Effect of mechanical activation on thiosulfate leaching of gold from complex sulfide concentrate

被引：36
作者：
Hashemzadehfini, Mohsen [1 ]
Ficeriova, Jana [2 ]
Abkhoshk, Emad [3 ]
Shahraki, Behrouz Karimi [1 ]
机构：
[1] Iran Mineral Proc Res Ctr, Karaj, Iran
[2] Slovak Acad Sci, Inst Geotech, Kosice 4504353, Slovakia
[3] Islamic Azad Univ, Dept Min Engn Sci & Res Branch, Tehran, Iran
来源：
TRANSACTIONS OF NONFERROUS METALS SOCIETY OF CHINA | 2011年 / 21卷 / 12期
关键词：
mechanical activation; thiosulfate leaching; refractory ore; extraction of gold; ORE; RECOVERY; ARSENOPYRITE; DISSOLUTION; SPHALERITE; ILMENITE; SILVER; PYRITE; ZINC;
D O I：
10.1016/S1003-6326(11)61118-7
中图分类号：
TF [冶金工业];
学科分类号：
0806 ;
摘要：
The use of mechanical activation to enhance gold recovery from a CuPbZn complex sulfide concentrate was investigated. The effects of milling time, ball size, sample to ball ratio and milling speed on thiosulfate leaching were studied. Under optimum conditions of milling time 1 h, ball size 20 mm, sample to ball ratio 1/15 and mill speed 600 r/min, nearly 78% of sample is amorphized, particle size decreases from d(100)=30 mu m to d(100)=8 mu m, specific surface area increases from 1.3 m(2)/g to 4.6 m(2)/g and gold recovery enhances from 17.4 % in non-activated sample to 73.26 %.
引用
收藏
页码：2744 / 2751
页数：8
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