PROCESS FOR PREPARING CATALYST

摘要

A process for preparing a catalyst for production of an olefin oxide containing (a) a copper oxide and (b) a ruthenium oxide, which comprises the step of drying a mixture containing a copper component, a ruthenium component, water, and at least one ion selected from the group consisting of a nitrate ion having a molar ratio to the copper of 3 or more and a halide ion having a molar ratio to the ruthenium of 9 or more, and calcining.