典型文献
Effect of deep oxidation of chalcopyrite on surface properties and flotation performance
文献摘要：
In this study,chalcopyrite was oxidized in hydrogen peroxide(H2O2)solutions of different concentrations to simulate different degrees of oxidation in real ores,and the effects of H2O2 treatment on chalcopyrite surface properties and flotation performance were investigated by surface analysis techniques and floata-tion experiments,which implied the reason for the poor grade and recovery of oxidized chalcopyrite con-centrate in the production process of the ore.Flotation results showed that when the concentration of H2O2 increased from 0％(by weight)to 5％,the flotation recovery of chalcopyrite decreased sharply.However,with increasing H2O2 concentration from 5％to 30％,chalcopyrite recovery improved relatively to different degrees with different collector concentrations.Analyses of X-ray photoelectron spectroscopy(XPS)and inductively coupled plasma-atomic optical emission spectrophotometry(ICP-OES)results indi-cated that the pretreatment with H2O2 caused that hydrophilic substance formed on chalcopyrite surface with the dissolution of copper ions,and the dissolution amount of copper increased with the increase of H2O2 concentration.UV-visible spectrophotometer and Fourier transform infrared spectrum(FTIR)stud-ies indicated that the pretreatment of chalcopyrite with H2O2 had little effect on the adsorption amount of potassium butyl xanthate(PBX)on chalcopyrite surface.However,due to the dissolution of copper ions,PBX interacted with chalcopyrite mainly as buthyl dixanthogen(BX)2.
文献关键词：
中图分类号：
作者姓名：
Qingyun Luo;Qing Shi;Dezhi Liu;Binbin Li;Saizhen Jin
作者机构：
School of Minerals Processing and Bioengineering,Central South University,Changsha 410083,China;Key Laboratory of Hunan Province for Clean and Efficient Utilization of Strategic Calcium-containing Mineral Resources,Central South University,Changsha 410083,China
文献出处：
引用格式：
[1]Qingyun Luo;Qing Shi;Dezhi Liu;Binbin Li;Saizhen Jin-.Effect of deep oxidation of chalcopyrite on surface properties and flotation performance)[J].矿业科学技术学报（英文版）,2022(04):907-914
A类：
floata,centrate,buthyl,dixanthogen
B类：
Effect,deep,oxidation,chalcopyrite,surface,properties,flotation,performance,In,this,study,was,oxidized,hydrogen,peroxide,H2O2,solutions,different,concentrations,simulate,degrees,real,ores,effects,were,investigated,by,analysis,techniques,experiments,which,implied,reason,poor,grade,recovery,production,process,Flotation,results,showed,when,increased,from,weight,decreased,sharply,However,increasing,improved,relatively,collector,Analyses,ray,photoelectron,spectroscopy,XPS,inductively,coupled,plasma,atomic,optical,emission,spectrophotometry,ICP,OES,pretreatment,caused,hydrophilic,substance,formed,dissolution,copper,amount,UV,visible,spectrophotometer,Fourier,transform,infrared,spectrum,FTIR,indicated,had,little,adsorption,potassium,butyl,xanthate,PBX,due,interacted,mainly
AB值：
0.475701
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