The extraction of lead by direct electrolysis of lead sulfide using lead silicofluoride, lead borofluogide, lead acetate, lead nitrate, and lead perchlorate solution as electrolytes has been studied.
The results were as follows:
The sulfide anodes revealed passivity in a short time with lead silicofluoride electrolyte. Their dissolution was not smooth. with lead borofluoride, lead acetate and lead nitrate solution, while in the perchlolate solution, they dissolved successfully.
The prolonged electrolysis was then carried out with some lead concentrates as anode using lead perchlorate solution.
It was fot.md that the richer the concentration become, the better the anodic dissolution proceeded.