Industrial Minerals Flotation

This Special Issue of Minerals, “Industrial Mineral Flotation—Fundamentals and Applications,” presents eight contributions that collectively advance the science and practice of flotation in industrial mineral processing. The papers cover a wide range of topics, from molecular-level insights into mineral–reagent interactions, bubble dynamics, and interfacial phenomena, to innovative engineering solutions that enhance separation efficiency. Fundamental studies explore the flotation mechanisms of spodumene, dolomite, apatite, and sulfide ores, providing new perspectives on reagent chemistry and interfacial control. Complementing these are applied investigations into rare-earth recovery, copper extraction from slags, ultrasonic-assisted flotation, and emulsion flotation for difficult-to-float coals. Collectively, these works underscore the essential role of flotation not only in traditional ores but also in critical minerals, waste reprocessing, and sustainable energy technologies. Looking forward, integration of computational modeling, novel reagents, and advanced process technologies with digitalization and green chemistry will further shape the future of flotation. This Special Issue offers valuable perspectives for both researchers and practitioners, emphasizing the ongoing importance of flotation to industrial minerals, critical raw materials, and the circular economy.