Gold Recovery from Scrap Electronic Solders by Fused-Salt Electrolysis

摘要

The report discusses a process for recovering gold and refining tin-lead solders from scrap solder discarded by the electronics industry. Contaminated solder can be refined by electrotransport in a molten-salt chloride electrolyte. Refined solder is recovered at the cathode, and the gold and other metal impurities are concentrated at the anode, increasing gold concentration from 60 to 15,000 oz/ton without any significant loss. The gold is then reclaimed by conventional fire-refining methods. (Author)