Abstract:According to the action mechanism of additives in the process of parallel flow electrolysis refining, combined with the production practice of No.2 electrolysis workshop of Xiangguang Copper Industry, the parallel flow electrolysis technology, the relationship between additive amount and surface quality of cathode copper are analyzed and discussed. The amount and proportion of additives and the operation steps of additive dissolution are determined, so that the quality of cathode copper is significantly improved.