Method for producing m-aminotrifluorotoluene by solvent-free hydrogenation process

The invention discloses a production method of m-aminobenzotrifluoride by a solvent-free hydrogenation process, and belongs to the field of production of m-aminobenzotrifluoride, the production method of m-aminobenzotrifluoride by the solvent-free hydrogenation process comprises the following steps: S1, material metering: metering and weighing m-nitrobenzotrifluoride and a catalyst; s2, primary feeding: adding m-nitrobenzotrifluoride and a catalyst into a reaction kettle; s3, substance exchange reaction: heating the reaction kettle until the m-nitrobenzotrifluoride, the catalyst and the hydrogen in the reaction kettle are heated to the reaction temperature to generate the mixed amino substance, the method can realize that the obtained mixed amino substance has better quality, conversion rate and yield and low defluorination condition, the methanol-containing wastewater and the inorganic phase mixed amino substance do not need to be separated, the phase separation process is simpler, and the cost is lower. The