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J. Cent. South Univ. Technol. (2007)06-0838-04 DOI: 10.1007/s11771-007-0159-0 Dynamic experiment and numerical simulation of solute transmission in heap leaching processing LIU Jin... indicates that the model, the numerical method, and the parameters chosen can reflect the rule of ferrous ion transmission in ore heap. Key words: heap leaching; solute transmission; dynamic experiment......
in this study. The results showed that the main microorganisms in the heap were A. ferrooxidans, F. acidiphilum and L. ferrodiazotrophum. Under their combined action, gold leaching extent rose from 35.62... leaching extent by sulfur oxidation extent. These results provided good guidance for practical application in the actual production. Key words: heap biooxidation; gold ore; microbial community; fitting......
Evolvement of permeability of ore granular media during heap leaching based on image analysis YANG Bao-hua(杨保华)1, 2, WU Ai-xiang(吴爱祥)3, JIANG Huai-chun(江怀春)4, CHEN Xue-song(陈学松)1 1. School... after leaching decreases by 39.65% that coincides with the measured experimental data. Key words: ore granular media; heap leaching; permeability; CT; image analysis  ......
% of the total world production [3-4]. Heap leaching is a mineral processing technology where large piles of crushed or run-of-mine rocks are leached with various chemical solutions to extract valuable..., mathematic models can be used to simulate, optimize and improve the heap leaching operations with respect to lixiviant consumption, overall recovery and efficiency. There are a number of factors......
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bioleaching.However,industrial leaching rate of chalcopyrite heap bioleaching is lower.This paper described the development status and industrial test of chalcopyrite heap bioleaching technology.The reasons...Feasibility study on heap bioleaching of chalcopyriteBo-Wei Chen,Jian-KangNational Engineering Laboratory of Biohydrometallurgy,General Research Institute for Nonferrous Metals摘 要:
Simulated small-scale pilot heap leaching of low-grade copper sulfide ore with selective extraction of copper QIN Wen-qing(覃文庆), ZHANG Yan-sheng(张雁生), LI Wei-zhong(黎维中), WANG Jun(王 军) School... extraction of copper were investigated. Lix984 dissolved in kerosene was used as extractant. The results show that it is possible to selectively leach copper from the ores by heap leaching. The copper......
J. Cent. South Univ. Technol. (2011) 18: 848-853 DOI: 10.1007/s11771-011-0772-9 Simulation of pore scale fluid flow of granular ore media in heap leaching based on realistic model YANG Bao-hua(杨保.... There exist some pore clusters with different pressures, which is the basic reason for the uneven flow velocity distribution. Key words: heap leaching; granular ore; fluid flow; image processing......
concentration; temperature distribution; copper leaching rate Cite this article as: HUANG Ming-qing, WU Ai-xiang. Numerical analysis of aerated heap bioleaching with variable irrigation and aeration combinations... pipelines that were installed beneath the heap. However, due to the opposite flow direction of leaching solution and aerated gas, the supply of oxygen becomes difficult or invalid, or leads to massive power......
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