Slag Reduction Kinetics of a Lead Slag from a Secondary Lead Smelter

InReduction theLead slag classical Secondary lead pyrometallurgy route for lead smeltingLead smelting , the smelter produces a slag containing measurable quantities of leadLead . The leadLead in the slag is most often discharged from the smelter, leading to the disposal of significant quantities of leadLead . The slag needs to be safely stored to prevent the release of leadLead into the environment. In this work, the recovery of leadLead , and other deleterious elements, from a leadLead smelter slag has been investigated experimentally. Thermodynamic simulation was performed to determine the viability of a methane reductionReduction process. Based on the thermodynamic simulation and knowledge of the phases and distribution of elements between the phases in the smelter slag, methane reductionReduction was tested on a bench scale. A comparison between the thermodynamic predictions and observations provides an insight into the processes occurring during reductionReduction and the kinetic limitations of this process.