Relevant bibliographies by topics / Copper ores – Zambia – Analysis

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Academic literature on the topic 'Copper ores – Zambia – Analysis'

Author: Grafiati
Published: 4 June 2021
Last updated: 17 February 2022

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Journal articles on the topic "Copper ores – Zambia – Analysis"

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Liang, Yi Li, Hua Qun Yin, Yun Hua Xiao, et al. "Microbial Leaching of Copper from Tailings of Low Grade Sulphide Ores in Zambia." Advanced Materials Research 1130 (November 2015): 473–76. http://dx.doi.org/10.4028/www.scientific.net/amr.1130.473.

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Demand for copper is growing in the world,which makes it increasingly necessary to process low-grade ores and tailings that used to be considered as wastes. The development and application of bioleaching by acidophilic chemolithotrophic microorganisms, which obtain energy from the oxidation of sulfide minerals and use carbon dioxide for constructive metabolism, has been a major approach for processing the low-grade copper ores. In this study, mixed culture consisted of six iron and sulfur oxidizing microorganisms were used in leaching of flotation and acid-leaching tailings obtained from Zambi
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Ngom, Baba, Yili Liang, and Xueduan Liu. "Cross-Comparison of Leaching Strains Isolated from Two Different Regions: Chambishi and Dexing Copper Mines." BioMed Research International 2014 (2014): 1–11. http://dx.doi.org/10.1155/2014/787034.

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A cross-comparison of six strains isolated from two different regions, Chambishi copper mine (Zambia, Africa) and Dexing copper mine (China, Asia), was conducted to study the leaching efficiency of low grade copper ores. The strains belong to the three major species often encountered in bioleaching of copper sulfide ores under mesophilic conditions:Acidithiobacillus ferrooxidans,Acidithiobacillus thiooxidans, andLeptospirillum ferriphilum. Prior to their study in bioleaching, the different strains were characterized and compared at physiological level. The results revealed that, except for cop
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Sun, Jia Lin, Ba Ba Ngom, Yi Liu, et al. "Comparison of Indigenous and Exogenous Mesophilic Bacteria for the Bioleaching of Low Grade Copper Ores." Advanced Materials Research 825 (October 2013): 58–61. http://dx.doi.org/10.4028/www.scientific.net/amr.825.58.

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Using indigenous microorganisms in biomining processes assures few ecological distortions and less time consumption for adaptation. However, there is a debate as to whether an indigenous microbial community is more efficient than one composed of microbial strains selected for specific physiological traits. In order to provide thoughtful opinions in such a debate, a cross-comparison of six strains isolated from two different regions: Chambishi Copper Mine (Zambia) and Dexing Copper Mine (China), was conducted. Physiological properties and leaching performancesof Acidithiobacillus ferrooxidans,
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HAJHUSSEIN, A. "Ultraviolet spectrophotometric determination of copper in copper ores by flow-injection analysis." Talanta 43, no. 11 (1996): 1909–14. http://dx.doi.org/10.1016/0039-9140(96)01968-6.

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Wu, Ai Xiang, Bao Hua Yang, Jin Zhi Liu, and Xiu Xiu Miao. "Effect of Bio-Leaching Process on the Pore Structure of Packed Particle Bed via 3D Imaging and Analysis." Advanced Materials Research 825 (October 2013): 344–47. http://dx.doi.org/10.4028/www.scientific.net/amr.825.344.

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Heap bio-leaching technology is extensively applied to recover metals from low-grade complex ores in the mining industry, particularly the copper sulfide ores. Understanding the effect of bio-leaching process on the pore structure of packed particle beds is important to enhance the percolation and leaching performances with respect to design and operation of heap leaching system. The porosity, pore size distribution and degree of pore connectivity are the three most important features correlated with fluid flow in heap leaching operation. In this study, a spiral X-ray CT scanner, combined with
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Tanaka, Yoshiyuki, Hajime Miki, Gde Suyantara, Yuji Aoki, and Tsuyoshi Hirajima. "Mineralogical Prediction on the Flotation Behavior of Copper and Molybdenum Minerals from Blended Cu–Mo Ores in Seawater." Minerals 11, no. 8 (2021): 869. http://dx.doi.org/10.3390/min11080869.

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The copper ore in Chilean copper porphyry deposits is often associated with molybdenum minerals. This copper–molybdenum (Cu–Mo) sulfide ore is generally mined from various locations in the mining site; thus, the mineral composition, oxidation degree, mineral particle size, and grade vary. Therefore, in the mining operation, it is common to blend the ores mined from various spots and then process them using flotation. In this study, the floatability of five types of Cu–Mo ores and the blending of these ores in seawater was investigated. The oxidation degree of these Cu–Mo ores was evaluated, an
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Shang, He, Biao Wu, Jian Kang Wen, and Xing Lan Cui. "Analysis of Microbial Community in Heap Bioleaching of Low-Grade Copper Sulfide Ores." Key Engineering Materials 777 (August 2018): 277–81. http://dx.doi.org/10.4028/www.scientific.net/kem.777.277.

