Hydrometallurgical processing of chalcopyrite:A review of leaching techniques  

作　　者：Darwin Michell Cheje Machaca Amilton Barbosa Botelho Junior Thamyres Cardoso de Carvalho Jorge Alberto Soares Tenório Denise Crocce Romano Espinosa 

机构地区：[1]Department of Chemical Engineering,University of Sao Paulo,São Paulo,Brazil

出　　处：《International Journal of Minerals,Metallurgy and Materials》2024年第12期2537-2555,共19页矿物冶金与材料学报（英文版）

基　　金：the Fundação de Amparo àPesquisa do Estado de São Paulo and Capes(grants:2019/11866-5,2020/00493-0,2021/14842-0,and 2023/01032-5 São Paulo Research Foundation)for financial support.

摘　　要：Copper,an essential metal for the energy transition,is primarily obtained from chalcopyrite through hydrometallurgical and pyrometallurgical methods.The risks and harmful impacts of these processes pose significant concerns for environmental and human safety,highlighting the need for more efficient and eco-friendly hydrometallurgical methods.This review article emphasizes current pro-cesses such as oxidative leaching,bioleaching,and pressure leaching that have demonstrated efficiency in overcoming the complicated chalcopyrite network.Oxidative leaching operates under benign conditions within the leaching media;nevertheless,the introduction of oxidizing agents provides benefits and advantages.Bioleaching,a non-aggressive method,has shown a gradual increase in copper extrac-tion efficiency and has been explored using both primary and secondary sources.Pressure leaching,known for its effectiveness and se-lectivity in copper extraction,is becoming commercially more viable with increased research investments.This research also provides im-portant data for advancing future research in the field.

关 键 词：chalcopyrite leaching BIOLEACHING ionic liquids CHLORIDE hydrogen peroxide 

分 类 号：TF811[冶金工程—有色金属冶金]