Patent ID: 6528658
Filing Date: 2003-03-04
Classification: B01J,C07C,Y02P

Abstract:
A process for producing a cycloalkanone from a cycloalkane in an oxidizing reaction system using an oxidizing catalyst having an imide unit represented by the following formula (I): wherein X represents oxygen atom or hydroxyl group,which comprises (A) a step for bringing the cycloalkane into contact with molecular oxygen in the presence of the oxidizing catalyst, (B) a step for separating the catalyst, and a by-produced acid component or a derivative thereof from the reaction mixture, (C) a step for separating a first component containing the cycloalkane and a second component which has a boiling point higher than that of the first component and contains the cycloalkanone and the cycloalkanol from the reaction mixture, and (D) a step for separating the cycloalkanone and the cycloalkanol from the second component and then recycling the separated cycloalkanol to the oxidizing reaction system.