[EN] PROCESS FOR OXIDATION OF CYMENES TO AROMATIC ACIDS<br/>[FR] PROCÉDÉ D'OXYDATION DE CYMÈNES EN ACIDES AROMATIQUES
申请人:PERSTORP AB
公开号:WO2014133433A1
公开(公告)日:2014-09-04
Disclosed is a process in two or more steps for oxidation of cymenes to aromatic carboxylic acids. Said process comprises a first oxidation step in gas phase with air or molecular oxygen in presence of a nitric acid, Mn(VII), permanganate, Mn(II) and/or Co(II) and/or V2O5 comprising catalyst, follwed by a second oxidation step in liquid phase in presence of a Co/Mn/Br catalyst.
本发明公开了一种将环甲基苯氧化为芳香族羧酸的两步或多步氧化过程。该过程包括第一步在气相中使用空气或分子氧在硝酸、Mn(VII)、高锰酸盐、Mn(II)和/或Co(II)和/或V2O5催化剂的存在下进行氧化,然后在液相中在Co/Mn/Br催化剂的存在下进行第二步氧化。