| 摘要 |
A process is disclosed whereby a silver containing catalyst is produced, in a particle size ranging from 300 to 1,500 A, through the pulsed electrolysis of a solution of a silver salt (e.g., silver nitrate) in the presence of a complexing agent (e.g., ammonia) wherein current is fed to the solution for spaced periods of a few seconds duration. Advantageously, after about 10-15 cycles of feeding and interrupting the current to the solution, a current inversion lasting from a few seconds is effected. The silver is obtained in the form of a powder which, after washing, can be used directly or supported on a ceramic material as catalyst for the production of ethylene oxide. |
