The utility model discloses a
rectifier for p-fluorobenzaldehyde production. The
rectifier comprises a rectifying tank, a
servo motor is mounted at the upper end of the rectifying tank, a driving shaft of the
servo motor is arranged in the rectifying tank in a penetrating manner, a liquid dispersing component is arranged at the lower end of the driving shaft, and a
tower plate is mounted in the rectifying tank. According to the utility model, the
servo motor and the driving shaft are operated to drive the connecting frame to rotate so as to drive the liquid accumulation disc to rotate, and when the liquid accumulation disc rotates, the liquid in the liquid accumulation disc is sprayed out through the liquid dispersing opening, so that the liquid is conveniently and uniformly contacted with the
tower plate, and the influence on the
mass transfer efficiency and the separation effect is avoided; the connecting rods, the limiting blocks and the limiting grooves are adopted, and the limiting blocks are moved out of the limiting grooves, so that the
tower plates are convenient to disassemble and assemble, the tower plates are convenient to replace according to the production
process requirements in the steps of separating the tower plates, changing the arrangement mode of the tower plates and the like, and meanwhile, the problems that the tower plates are inconvenient to disassemble when being blocked by materials, scales or particles, the rectification efficiency is influenced and the like are solved.