1. Derived from the catalytic hydrogenation of aniline, can be divided into normal pressure method and pressurization method. In addition, cyclohexylamine can be prepared by a method such as catalytic ammonolysis of cyclohexane or cyclohexanol, reduction of nitrocyclohexane, and cyclohexanone-catalyzed aminolysis in the presence of hydrogen.
2. Its preparation method is based on aniline as raw material, obtained by catalytic hydrogenation. The aniline vapor and hydrogen are mixed into a catalytic reactor, and the hydrogenation reaction is performed in the presence of a cobalt catalyst at 130-170° C. The product is cooled and distilled to obtain a finished product.