【摘要】 原地溶浸开采受到孔隙介质中的流体流动、矿物溶解、水溶液组分扩散等多过程的耦合作用,其动力学过程可用溶解反应前锋运动来研究。从流体流动、溶解反应与扩散的耦合和反馈作用建立了反应前锋运动的动力学模型,分析了反应前锋的形态稳定性及其主要影响因素。流体流动与溶解反应的正反馈作用可导致复杂的反应前锋形态并对原地溶浸开采有重要影响。更多还原

【Abstract】 In-situ leach mining is controlled by multiple processes coupling such as fluid flow in porous medium, mineral dissolution, aqueous species diffusion. The dynamic process can be studied from the movement of dissolution reaction front. The dynamic model of reaction front propagation is established based on the coupling and feedback among fluid flow, dissolution and diffusion. The morphological stability of reaction front and the main factors that affect the stability are analysed. The positive feedback between fluid flow and dissolution reaction leads to complex reaction front morphologies and has important influence on in-situ leach mining.更多还原