China Nonferrous Metallurgy

With the increase in the complexity of copper smelting raw materials, it is difficult to control the composition of anode copper within the standard. The quality of cathode copper during the refining process has always been a hot and difficult point in copper smelting research. This article research and explore the effect of magnetic field synergy on the copper electrolysis process by adding a magnetic field and a transition cell to the original circulation pipeline of copper electrolysis, and compared the distribution of Cu²⁺ in the electrolytic cell, the clarity of the electrolyte, the composition of the anode slime, and the quality and output of the cathode copper before and after applying a magnetic field. The results show that the magnetic field can strengthen the diffusion performance of Cu²⁺ and accelerate the anode dissolution rate. Under the action of the magnetic field, the copper precipitation at the cathode increases by 10%, the current efficiency increases by 3%, and the residual pole rate decreases by 9%. The magnetic field can promote the self-purification of the copper electrolyte, reduce the concentration of arsenic, antimony and bismuth impurity ions in the electrolyte. After applying a magnetic field, the antimony element content in the anode slime increases by 56.2%, the bismuth content increases by 24.5%, and the arsenic content increases by 5%. The synergistic effect of the magnetic field can promote the sedimentation of anode slime, reduce the number of cathode copper anode slime particles, and reduce the probability of cathode copper particle formation by 21% after applying a magnetic field.