原地浸出采矿中溶浸剂的作用机理与流动特性

分析了溶浸剂的作有机理，认为原地浸出过程是一个多相反应动力学过程，浸出速度与溶解化学反应速度、反应物和生成物的扩散速度等因素有关。根据多相反应扩散动力学理论，建立了地浸中化学溶浸剂溶浸开采金属的数学模型。在假定裂隙岩体为拟连续介质，流体在整个岩体中的流动规律服从Darcy定律的条件下，导出溶浸剂在裂隙介质中的流动物性方程和渗流数学模型。

Mechanism and Fluidity of Solvents in In-situ Leaching

The mechanism of the leaching solvents in a leaching operation is discussed. It is concluded that in-situ leaching is a dynamic process involving chemical reactions among multiple phases in which the leaching rate of target metals is dependent on the rate of chemical dissolution as well as on the diffusion rates of reactants and resultants. Based on the theory of dynamical diffusion in multi-phase reactions, a mathematical model is created for metal recovery in leaching. The constitute equations of seepage of solvents and the seepage modelin in the fissured rockmass are deduced under the supposition that the fissured rockmass be considered as a similar continuous medium and the flowing of the fluid in the whole rockmass would obey the law of Darcy.