| 摘要 |
PROBLEM TO BE SOLVED: To provide a method for producing propylene oxide from propylene and acetophenone by epoxidation without by-producing styrene, and cumene used as a carrier of oxygen for the epoxidation can be repeatedly used, and acetophenone can be obtained. SOLUTION: The method comprises an oxidation step: cumene is oxidized to obtain cumene hydroperoxide; an epoxidation step: propylene oxide and cumyl alcohol are obtained from the cumene hydroperoxide and propylene; an acetophenone separation step: acetophenone contained in a reaction liquid containing cumyl alcohol is separated and recovered, and cumene is recycled to the oxidation step: and a hydrocracking step: the cumyl alcohol from which the acetophenone is separated in the acetophenone separation step is subjected to hydrocracking to form cumene, and said cumene is recycled to the oxidation step. COPYRIGHT: (C)2003,JPO
|