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High-throughput sequencing technology also known as "next generation" sequencing technology, compared with the traditional sequencing method has the characteristics of fast speed, high flux, low cost. In recent years the technology in the detection of microbial diversity has been fully applied. In this study, the microbial community of ore heap in different area and different depth was studied by using this method. The results showed the bio - heap leaching of low - grade secondary copper sulfide ore in Zijinshan from China could effectively recover the copper in the ore. The number of microor
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Wang, jianguo, wen Zhang, Yifan Zhang, Faming Tian, Yunying Duan, and Wenyu Sun. "Analysis on the geochemical characteristics of Chachalongwa copper, lead and zinc polymetallic ores." IOP Conference Series: Earth and Environmental Science 199 (December 19, 2018): 042043. http://dx.doi.org/10.1088/1755-1315/199/4/042043.

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HUELGA-SUAREZ, G., M. MOLDOVAN, M. SUÁREZ FERNÁNDEZ, M. ÁNGEL DE BLAS CORTINA, F. VANHAECKE, and J. I. GARCÍA ALONSO. "LEAD ISOTOPIC ANALYSIS OF COPPER ORES FROM THE SIERRA EL ARAMO (ASTURIAS, SPAIN)*." Archaeometry 54, no. 4 (2011): 685–97. http://dx.doi.org/10.1111/j.1475-4754.2011.00635.x.

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Kamradt, Andreas, Juliane Schaefer, Axel Schippers, and Sabrina Hedrich. "Comparative Bioleaching and Mineralogical Characterization of Black Shale-Hosted Ores and Corresponding Flotation Concentrates." Solid State Phenomena 262 (August 2017): 139–42. http://dx.doi.org/10.4028/www.scientific.net/ssp.262.139.

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In this study, two black shale copper ores from different Mid-European Kupferschiefer-type deposits and their flotation concentrates were used for bioleaching tests. All samples were subjected to stirred tank bioleaching using an acidophilic, moderately thermophilic microbial consortium. The distribution of sulfides and gangue minerals in the ores, copper concentrates and residues of both, bioleaching and sterile chemical control tests were investigated using EDX-based particle analysis. The black shale ores and the extracted copper concentrates varied in their mineralogical composition with r
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Dissertations / Theses on the topic "Copper ores – Zambia – Analysis"

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Crane, Martin John, University of Western Sydney, of Science Technology and Environment College, and of Science Food and Horticulture School. "Geochemical studies of selected base metal minerals from the supergene zone." THESIS_CSTE_SFH_Crane_M.xml, 2001. http://handle.uws.edu.au:8081/1959.7/232.

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Acid leaching of different natural chrysocolla samples under ambient conditions demonstrated that the chemical and chrystallographic inhomogenity significantly affects the rate and that it is virtually impossible to use the mineral as a model for the kinetics of hydrometallurgical processing of copper ores.Dissolution experiments, stability diagrams,and X-ray powder diffraction studies are undertaken and studied in this research and results are given.It is found that a complete solid solution series exists in Nature with most tungstenian wulfenites and molybdenum stolzites containing a range o
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Hellsten, Mark. "GDP per capita and the privatization of copper mines in Zambia : a time series analysis of unit root with structural breaks." Thesis, Örebro universitet, Handelshögskolan vid Örebro Universitet, 2020. http://urn.kb.se/resolve?urn=urn:nbn:se:oru:diva-80704.

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Greentree, Matthew Richard. "Tectonostratigraphic analysis of the Proterozoic Kangdian iron oxide - copper province, South-West China." University of Western Australia. Tectonics Special Research Centre, 2007. http://theses.library.uwa.edu.au/adt-WU2009.0054.

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The Cenozoic Ailaoshan – Red River shear zone marks the present day western margin of the South China Block. Along this margin are well preserved late Paleoproterozoic to early Neoproterozoic sedimentary and volcanic successions. This work examines the ages and tectonic environments for the formation of the successions, as well as significance of the regional tectono-magmatic events on the formation of widespread iron oxide-copper deposits. The oldest succession is the Paleoproterozoic Dahongshan Group. A new SHRIMP UPb age of 1675 ± 8 Ma for a tuffaceous schist unit confirms its Paleoproteroz
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Van, der Merwe Ryno. "Leaching characteristics of copper refractory ore : effect of pre-oxidation stage." Thesis, 2010. http://encore.tut.ac.za/iii/cpro/DigitalItemViewPage.external?sp=1000303.

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M. Tech. Metallurgical Engineering.<br>A novel process of leaching copper refractory ore from Nchanga mine, Zambia, in two stages consisting of a pre-oxidation step and an acid dissolution stage was investigated by means of a leach test rig.
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Lusambo, Martin. "An integrated model of milling and flotation for the optimal recovery of sulphide ores at the Kansanshi mine." Diss., 2019. http://hdl.handle.net/10500/26692.

