METHOD FOR PRODUCING XYLYLENEDIAMINE

A method for producing xylylenediamine comprises the following steps of (1) a first hydrogenation step, wherein a mixed liquid, which is composed of dicyanobenzene and a solvent containing liquid ammonia, is hydrogenated by means of a fixed-bed reactor, thereby obtaining a reaction product (A); (2) an ammonia separation step, wherein the liquid ammonia contained in the reaction product (A) or (D) is separated and removed, thereby obtaining a reaction product (B) or (E); (3) a solid-liquid separation step, wherein the reaction product (B) or (A) is subjected to solid-liquid separation, thereby removing the solid component and obtaining a reaction product (C) or (D); and (4) a second hydrogenation step, wherein the reaction product (C) or (E) is hydrogenated by means of a fixed-bed reactor. With respect to the method for producing xylylenediamine, the step (2) and the step (3) are carried out in this order or in the reverse order after the step (1), and the step (4) is carried out thereafter. 为一种苯二甲胺的制造方法，其包括下述