典型文献
Electrochemical dissolution behavior of gold and its main coexistent sulfide minerals in acid thiocyanate solutions
文献摘要：
Electrochemical tests were developed to inves-tigate the electrochemical dissolution behavior of gold and its main coexistent sulfide minerals in acid thiocyanate solutions.The optimal leaching conditions for gold in acidic thiocyanate system were pH 2,0.15 mol·L-1 thio-cyanate and 0.2 g·L-1 Fe3+.Fe3+ addition to the acidic thiocyanate system promoted gold dissolution significantly,arsenopyrite dissolution was inhibited,chalcopyrite disso-lution was increased,and the dissolution behavior of other associated minerals remained mostly unchanged.Thio-cyanate made gold and associated mineral leaching easier.The galvanic corrosion effect of gold and its main coex-istent sulfide minerals in an acidic thiocyanate-free system was that the chalcocite,arsenopyrite and pyrite acted as a cathode to reduce anodic gold dissolution;galena as an anode undergoes oxidation to inhibit anodic gold dissolu-tion.There was almost no galvanic corrosion behavior between stibnite,yellow sphalerite and black sphalerite and gold.Thiocyanate addition changed the galvanic corrosion behavior of stibnite and yellow sphalerite in the thio-cyanate system,which inhibited anodic gold dissolution.In the acidic thiocyanate system in the presence of ferric iron,the arsenopyrite promoted anodic gold dissolution,the chalcocite and gold were mostly free of galvanic corrosion,and the remaining minerals inhibited anodic gold dissolution.
文献关键词：
中图分类号：
作者姓名：
Guan Le;Wen-Juan Li;Kun Song;Yong-Sheng Song;Yong Chen;An-Ping Bai;Yu Cheng
作者机构：
National Engineering Laboratory of Biohydrometallurgy,GRINM Group Co.,Ltd.,Beijing 100088,China;GRINM Resources and Environment Tech.Co.,Ltd.,Beijing 101407,China;General Research Institute for Nonferrous Metals,Beijing 100088,China;School of Chemical and Environmental Engineering,China University of Mining and Technology,Beijing 100083,China;GRIMAT Engineering Institute Co.,Ltd.(GRIMAT),Beijing 101407,China;Jiangxi Copper Technology Research Institute Co.,Ltd,Nanchang 330096,China;Beijing Vocational College of Labour and Social Security,Beijing 102200,China;Jiangsu East China Mineral Exploration and Development Bureau,Nanjing 210007,China
文献出处：
引用格式：
[1]Guan Le;Wen-Juan Li;Kun Song;Yong-Sheng Song;Yong Chen;An-Ping Bai;Yu Cheng-.Electrochemical dissolution behavior of gold and its main coexistent sulfide minerals in acid thiocyanate solutions)[J].稀有金属（英文版）,2022(01):254-261
A类：
arsenopyrite,Thio,coex,istent,chalcocite,Thiocyanate
B类：
Electrochemical,dissolution,behavior,gold,its,coexistent,sulfide,minerals,thiocyanate,solutions,tests,were,developed,inves,tigate,electrochemical,optimal,leaching,conditions,acidic,system,Fe3+,addition,promoted,significantly,was,inhibited,chalcopyrite,increased,other,associated,remained,mostly,unchanged,made,easier,galvanic,corrosion,effect,free,that,acted,cathode,reduce,anodic,galena,anode,undergoes,oxidation,There,almost,between,stibnite,yellow,sphalerite,black,which,In,presence,ferric,iron,remaining
AB值：
0.308491
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