipitating agent and kneaded with Al (OH) _3 had better activity and thermal stability under normal pressure Sex, especially in the frequent repeated cooling conditions can still maintain a high activity. Atmospheric activity evaluation methods, conditions were studied.