关键词: 浸出体系, 多尺度, 多相多场, 微生物浸矿, 研究进展

Abstract: As a kind of mature technology,heap leaching has been widely used to leach lowgrade ore,but its theory research is no perfect. Firstly,study scale partition of orerock granular in heap leaching is carried out. It is proposed that the visualization of multiscale spatial structure of orerock granular can be realized based on microscopic image analysis technology,CT technology and image processing technology. Through indepth analysis of linking scale,multiphase and multifield coupling,a series of problems to be solved at this stage are presented. Then,a number of researches about coupled numerical simulation of multiple processes are discussed in detail. With foreign research results on mechanism of microbial leaching,some research on microbial heap leaching is brought forward which regards native chalcopyrite as the research object. Finally,based on introduction of heap leaching technology at home and abroad,research difficulties of heap leaching theory are emphasized.

Key words: Leaching system, Multi-scale, Multi-phase and multi-field, Microbial leaching, Research progress