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Kansanshi mine sulphide ore circuit did not achieve target flotation recovery in 2016, hence it was deemed necessary to carry out a research aimed at optimizing this circuit. The objective of the research was to optimise the Kansanshi milling and flotation circuit processing a copper sulphide ore. In line with this, samples were obtained around the circuit and processed in the laboratory for moisture content, slurry concentration, particle size distribution, and flotation response. This information was then used to build a computer-based model of the Kansanshi milling and flotation circ
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Books on the topic "Copper ores – Zambia – Analysis"

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Eckardt, Christian B. Organisch-geochemische Untersuchungen am Kupferschiefer Nordwestdeutschlands: Metallporphyrine als Reife- und Faziesindikatoren. Lit Verlag, 1989.

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Distribution of gold in porphyry copper deposits. U.S. Dept. of the Interior, U.S. Geological Survey, 1988.

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Ltd, ICON Group, and ICON Group International Inc. ZAMBIA COPPER INVESTMENTS LTD.: International Competitive Benchmarks and Financial Gap Analysis (Financial Performance Series). 2nd ed. Icon Group International, 2000.

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Book chapters on the topic "Copper ores – Zambia – Analysis"

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Srivastava, Jyoti, and Pradeep Srivastava. "Biomining Microorganisms' Molecular Aspects and Applications in Biotechnology and Bioremediation." In Biostimulation Remediation Technologies for Groundwater Contaminants. IGI Global, 2018. http://dx.doi.org/10.4018/978-1-5225-4162-2.ch001.

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The effective dissolution of metals is widely known with the help of microorganisms called bioleaching or biomining used for the extraction of metals from their ores. Usually the microorganisms involved in biomining are chemolithoautotrophic and extremophilic in nature, since they are living in highly acidic environments (pH 1-3.0) containing heavy concentrations of metals. The commonly found genera of archea are Sulfolobus, Acidianus, Metallosphaera, and Sulfurisphaera. Throughput microbial genomics and proteomics analysis provides novel insights of metabolism mechanisms of bioleaching microbes. These microbes are having significant impact on the bioremediation of acid mine drainage (AMD) resulted from many industrial operations. Using these microbes, various metals including Ni, Cd, Cu, Fe, As, Pb, Hg, Cr, Mn, Zn, etc. are removed from the environment. Biomining microorganisms are having significant applications in the biotechnological processes including extraction of gold from ores, extraction of nickel from low-grade sulfide ores, extraction of copper from chalcopyrite, etc.
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Conference papers on the topic "Copper ores – Zambia – Analysis"

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Kubik, Rafal. "CREATION AND DEVELOPMENT OF QEMSCAN� ANALYSIS PROCEDURE BASED ON POLISH COPPER ORES INVESTIGATION." In 18th International Multidisciplinary Scientific GeoConference SGEM2018. Stef92 Technology, 2018. http://dx.doi.org/10.5593/sgem2018/1.1/s01.008.

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Nakajima, Yasuharu, Joji Yamamoto, Tomoko Takahashi, et al. "Development of Elemental Technologies for Seafloor Mineral Processing of Seafloor Massive Sulfides." In ASME 2019 38th International Conference on Ocean, Offshore and Arctic Engineering. American Society of Mechanical Engineers, 2019. http://dx.doi.org/10.1115/omae2019-96040.

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Abstract Seafloor Massive Sulfides have been expected to be future mineral resources. The grade of valuable metallic elements in ores of Seafloor Massive Sulfides is usually small percentage. If valuable minerals can be extracted from the ores on deep seafloor, the total mining cost can be reduced significantly. The authors proposed Seafloor Mineral Processing, where ores are to be ground into fine particles and separated into concentrates and tailings on seafloor. The Seafloor Mineral Processing system consists of processing units for unit operations such as grinding and separation. To invest
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Туресебеков, Арпай, Носир Шукуров, Хасан Шарипов, Роман Алабергенов, Абдували Зунунов, and Шухрат Шукуров. "Artificial waste as a new source of non-ferrous, noble, rare and toxic metals of Almalyk mining and metallurgical combine." In Mineralogical and technological appraisal of new types of mineral products. Karelian Research Center of RAS, 2019. http://dx.doi.org/10.17076/tm13_4.

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The results of the integrated study of metal waste from Almalyk Mining-Metallurgical Plant (AMMP) are reported. Non-ferrous, noble and rare-metal reserves in waste from the dressing and metallurgical conversion of copper-molybdenum and lead-zinc deposits were evaluated. Analysis of the chemical composition and distribution of non-ferrous, noble, rare and toxic metals and their mode of occurrence in artificial waste from AMMP has shown that they are highly complex ores which could be used to increase metal production at AMMP.
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