| 摘要 |
The purpose of the invention is to provide a method that, when recovering a precious metal from an aqueous solution containing a water-soluble sulfur compound and the precious metal by electrolysis, is able to prevent the deposition of the precious metal on surfaces other than the cathode such as the anode or a wall surface of the electrolytic cell, etc. without using a chemical. The essence of this method for recovering a precious metal is that, when recovering the precious metal from an aqueous solution containing a water-soluble sulfur compound and the precious metal by electrolysis, a gas is supplied into the aqueous solution so that the redox potential of the aqueous solution during the electrolysis is -500 mV to +100 mV. |
