Selective extraction of manganese content from process slag generated from lithium-ion battery black massTumul Dashora, Veeranjaneyulu Rayapudi, Priyadarshini Bais, Kadari Ramaswamy, Manikanta Jena, Ratheesh Ravendran, Ashok Kamaraj and Ajay KaushalMetall. Res. Technol., 122 4 (2025) 408DOI: https://doi.org/10.1051/metal/2025038