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J. Cent. South Univ. (2016) 23: 2935-2940 DOI: 10.1007/s11771-016-3357-9 Nonlinear chaotic characteristic in leaching process and prediction of leaching cycle period LIU Chao(刘超), WU Ai-xiang(吴爱祥... 100083, China Central South University Press and Springer-Verlag Berlin Heidelberg 2016 Abstract: A laboratory leaching experiment with samples of different grades was carried out, and an analytical......
用此工艺后,浸堆的渗透系数增加为原矿的8~50倍,综合浸出率由不到10%提高到63.98%,使高含泥氧化铜矿得到成功堆浸.关键词:高含泥;低渗透性;堆浸;水洗-分级;浸出率Craft of wash-classification of heap leaching used in high-clay copper oxide oreWANG Shao-yong1,2, WU Ai-xiang1,2... particles with size of ?1 mm are in tank leaching and agitation leaching, the ore particles with sizes of +1~ -5 mm and +5 ~ -25 mm are in heap leaching with classification dump and partition liquid......
J. Cent. South Univ. Technol. (2008) 15: 824-829 DOI: 10.1007/s11771-008-0152-2 Selective leaching of chromium-containing slag by HCl YANG Zhi-hui(杨志辉), CHAI Li-yuan(柴立元), WANG Yun-yan(王云燕... of Cr(Ⅵ) concentration leached out from chromium-containing slag with HCl as leaching agent, and to study influences of pH, ratio of solid mass to solution volume, flow velocity and temperature on Cr......
of pyrite oxidation and acid mine drainage in unsaturated waste rock piles[J]. Journal of Contaminant Hydrology, 2005, 78(4): 343-371. [5] BOUFFARD S C. Agglomeration for heap leaching: Equipment design... Ai-xiang, AI Chun-ming, WANG Yi-ming, HU Kai-jian. Influence of surfactant on permeability of heap leaching of copper ore[J]. Journal of Central South University (Science and Technology), 2014, 45(3......
Trans. Nonferrous Met. Soc. China 26(2016) 835-841 Effect of ore size and heap porosity on capillary process inside leaching heap Sheng-hua YIN1, Lei-ming WANG1, Xun CHEN1, Ai-xiang WU2 1. Key..., University of Science and Technology Beijing, Beijing 100083, China Received 27 April 2015; accepted 4 December 2015 Abstract: The capillary process coexists with gravity flow within leaching heap due......
高含泥氧化铜矿石分粒级筑堆技术及其应用王洪江1,吴爱祥1,顾晓春2,张新普3,张仪3(1.北京市北京科技大学土木与环境工程学院2.云南铜业集团公司3.迪庆矿业开发有限责任公司)摘 要:高含泥氧化矿石浸堆因渗透性差而影响堆浸的正常进行.渗透试验表明,高含泥氧化矿石矿堆的渗透性与矿石粒级组成密切相关,采取矿石堆浸粒级划分:-1 mm为泥质物,+5 mm为块状矿,5~1 mm之间为粉状矿.在此基础上,提出了分粒级筑堆技术,即先对矿石进行分级,然后按粒级分区筑堆,对不同粒级浸堆采用不同的布液强度.该项技术应用在云南某铜......
of 210 d. Lump ores as a framework were loaded at the bottom of the ore heap. The overall copper leaching rates of tailings and lump ores were 57.10wt% and 65.52wt%,respectively. The dynamic shifts...Thin-layer heap bioleaching of copper flotation tailings containing high levels of fine grains and microbial community succession analysisXiao-dong Hao1,2,Yi-li Liang1,2,Hua-qun Yin1,2,Hong-wei......
plant in China of bio-heap leaching with a capacity of 10 000 t/a started operation at the Zijinshan Copper Mine in the end of 2005[1]. Due to the relatively high proportion of pyrite in the ore (up... microbial community within the heap is essential. Within the bacteria assisted heap leaching operated at ambient temperature, bacterial strains related to Acidithiobacillus thiooxidans, Acidithiobacillus......
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献标志码:A 文章编号:1672-7207(2014)03-0895-07 Influence of surfactant on permeability of heap leaching of copper ore WU Aixiang, AI Chunming, WANG Yiming, HU... steps of surfactant’s improving heap permeability were concluded as altering ore wettability, reducing leaching solution viscosity, absorbing on ore surfaces and ultimately enhancing permeability......