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本发明是关于铜电解精炼工序中的电解液的净液方法,特别是详述了关于除去电解液中的Sb、Bi、As等杂质的方法。铜电解精炼工序的电解液中的杂质Sb、Bi、As等是从阳极溶出在该电解液中的,或作为阳极泥悬浮于该电解液中。当悬浮的阳极泥附着在阴极表面时,就会从其附着点形成突起状的电积,成为电极间产生短路的原因,或将阳极泥及电解液带入电积铜中,成为导致阴极质量降低的原因。另一方面,当溶出在电解液中的Sb、
The present invention relates to a method of purifying an electrolytic solution in a copper electrolytic refining process, and more particularly to a method of removing impurities such as Sb, Bi, As and the like in an electrolytic solution. Sb, Bi, As and the like in the electrolytic solution of the copper electrolytic refining process are eluted from the anode in the electrolytic solution or suspended in the electrolytic solution as anode slime. When the suspended anode slime adheres to the surface of the cathode, protuberant electrical charges form from its point of attachment, causing a short circuit between the electrodes, or bringing the anode slime and the electrolytic solution into the copper electrowinning, resulting in poor cathode quality The reason for the decrease. On the other hand, when Sb dissolved in the electrolyte is dissolved,