A process for the preparation of ethylene oxide by oxidation of ethylene with oxygen in the presence of silver-containing and promoter-containing catalysts, wherein at least two silver catalysts of different selectivity and activity are used in a combined catalyst bed, in which the reaction mixture, on passing through the reactor, comes into contact with progressively more active and progressively less selective silver catalysts.
申请公布号
EP0557833(B1)
申请公布日期
1996.08.21
申请号
EP19930102287
申请日期
1993.02.13
申请人
BASF AKTIENGESELLSCHAFT
发明人
HERZOG, KLAUS, DR.;BOECK, STEFAN, DR.;MROSS, WOLF DIETER, DR.;PLUECKHAN, JUERGEN, DR.;BOEHNING, KARL-HEINZ, DR.;SCHWARZMANN, MATTHIAS, DR.