Abstract:The stability of magnetic field inside the chloride molten salt electrolysis cell is very important for the improvement of current efficiency. Applying 50 kA chloride molten salt electrolysis cell as research object, and the finite element software COMSOL was used to establish a three-dimensional electromagnetic field model of the electrolysis cell, which simulated the magnetic field strength and electromagnetic force distribution characteristics of the 50 kA electrolysis cell in different planes x, y and z, focusing on influence of process parameters on magnetic field strength and electromagnetic force distribution. The results show that as the current intensity increases, the magnetic field strength and electromagnetic force of each plane increase, and the increase range is the same. Reducing the polar distance, increasing the height of electrolyte level, and increasing the anode radius will increase the maximum magnetic field strength and electromagnetic force.