Advances in depressants used for pyrite flotation separation from coal/minerals

Abstract Pyrite is separated from other minerals mainly by flotation. However, the hydrophilicity of pyrite affected many factors, causing it to easily enter concentrate and consequently reduce quality concentrate. Highly efficient depressants can be selectively adsorbed on surface improve its hydrophilicity, thereby increasing flotation separation efficiency. Understanding fundamental inhibition mechanism a prerequisite desulfurization The ability different types are reviewed in this manuscript. In recent years, molecular simulation has increasingly become powerful tool study interaction between reagents minerals, shedding new light adsorption mechanisms mineral surfaces at atomic electronic levels. properties sulfide as well microscopic mechanistic studies based quantum chemistry also reviewed.