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:TD853.38 文献标志码:A 文章编号:1672-7207(2012)05-1851-07 Chemical precipitation and control in process of heap leaching... to control production of chemical precipitation. The results show that the main chemical precipitation in the process of heap leaching of high-alkali oxide copper ore is CaSO4·2H2O, belongs to the first......
Isolation and identification of moderately thermophilic acidophilic iron-oxidizing bacterium and its bioleaching characterization ZENG Wei-min(曾伟民)1, 2, WU Chang-bin(邬长斌)1, ZHANG Ru-bing(张汝兵)1... and physiological characteristics, 16S rRNA sequence and bioleaching characterization of strain ZW-1 were studied. The optimum growth temperature is 48 ℃, and the optimum initial pH is 1.9. The strain can......
of redox potential in the presence of mesophilic and thermophilic bacteria[J]. Hydrometallurgy, 2008, 93(3/4): 106-115. [9] Pradhan N, Nathasharma K C, Rao K S, et al. Heap bioleaching of chalcopyrite... model. Key words: chalcopyrite; Acidithiobacillus ferrooridans; surface passivation; bioleaching mechanism 黄铜矿是自然界中最主要的铜矿物,也是最难浸出的矿物之一[1].研究者们围绕细菌对黄铜矿浸出作用的机理开展了大量的研究工作并提出了一些理论,其中直接作用说和间接作用说机理占据主导地位......
. [4] Pradhan N, Nathsarma K C, Srinivasa Rao K, et al. Heap bioleaching of chalcopyrite: A review[J]. Minerals Engineering, 2007, 21: 355-365. [5] 李建华, 向秋林. 破碎花岗岩型铀矿石的酸法制粒堆浸[J]. 有色金属, 2004, 56(1... sulfide heap bioleaching concerning potential and heap constitution[J]. J Cent South Univ: Science And Technology, 2006, 37(6): 1087-1093. [9] 尹升华, 吴爱祥. 微生物浸出过程溶质迁移方式及其影响因素研究[J]. 矿冶, 2008, 17(1......
: Society for Mining, Metallurgy, and Exploration, 2008: 29-42. [4] PRADHAN N, NATHSARMA K C, RAO K S, SUKLA L B, MISHRA B K. Heap bioleaching of chalcopyrite: A review[J]. Minerals Engineering, 2008, 21(5...]. Changsha: Central South University, 2011. [11] LIU X, CHEN B, WEN J, RENMAN R. Leptospirillum forms a minor portion of the population in Zijinshan commercial non-aeration copper bioleaching heap identified......
]. Hydrometallurgy, 2010, 104(3): 216-221. [7] DOPSOM M, LOVGREN L, BOSTROM D. Silicate mineral dissolution in the presence of acidophilic microorganisms: Implications for heap bioleaching[J... is controlled mainly by the indirect mechanism during bioleaching process in 0-6 d, and mainly by the direct mechanism in 6-15 d. However, the release of Si is determined mainly by the indirect mechanism......
J. Cent. South Univ. (2017) 24: 2431-2437 DOI: https://doi.org/10.1007/s11771-017-3654-y Evaluation of spontaneous combustion tendency of sulfide ore heap based on nonlinear parameters PAN Wei(潘伟)1... combustion tendency of different areas in sulfide ore heap, ore samples from a pyrite mine in China were taken as experimental materials, and the temperature variations of the measuring points of simulated ore......
Optimization of separation processing of copper and iron of dump bioleaching solution by Lix 984N in Dexing Copper Mine LIU Qing-ming(刘清明)1, 2, YU Run-lan(余润兰)1, 3, QIU Guan-zhou(邱冠周)1, 3, FANG... value of aqueous phase and extraction time on the extraction of copper and iron under the condition of low Cu2+ /Fe3+ ratio in dump bioleaching solution of Dexing Copper Mine were explored. The optimal......
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J. Cent. South Univ. (2020) 27: 1466-1476 DOI: https://doi.org/10.1007/s11771-020-4382-2 Influence diversity of extracellular DNA on bioleaching chalcopyrite and pyrite by Sulfobacillus... thermosulfidooxidans ST was selected for use in bioleaching of pyrite and chalcopyrite. The adsorption experiments revealed that more cells were adsorbed on the surface of pyrite than on the surface of chalcopyrite......
