A copper-containing catalyst, a process for the preparation and use thereof

摘要

This invention discloses a copper-containing catalyst, a process for the preparation thereof and uses of said catalyst. Said catalyst comprises copper oxide of 30-70wt%, zinc oxide of 30-70wt%, alumina of 0-30wt% and no sodium, and has a specific surface area of 30-50m<2>/g, a pore volume of 0.10-0.25ml/g, and an average pore diameter of 10-25nm and has an uniform crystallite distribution wherein the crystallites having a diameter of less than 1.0nm account for 0-10%, those of 1.0-2.0nm account for 80-95%, and those of more than 2.0nm account for 0-10%. Said process comprises a coprecipitation method using an organic acid and/or an ammonium salt thereof as precipitant to provide a copper-containing catalyst having a relatively large specific surface area and pore volume, and a uniform crystallite distribution. The process according to the present invention has overcome the problems involved in environmental protection and the disadvantages of complexity in the preparation process existing in the prior art, and the costs for materials and production are reduced.