Process for the preparation of 2,6-xylidine

Details Process for the preparation of 2,6-xylidine Process for the preparation of 2,6-xylidine

C - Chemistry, Metallurgy

07

C

260/601.8

C07C 209/18 (2006.01)

Patent

CA 1181429

"Process for the preparation of 2,6-xylidine" ABSTRACT OF THE DISCLOSURE An improved process for the preparation of 2,6- xylidine by amination of 2,6-dimethylphenol in the vapor phase with ammonia in the presence of an aluminum oxide catalyst is disclosed. According to the invention, particular amination conditions are chosen to effect high yields of the desired product. These conditions include a temperature of 360 to 460°C. and a minimum molar ratio of ammonia to 2,6-dimethylphenol which corresponds to the general formula Image wherein X represents the minimum molar ratio of ammonia to 2,6-dimethylphenol, Y represents the minimum pressure and M and B are constants, with M = -39.2826 and B = 262.809

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