Metals : open access journal 12(11), 1802 (2022). doi:10.3390/met12111802 special issue: "Special Issue "Advances in Understanding of Unit Operations in Non-ferrous Extractive Metallurgy 2023" / Special Issue Editors: Dr. Srecko Stopic, Guest Editor; Prof. Dr. Bernd Friedrich, Guest Editor" Metals; Volume 12; Issue 11; Pages: 1802