B - Operations – Transporting – 01 – J
Patent
B - Operations, Transporting
01
J
252/85
B01J 23/66 (2006.01) C07D 301/10 (2006.01)
Patent
CA 1165311
ABSTRACT OF THE DISCLOSURE 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° to 950°C in an inert gaseous atmosphere having an oxygen concentration of not more than 3 volume percent in the final step.
393110
Kumazawa Toshihiko
Mitsuhata Masashi
Nagase Shin-Ichi
Nakai Takahiko
Nippon Shokubai Kagaku Kogyo Co. Ltd.
Sim & Mcburney
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