Experimental study on preferential solution flow during dump leaching of low-grade ores

被引：0
作者：
尹升华 [1 ]
吴爱祥 [1 ]
苏永定 [2 ]
张杰 [2 ]
机构：
[1] School of Civil and Environment Engineering, University of Science and Technology Beijing
[2] School of Resource and Safety Engineering, Central South University
来源：
Journal of Central South University of Technology | 2007年 / 04期
基金：
中国国家自然科学基金;
关键词：
low-grade ore; preferential solution flow; permeability; surface tension; applied rate;
D O I：
暂无
中图分类号：
TD91 [选矿理论];
学科分类号：
081902 ;
摘要：
The phenomenon of preferential solution flow during dump leaching of low-grade ores was studied.The formative mechanism of preferential solution flow was investigated through analyzing the relationship between permeability and ore diameter,and the relationship between surface tension and ore diameter.The preferential solution flow happened within the fine ore area when the dump was unsaturated.And it could happen within the coarse ore area when the dump became saturated.The results of experiment show that the outflow of coarse ore area increases sharply with higher applied rate.The outflow of fine ore area is greater than that of coarse ore area when the applied rate is below 3.2 L/min,and the preferential solution flow happens in fine ore area.But the preferential solution flow happens in coarse ore area when the applied rate is higher than 3.2 L/min.The result of the experiment is consistent with the mechanism analyzing.
引用
收藏
页码：584 / 588
页数：5
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