| abstract |
Provided is a recovery method of valuable metals from Pb-free waste solder and, more particularly, a method for recovery of Sn or Ag from Pb-free waste solder including Sn, Ag or a mixture thereof. The disclosed method for recovery of Sn or Ag from the Pb-free waste solder uses an electrolyte containing Cl- during electrolytic refining, therefore, has advantages of overcoming difficulties and reproducibility in existing processes for extraction, separation and purification of valuable metals from the waste solder and, in addition, efficiently and economically recovering Sn or Ag with high purity and high yield. |