Chlorotoluene separation process

The invention relates to the field of refining of chemical materials, and particularly discloses a chlorotoluene separation process. According to the chlorotoluene separation process, a simulated moving bed is adopted for adsorption treatment, and the simulated moving bed comprises an adsorption area, a purification area, a desorption area and a regeneration area; the adsorption material comprises a ZSM-5 molecular sieve. The simulated moving bed is adopted to replace a traditional rectification method, due to the fact that the process of the simulated moving bed can effectively improve the two-phase mass transfer driving force, binary separation is achieved by simulating countercurrent contact between solid and liquid and utilizing the acting force between maximum mass transfer, and therefore continuous production is achieved, and the separation efficiency of the process device is improved. 本申请涉及化工材料精制的领域，具体公开了一种氯甲苯分离工艺。一种氯甲苯分离工艺，采用模拟移动床吸附处理，所述模拟移动床包括：吸附区、纯化区、解吸区和再生区；所述吸附材料包括ZSM-5的分子筛。本申请采用模拟移动床代替传统精馏法，由于模拟移