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常规的铅电解精炼是用并联法,即阳极和阴极在电路中并联放置。由于使用的始极片很薄,故很准实现电极出装槽机械化。双极电解精炼法是使电极串联放置,各个电极的一侧表面为阳极,而另一侧表面为阴极,这样就可能使电解精炼过程机械化,一个使用具有4米~2面积的电极的试验工厂已经工作厂18个月,其能力为3吨/日。试验表明,该法在技术上是可行的。试验工厂产出的是高纯铅,电流效率为90％,电解周期开始时的电流密度为625安/米~2,电解周期为5天。
Conventional lead electrolysis is the use of parallel method, that is, the anode and cathode placed in parallel in the circuit. Due to the use of very thin starting pole piece, it is very accurate implementation of the electrode out of slot mechanization. Bipolar electrolytic refining involves placing the electrodes in series, with each electrode having an anode on one side and a cathode on the opposite side, which may mechanize the electrolytic refining process. A pilot plant using electrodes with 4 to 2 area Has been working for 18 months, its capacity is 3 tons / day. Experiments show that this method is technically feasible. The pilot plant produces high-purity lead with a current efficiency of 90%, a current density of 625A / m 2 at the beginning of the electrolysis cycle, and an electrolysis cycle of 5 days.