A PROCESS FOR PREPARING A SILVER CATALYST, THE CATALYST, AND ITS USE FOR OLEFIN OXIDATION

摘要

A process for preparing a catalyst comprising silver, a rhenium component, and a rhenium co-promoter on a support, which process comprises - depositing the rhenium co-promoter on the support prior to or simultaneously with depositing silver on the support, and - depositing the rhenium component on the support after depositing silver on the support; the catalyst; and a process for preparing an olefin oxide by reacting an olefin with oxygen in the presence of the catalyst. They preferred rhenium co-promoter is tungsten. ® KIPO & WIPO 2007