| Title | Eco-Friendly Electrowinning for Metals Recovery from Waste Electrical and Electronic Equipment (WEEE) |
|---|---|
| ID_Doc | 10198 |
| Authors | Cesiulis, H; Tsyntsaru, N |
| Title | Eco-Friendly Electrowinning for Metals Recovery from Waste Electrical and Electronic Equipment (WEEE) |
| Year | 2023 |
| Published | Coatings, 13, 3 |
| Abstract | The amount of waste electrical and electronic equipment (WEEE) has been intensely increasing over the recent decades. In this view, the efficient recovery of metals from WEEE will allow a secure supply of raw materials and will contribute to a circular economy. Among many factors currently affecting the contribution of recycling, is the lack of suitable technologies for WEEE treatment in an environmentally friendly way. Current trends in eco-friendly technologies applied for gold, silver, copper, and tin recovery by electrowinning are reviewed in this paper. In addition, a case study on the perspectives of tin electrowinning has been evaluated. Tin can be present in rather high quantities in WEEE; moreover, its price is about three times higher than that for copper. The electrorecovery of tin has been carried out in cooperation with JSC "Elektronikos perdirbimo technologijos". The eco-friendly process based on electrowinning from citric acid-containing leachates is elaborated. The citrate-based solutions have been chosen because citric acid is considered to be an environmentally friendly component. A high deposition rate and current efficiency have been achieved at a deposition potential -0.85 V at 60 degrees C. However, additional steps would be beneficial to diminish the interference of metals present in the scraps, such as Pb(II) and Cu(II), on tin electrorecovery. |
| https://www.mdpi.com/2079-6412/13/3/574/pdf?version=1678181886 |
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