Fractional separation device for IPDA synthesis

The utility model discloses a fraction separation device for IPDA synthesis, which comprises a fraction tank, a motor, a partition plate and a water absorption sponge, the motor is mounted at the upper end of one side wall of the fraction tank, the partition plate is mounted at the upper end in the fraction tank, and the partition plate is rotatably connected with the fraction tank. The distillation tank has the beneficial effects that the motor, the partition plate and the water absorption sponge are arranged, the water absorption sponge can absorb part of evaporated gas in the distillation process, after distillation is completed, the partition plate is driven by the motor to rotate, then the water absorption sponge is driven to rotate and is located above, meanwhile, the water absorption sponge can be conveniently replaced by opening the tank cover, and the distillation tank is convenient to use. In this way, gas gathered on the inner wall of the tank cover can be effectively prevented from being liquefied