Kinetic Investigations of the Electrochemically Assisted Leaching of Metals for the Recycling of Photovoltaics

To describe and predict the leaching of Ag, Cu Sn from waste photovoltaic modules with an electrochemical-assisted process kinetic investigations were performed. In this process, peroxydisulfate is generated sulfuric acid to oxidize metals. It was found that under reaction conditions peroxymonosulfate formed as well has a major contribution process. For autocatalytic decomposition reagents determined be limiting step while for passivation influences The modeled three different types, batch reaction, in static H-cell continuous generation S₂O₈ 2− fed-batch electrochemical flow cell production peroxydisulfate.