Advances in depressants used for pyrite flotation separation from coal/minerals
Yulong Li1
Gan Cheng2
Mengni Zhang1
Yijun Cao3
Ee Von Lau4
1.College of Chemistry and Chemical Engineering,Henan Polytechnic University,Jiaozuo 454000,China2.College of Chemistry and Chemical Engineering,Henan Polytechnic University,Jiaozuo 454000,China;Henan Key Laboratory of Coal Green Transformation,Henan Polytechnic University,Jiaozuo 454000,China;Collaborative Innovation Center of Coal Work Safety and Clean High Efficiency Utilization,Henan Polytechnic University,Jiaozuo 454000,China3.School of Chemical Engineering,Zhengzhou University,Zhengzhou 450000,China4.School of Engineering,Monash University Malaysia,Selangor 47500,Malaysia
摘要：Pyrite is separated from other minerals mainly by flotation.However,the hydrophilicity of pyrite is affected by many factors,causing it to easily enter the concentrate and consequently reduce the quality of concentrate.Highly efficient pyrite depres-sants can be selectively adsorbed on the surface of pyrite to improve its hydrophilicity,thereby increasing the flotation separa-tion efficiency.Understanding the fundamental inhibition mechanism of depressants on pyrite is a prerequisite to improve the flotation desulfurization efficiency.The inhibition ability and mechanism of different types of pyrite depressants are reviewed in this manuscript.In recent years,molecular simulation has increasingly become a powerful tool to study the interaction between reagents and minerals,shedding new light on the adsorption mechanisms of reagents on mineral surfaces at the atomic and electronic levels.The properties of sulfide mineral and flotation reagents as well as the microscopic adsorption mechanistic studies of reagents on mineral surfaces based on quantum chemistry and molecular simulation are also reviewed.
机标关键词：separationfromadvancescoaldepressantsflotationmineralspyrite
论文发表日期：2022-08-28
在线出版日期：2025-08-15（本平台首次上网日期，不代表文献的发表时间）
页数：20( 29-48 )
英文信息