| 摘要 |
An improved process for preparing a silver-supported catalyst for use in the production of ethylene oxide by catalytic vapor phase oxidation of ethylene with molecular oxygen, which comprises impregnating a porous inorganic carrier with a solution of a silver compound containing a reducing compound, subjecting the impregnated product to a reducing treatment at 50 DEG to 200 DEG C. to disperse and deposit metallic silver on the external surface of the carrier and the internal surfaces of its pores, washing the silver-supported carrier with water, a lower alcohol or both, drying the washed product at a temperature of 50 DEG to 150 DEG C., impregnating the dried product with a solution containing a promoter, and evaporating the liquid ingredients. |
