Research advancement of efficient flotation separation technologies for magnesium-containing minerals

As high-grade magnesite and brucite resources(hereinafter referred to as magnesium-containing minerals)are decreasing annually,developing flotation separation technologies capable of efficiently and economically extracting magnesium resources from low-grade magnesium-containing minerals is necessary.Although efficient flotation separation technologies for magnesium-containing minerals are well researched,related concepts are not yet clarified.Moreover,the industrial development of magnesium-containing mineral flotation technologies is limited by their low separation efficiency and environmental problems.This limitation has inhibited the full utilization of low-grade magnesium-containing minerals.This study comprehensively discusses the research progress of flotation separation technologies for magnesium-containing minerals,focusing on the crystal chemical and surface characteristics of magnesium-containing minerals and their gangue minerals,effect of inevitable ions on mineral flotation behavior,interaction effects of minerals,and research advancement of flotation reagents.The study aims to clarify the future development direction of the flotation separation of magnesium-containing minerals and provide theoretical support and technical references for an efficient separation.