Nippon Shokubai Kagaku Kogyo Co., Ltd.

Shin-ichi Nagase

Toshihiko Kumazawa

Masashi Mitsuhata

Takahiko Nakai

In a method for the manufacture of a silver catalyst having silver deposited on a porous inorganic carrier in conjunction with at least one reaction accelerator selected from the group consisting of alkali metals and thallium to be used for the production of ethylene oxide, the improvement comprising the steps of depositing silver on the porous inorganic carrier in conjunction with at least one reaction accelerator selected from the group consisting of alkali metals and thallium thereby preparing an activated silver catalyst and subsequently subjecting said silver catalyst to a high-temperature treatment at a temperature in the range of 550.degree. to 950.degree. C. in an inert gaseous atmosphere having an oxygen concentration of not more than 3 volume percent in the final step.

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Tokyo, Japan

Shin-ichi Nagase