Dynamic experiment and numerical simulation of solute transmission in heap leaching processing  

作　　者：刘金枝 吴爱祥 杨保华 江怀春 

机构地区：[1]School of Mathematical Sciences and Computing Technology, Central South University [2]Department of Electricity and Information Engineering, Hunan International Economics University

出　　处：《Journal of Central South University of Technology》2007年第6期838-841,共4页中南工业大学学报（英文版）

基　　金：Project(06JJ30024) supported by the Natural Science Foundation of Hunan Province, China;Project(2004CB619206) supported by the Major State Basic Research and Development Program of China;Project(50321402) supported by the National Science Fund for Innovative Research Groups of China;Project(06B052) supported by the Scientific Research Fund of Hunan Provincial Education Department of China

摘　　要：Solute transmission in saturated ore heap was studied numerically and experimentally. The convection-diffusion equation (CDE) used to describe the mass transportation in porous media was solved by characteristic difference method to give the distribution of the concentration of ferrous ion in the ore column. To calibrate the computational model, a column test was performed using infiltration of sulfide ferrous solution (the initial concentration is c0=0.04 mol/L) on a 100 cm high column composed of ore particles smaller than 10 mm for 2.5 h. The numerical analysis shows that the results obtained from numerical modeling under the same operating conditions as used for column test are in good agreement with those from experimental procedure on the whole trend, which indicates that the model, the numerical method, and the parameters chosen can reflect the rule of ferrous ion transmission in ore heap.Solute transmission in saturated ore heap was studied numerically and experimentally. The convection-diffusion equation （CDE） used to describe the mass transportation in porous media was solved by characteristic difference method to give the distribution of the concentration of ferrous ion in the ore column. To calibrate the computational model, a column test was performed using infiltration of sulfide ferrous solution （the initial concentration is C0=0.04 mol/L） on a 100 cm high column composed of ore particles smaller than 10 mm for 2.5 h. The numerical analysis shows that the results obtained from numerical modeling under the same operating conditions as used for column test are in good agreement with those from experimental procedure on the whole trend, which indicates that the model, the numerical method, and the parameters chosen can reflect the rule of ferrous ion transmission in ore heap.

关 键 词：heap leaching solute transmission dynamic experiment numerical solution 

分 类 号：TF803.21[冶金工程—有色金属冶金]