| 摘要 |
A process for regenerating an antimony containing metal oxide catalyst which comprises impregnating aqueous ammonia in an amount corresponding to the pore volume of the catalyst, to a metal oxide catalyst whose activity has been deteriorated, the catalyst containing an essential components (A) antimony, (B) at least one element selected from the group consisting of iron, cobalt, nickel, manganese, uranium, cerium, tin and copper, (C) at least one element selected from the group consisting of vanadium, molybdenum and tungsten and (D) tellurium, drying the catalyst, and calcining the catalyst in a non-reducing atmosphere at a temperature in the range of about 550 DEG C. to about 950 DEG C. |
