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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......
, lower the pH value and increase the redox potential of solution, which results in better bioleaching performance. However, too much aeration will cause strong shear force that may damage the cells...] in a pyrite bioleaching experiment. This is mainly because the dissolution of minerals is primarily limited to the specific surface area of mineral in per unit volume of solution; also, it is limited to CO2......
Influence of surfactants on bioleaching of arsenic-containing gold concentrateFANG Fang(方芳)1, 2, 3, ZHONG Hong(钟宏)1, 3, JIANG Fang-ming(江放明)1, 3, LI Zhao-hui(李朝辉)2, CHEN Yong-fa(陈永发)2, ZHAN Xue-hui... and Technology,Changsha 410114, China;3. Key Laboratory of Resources Chemical of Nonferrous Metals of Ministry of Education(Central South University), Changsha 410083, China)Abstract:To shorten the bioleaching......
time on gold dissolution in cyanide solution [J]. Minerals, 2016, 6(3): 1-9. DOI:10.3390/min6030068. [23] YANG Yu, DIAO Meng-xue, LIU Kai, QIU Guan-zhou. Column bioleaching of low-grade copper ore... J. Cent. South Univ. (2021) 28: 1333-1341 DOI: https://doi.org/10.1007/s11771-021-4706-x Effect of particle size on bioleaching of low-grade nickel ore in a column reactor WANG Xin(王欣), YANG Hong......
Mineral characterization In bioleaching, minerals were oxidized by microorganisms and dissolved into solution. In this work, 80% of pyrite dissolved in solution after bioleaching. The mineral phases... J. Cent. South Univ. (2020) 27: 1477-1483 DOI: https://doi.org/10.1007/s11771-020-4383-1 Changes of microbial diversity during pyrite bioleaching YIN Lu(殷璐), YANG Hong-ying(杨洪英), LI Xiang(李想), TONG......
-grade copper sulphides under the condition of preferential solution flow was investigated through experiments. The experiment of bioleaching was conducted within the multifunction autocontrol bioleaching... ores by bacteria and solution. The soluble metals were carried out by the flow of solution [7-8]. The six steps during bioleaching are outer diffusion, inner diffusion, leaching reaction, process......
; leaching reaction; solution flow; solute transport 1 Introduction Bioleaching is found to have important applications in the recovery of copper, gold, silver, and uranium from their ores because of its...J. Cent. South Univ. Technol. (2011) 18: 1434-1440 DOI: 10.1007/s11771-011-0858-4 Mathematical model for coupled reactive flow and solute transport during heap bioleaching of copper sulfide YIN......
J. Cent. South Univ. Technol. (2007)04-0460-07 DOI: 10.1007/s11771-007-0090-4 Comparison of microbial communities in three different mine drainages and their bioleaching efficiencies to low grade... (Dexing Copper Mine, Qibaoshan Copper Mine and Yaogangxian Tungsten Mine, China) were analyzed using 16S rDNA PCR-RFLP approach. The efficiencies of chalcopyrite bioleaching were compared using......
in the bioleaching solutions were analyzed each day. The bis(cyclohexanone)oxaldihydrazone (BCO) light-intensity method was used to quantify the concentration of copper in solution [30]. Ferrous and total... 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......
A new strain Acidithiobacillus albertensis BY-05 for bioleaching of metal sulfides ores XIA Jin-lan(夏金兰), PENG An-an(彭安安), HE Huan(何 环), YANG Yu(杨 宇), LIU Xue-duan(刘学端), QIU Guan-zhou(邱冠周) Key... has 100% sequence similarity to that of Acidithiobacillus albertensis (DSM 14366). So it is identified and named as A. albertensis BY-05. Bioleaching experiments with this new strain show that it can......
