Selective flotation of chalcopyrite and molybdenite:A review of depressant applicationsOA
Copper and molybdenum are critical strategic metals essential to emerging industries and national defense.They are primarily extracted from chalcopyrite(CuFeS_(2))and molybdenite(MoS_(2)),respectively.Efficient and selective flotation of Cu-Mo sulfide ores-a key step in developing porphyry deposits-relies on the targeted modification of chalcopyrite and molybdenite surface properties by depressants.These depressants are generally classified as either inorganic or organic.To clarify the fundamental mechanisms of flotation and depression,this review examines the surface physicochemical properties of chalcopyrite and molybdenite.It also critically evaluates recent advances in depressant development,including inorganic agents,organic agents,and eco-friendly alternatives such as polysaccharides.The active components of current depressants are categorized,and a comprehensive analysis of their separation performance,toxicity,and cost in Cu-Mo sulfide ore flotation is presented.Finally,this review proposes a forward-looking framework for designing next-generation depressants through a multidisciplinary approach grounded in green chemistry.This perspective addresses current challenges while promoting sustainable and efficient exploitation of Cu-Mo resources.
Mengyao Qi;Pengyu Wang;Weijun Peng;Wei Wang;Yijun Cao;Longyu Zhang;Yukun Huang
School of Chemical Engineering,Zhengzhou University,Zhengzhou 450001,ChinaZhongyuan Critical Metals Laboratory(Zhengzhou University),Zhengzhou 450001,ChinaSchool of Chemical Engineering,Zhengzhou University,Zhengzhou 450001,China Zhongyuan Critical Metals Laboratory(Zhengzhou University),Zhengzhou 450001,China The Key Lab of Critical Metals Minerals Supernormal Enrichment and Extraction,Ministry of Education,Zhengzhou 450001,ChinaSchool of Chemical Engineering,Zhengzhou University,Zhengzhou 450001,China Zhongyuan Critical Metals Laboratory(Zhengzhou University),Zhengzhou 450001,China The Key Lab of Critical Metals Minerals Supernormal Enrichment and Extraction,Ministry of Education,Zhengzhou 450001,ChinaSchool of Chemical Engineering,Zhengzhou University,Zhengzhou 450001,China Zhongyuan Critical Metals Laboratory(Zhengzhou University),Zhengzhou 450001,China The Key Lab of Critical Metals Minerals Supernormal Enrichment and Extraction,Ministry of Education,Zhengzhou 450001,ChinaSchool of Chemical Engineering,Zhengzhou University,Zhengzhou 450001,ChinaSchool of Chemical Engineering,Zhengzhou University,Zhengzhou 450001,China Zhongyuan Critical Metals Laboratory(Zhengzhou University),Zhengzhou 450001,China The Key Lab of Critical Metals Minerals Supernormal Enrichment and Extraction,Ministry of Education,Zhengzhou 450001,China
矿业与冶金
ChalcopyriteMolybdeniteDepressantsFlotation separationSurface propertiesSelectivity
《Green and Smart Mining Engineering》 2026 (1)
P.27-40,14
Project of Zhongyuan Critical Metals Laboratory(No.GJJSGFYQ202334)Natural Science Foundation of Henan Province(No.242300420002)National Key Research and Development Program(NO.2020YFC1908804)National Natural Science Foundation of China(No.51804275)。
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