Use of Over-Stoichiometric Flame for Post-Combustion, Burning VOC and Solid Fuel, Improving Its Efficiency, and Reducing the Carbon Footprint in Regular Process of Lead Recovery in Rotary Furnaces

The lead recovery process for automotive batteries is known to be not only a smelting process but also a chemical recovery process, including several reactions to have it done as pure metal (Pb). The traditional technology route includes shredded batteries, iron chips, and coal to reduce lead oxides into metallic lead. Although the market understands it as a usual process of direct reduction, therefore aiming reductant atmospheres and under-stoichiometric flames, SK Metais, through gas analyses, mass balances, and evaluation of the entire production stream, understood its process, chemical needs, and reactions, changing the standard process to become one of the most efficient facilities toward low emissions, and at meantime improving their throughputs.