| abstract |
The present invention relates to an epoxidation reactor system for the preparation of olefin oxide, one or more purification zones comprising one or more purification vessels containing an absorbent containing copper and zinc; and epoxidation A reaction zone comprising one or more reaction vessels containing the catalyst, comprising a reaction zone located downstream of one or more purification zones; a process for preparing olefins; and 1,2-diol, 1,2 -Provides a process for preparing diol ethers, 1,2-carbonates and alkanolamines |