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Trans. Nonferrous Met. Soc. China 22(2012) 2255-2260 Control method of chalcopyrite passivation in bioleaching PAN Hao-dan1, YANG Hong-ying1, TONG Lin-lin1, ZHONG Cong-bin2, ZHAO Yu-shan3 1. School..., Northeastern University, Shenyang 110819, China Received 5 April 2012; accepted 26 June 2012 Abstract: Passivation is a common phenomenon on the surface of chalcopyrite in the process of bioleaching......
Kinetics of chemical leaching of chalcopyrite from low grade copper ore: behavior of different size fractionsH. Naderi1,M. Abdollahy1,N. Mostoufi2,M.J. Koleini1,S.A. Shojaosadati31. Mining... (Eh), pH values, and temperature. The main copper mineral was chalcopyrite. About 40% of Cu recovery is obtained after 7 d of reactor leaching at 85℃ using -0.5 mm size fraction, while the same......
Selective depression mechanism of ferric chromium lignin sulfonate for chalcopyrite–galena flotation separationJin-sheng Yu1,Run-qing Liu1,Li Wang1,Wei Sun1,Hong Peng2,Yue-hua Hu11. School of Minerals Processing and Bioengineering,Central South University2. School of Chemical Engineering,The University of Queensland摘 要:Selective recovery of chalcopyrite......
Effect of pH values on the extracellular polysaccharide secreted by Acidithiobacillus ferrooxidans during chalcopyrite bioleachingRun-lan Yu1,2,Jing Liu1,2,Jian-xi Tan3,Wei-min Zeng1,2,Li-juan... on the extracellular polysaccharide secreted by Acidithiobacillus ferrooxidans was investigated in different phases of bacterial growth during chalcopyrite bioleaching. It is found that extracellular polysaccharide......
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Efficacy of chalcopyrite bioleaching using a pure and a mixed bacteriumMuqing Qiu1), Shuiying Xiong2), and Weimin Zhang2) 1) Institute of Ecology, College of Life Science, Zhejiang University... of chalcopyrite bioleaching using pure cultures of Thiobacillus ferrooxidans or Thiobacillus thiooxidans and a mixed culture composed of Thiobacillus ferrooxidans and Thiobacillus thiooxidans......
Stepwise dissolution of chalcopyrite bioleaching bythermophile A.manzaensis and mesophile L. ferriphilumGU Guo-hua(顾帼华)1, XIONG Xian-xue(熊先学)1, HU Ke-ting(胡可婷)1, LI Shuang-ke(李双棵)1, WANG Chong-qing..., China)Abstract:Chalcopyrite dissolution was evaluated by bioleaching and electrochemical experiments with thermophile A. manzaensis (Acidianus manzaensis) and mesophile L. ferriphilum (Leptospirillum......
Structural, microstructural, and thermal characterizations of a chalcopyrite concentrate from the Singhbhum shear zone, IndiaRitayan Chatterjee1,2,Shamik Chaudhuri1,Saikat Kumar Kuila1,Dinabandhu... and morphological characterizations of a chalcopyrite concentrate, collected from the Indian Copper Complex, Ghatshila, India, were carried out by X-ray diffraction, scanning electron microscopy......
Bioleaching and electrochemical properties of chalcopyrite by pure and mixed culture of Leptospirillum ferriphilum and Acidthiobacillus thiooxidansGU Guo-hua(顾帼华), HU Ke-ting(胡可婷), LI Shuang-ke(李双棵)(School of Minerals Processing and Bioengineering, Central South University, Changsha 410083, China)Abstract:The bioleaching of chalcopyrite was investigated using a pure and mixed culture consisting......
Hydrometallurgical application for treating a Nigerian chalcopyrite ore in chloride medium:Part I.Dissolution kinetics assessmentAlafara A.Baba1,Folahan A.Adekola1,Rafiu B.Bale3,Abdul G.F.Alabi5... & Metallurgical Engineering,University of Ilorin,P.M.B.1515摘 要:The dissolution kinetics of a Nigerian chalcopyrite ore in hydrochloric acid was studied......