Discusses on the Technic Improvement of Trimellitic Anhydride

The trimellitic anhydride as a basic organic composed material is more and more used in various fine chemicals. The paper analyzes the market situations and introduces the production techniques of the trimellitic anhydride both at home and abroad. The suggestion on improving our trimellitic anhydride producing technique is perfecting the technology of the continuous liquid phase air oxidation method. The improving measures for referrence are presented so as to insure the development of our country`s trimellitic anhydride industry.