Method for pretreating lead base inert anode for electro-deposit copper
An inert anode and pretreatment technology, applied in the direction of electrodes, electrolysis process, electrolysis components, etc., can solve the problems of high power consumption, cost increase, unfavorable energy saving and emission reduction strategy of copper electrowinning, etc., and achieve the reduction of power consumption per ton of copper, operation Convenience, effect of reducing lead content of cathode copper impurities
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Embodiment 1
[0028] The pretreatment liquid composition and pretreatment process parameters of this embodiment are shown in Table 2.
[0029] The Pb-Ca-Sn anode treated by this pretreatment process is used as the anode of electrolytic copper, and after electrolysis in copper electrolytic solution for 10 days, its oxygen evolution overpotential is stable at 545mV.
[0030] The pretreatment liquid composition of table 2 embodiment 1 and pretreatment process parameter
[0031]
Embodiment 2
[0033] The pretreatment solution composition and pretreatment process parameters of this embodiment are shown in Table 3.
[0034] The pretreatment liquid composition of table 3 embodiment 2 and pretreatment process parameter
[0035]
[0036] The Pb-Ca-Sn anode treated by this pretreatment process is used as the anode of electrolytic copper, and after electrolysis in copper electrolytic solution for 10 days, its oxygen evolution overpotential is stable at 530mV.
Embodiment 3
[0038] The pretreatment solution composition and pretreatment process parameters of this embodiment are shown in Table 4.
[0039] The pretreatment liquid composition of table 4 embodiment 3 and pretreatment process parameter
[0040]
[0041] The Pb-Ca-Sn anode treated by this pretreatment process is used as the anode of electrolytic copper, and after electrolysis in copper electrolytic solution for 10 days, its oxygen evolution overpotential is stable at 510mV.
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