【摘要】 以Cu、Zn、A l等金属离子的硝酸盐为原料,以共沉淀方式制备CuO/ZnO/A l2O3催化剂,在常压下考察该催化剂对1,4-丁二醇脱氢制备γ-丁内酯的活性效果。温度在250~260℃,液时空速2.0 h-1,氢醇比在4.5~5.5范围内,γ-丁内酯的收率在92%以上。在适宜的条件下,该催化剂具有较好的活性和操作灵活性。更多还原

【Abstract】 CuO/ZnO/Al₂O₃ catalyst is prepared by co-precipitation method,with Cu,Zn,Al nitrates as raw materials.The activity of the catalyst on the preparation of γ-butyrolactone by dehydrogenation of 1,4-butanediol in the atmosphere is reviewed.With reaction temperature 250²60 ℃,liquid hourly space velocity 2.0 h^-1,the mole ratio of hydrogen and alcohol 4.5⁵.5,the yield of γ-butyrolactone can be up to 92%.In appropriate circumstances,catalyst has good activity and an operating flexibility.更多还原