WU Ai-xiang, LIU Jin-zhi, TANG Ling-yan. Simulation of Coupled Flowing-Reaction-Deformation With Mass Transfer in Heap Leaching Processes[J]. Applied Mathematics and Mechanics, 2007, 28(3): 297-304.
Citation: WU Ai-xiang, LIU Jin-zhi, TANG Ling-yan. Simulation of Coupled Flowing-Reaction-Deformation With Mass Transfer in Heap Leaching Processes[J]. Applied Mathematics and Mechanics, 2007, 28(3): 297-304.

Simulation of Coupled Flowing-Reaction-Deformation With Mass Transfer in Heap Leaching Processes

  • Received Date: 2006-08-09
  • Rev Recd Date: 2006-12-28
  • Publish Date: 2007-03-15
  • Governing equations for a fully coupled Flowing-Reaction-Deformation behavior with Mass Transfer in heap leaching process were developed.These equations were solved using an explicit finite different method under the conditions of invarable application rate and constant hydraulic head.The distributions of the degree of the saturation as well as the distributions of the concentration of the reagent and the solute was given.A cubic relationship between the mineral recovery and the leaching duration is obtained based on the numerical results.The relationship can be used to predict the recovery percentage of the valuable metal.
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  • [1]
    李壮阔,桂斌旺,段希祥. 德兴铜矿堆浸厂的生产实践及技术研究[J]. 矿冶工程,2002,22(1):46-48.
    [2]
    刘汉钊,张永奎. 难处理低品位金矿细菌堆浸的现状和前景[J]. 四川地质学报,1998,18(3):234-240.
    [3]
    田原,关自斌,高仁喜.铀、金矿石的堆浸技术进展[J].铀矿冶,1998,17(2):121-126.
    [4]
    Pritzker M D. The role of migration in shrinking-core leaching reactions controlled by pore transport[J].Metallurgical and Materials Transactions B,1994,26B(4): 901-910.
    [5]
    Bartlett R W. A combined pore diffusion and chaicopyrite dissolution kinetics model for in-situ leaching of a fragmented copper porphyry[A].In:Proceedings of international Symposium on Hydrometallurgy[C].Teheran:University of Teheran,1973,331-374.
    [6]
    Nguyen V V,Gray W G,Casas J M,et al.A theoretical investigation on the transport of chemicals in reactive porous media[J].Water Resources Research,1982,18(4):1149-1156. doi: 10.1029/WR018i004p01149
    [7]
    Sheikhzadeh G A,Mehrabian A,Mansouri S H,et al.Computational modeling of unsaturated flow of liquid in heap leaching-using the results of column tests to calibrate the model[J].Heat and Mass Transfer,2005,48(6):279-292. doi: 10.1016/j.ijheatmasstransfer.2004.08.007
    [8]
    Sylvie C Bouffard, David G Dixon.Investigative study into the hydrodynamics of heap leaching processes[J].Metallurgical and Materials Transactions B,2001,3:393-408.
    [9]
    Sidborn M,Casas J,Martinez J,et al.Two-dimensional dynamic model of copper sulphide ore bed[J].Hydrometallurgy,2003,71(10):67-74. doi: 10.1016/S0304-386X(03)00178-6
    [10]
    吴爱祥, 刘金枝,尹升华,等.堆浸工艺中溶质运移的数学模型及其解析解[J]. 矿冶工程,2005,5:7-10.
    [11]
    Helmig R.Multiphase Flow and Transport Processes in the Subsurface: A Contribution to the Modeling of Hydrosystems[M].Berlin:Springer-Verlag,1997.
    [12]
    Lasaga A C.Chemical kinetics of water-rock interations[J].Journal of Geophysical Research,1984,89(2):4009-4025. doi: 10.1029/JB089iB06p04009
    [13]
    Dullien F A L.Porous Media: Fluid Transport and Pore Structure[M].New York: Academic Press, 1979:123-149.
    [14]
    Genuchten T Van. A Closed Form Equation for Predicting the Hydraulic Conductivity of Unsaturated Soils[J].Soil Sci Am,1980,44(5):892-898. doi: 10.2136/sssaj1980.03615995004400050002x
    [15]
    Robert W.Bartlett.Solution Mining: Leaching and Fluid Recovery of Minerals[M].Singapore: Gordon and Breach Science Publisher 1992: 147-186.
    [16]
    阙为民, 谭亚辉,曾毅君.原地浸出采铀反应动力学与溶质运移[M].北京: 原子能出版社, 2002:192-195.
    [17]
    Smith G D.Numerical Solution of Partial Differential Equations[M].London: Oxford University Press, 1965: 17-23.
    [18]
    王洪江.大型矿山排土场细菌强化浸出机理及新工艺研究[D].博士学位论文.长沙:中南大学,2006,26-46.
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