Global ETD Search
Search theses and dissertations gathered from participating repositories worldwide. Every result links back to the library that holds it. No account is needed.
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Showing 1 to 12 of 12 for “"Copper Production"”.
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A Political Ecology of Copper Production and Environmental Degradation In Zambia
<p>Zambia has been producing copper for more than a century. Over the past three decades, the country has attracted large scale investments within the mining sector making it one the formidable destination for investment in Africa. However, the relationship between copper production and …
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Lagerstätteneigenschaften und Indikatoren als Basis zur globalen Bewertung einer nachhaltigen Rohstoffverfügbarkeit von Kupfererz
… will be identified and analysed. The example of copper ore shows that geological characteristics directly effect subsequent technical processes such as mining, processing and smelting. The analysis of geological and mineralogical ore deposit characteristics enables to identify indicators in order …
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6,000 years of copper smelting : Center for the Study of Copper Smelting in Ancient Societies
… Beno Rothenberg began investigating the production of copper in the Sinai desert and Aravah region of southern Israel. He discovered over 650 previously unknown ancient copper mining and smelting sites. The Timna Valley is one of the most significant sites discovered and is believed to be …
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Biooxidation kinetics of Leptospirillum Ferriphilum attached to a defined solid substrate
… leaching account for about 20% of the world’s copper production and are becoming popular methods of copper production from leaching low grade ores. It is therefore important that the kinetics of irrigation type bioleaching systems are well understood. A strategy to determine the microbial …
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Der Einfluss von Lagerstätteneigenschaften auf eine nachhaltige Rohstoffnutzung am Beispiel Kupfer
… resource availability and it requires efficient production and use of Earth materials. The demand of an efficient use of metallic raw materials leads to the question about the optimal exploitation of deposits. The availability of raw materials for the primary metal production depends on …
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The historical archaeology of Marothodi : towards an understanding of space, identity and the organisation of production at an early 19th century Tlokwa capital in the Pilansberg region of South Africa
… above is relevant to one particular aspect of production. The organisation of both iron and copper production at Marothodi is explored and analysed against the wider contextual backdrop of the capital. The intensification of metallurgical output, and the adaptation of Tswana cultural codes to …
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Assessment of copper recovery from leaching of microwave pre-treated tailing from the Otjihase mine
Copper forms one of the world 's most important metals, with vital properties such as high malleability, toughness, and is an excellent conductor of heat and electricity. These properties make copper su itable for a vast range of industrial applications, and predominantly electrical applications. …
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The archaeology and technology of metal production in the Late Iron Age of the Southern Waterberg, Limpopo Province, South Africa
… Additionally, the appearance of gold and tin production, against a background of on-going iron and copper metallurgy, has been interpreted by some as intimating innovation in metal technology. While some research energy has been invested into these novelties, there has only been incidental …
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Dynamic modelling of catalytic SO2 converter in a sulfuric acid plant of an industrial smelter
In industrial nickel and copper production, sulfur dioxide (SO2) is generated from the combustion of sulfide ores. With increasingly tightened regulations on SO2 emissions, a sulfuric acid plant has become a crucial part of industrial smelters. It converts environmentally harmful SO2, which is …
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The mineralogical deportment of radionuclides in South Australian Ca-Au-(U) ores
Iron-oxide copper gold (IOCG)-uranium deposits represent South Australia’s primary resource base for copper production. The presence of daughter radionuclides (RN) from the 238U decay series within the ores necessitates a detailed understanding of their mineralogical deportment as a pre-requisite …
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Hydrophobic-Hydrophilic Separation Process for the Recovery of Ultrafine Particles
The demands for copper and rare earth elements (REEs) in the U.S. will keep rising due to their applications in green energy technologies. Meanwhile, copper production in the U.S. has been declining over the past five years due to the depletion of high-grade ore deposits. The situation for REEs is …
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Generalised strategy for predicting environmental characteristics of solid mineral wastes : a focus on copper
The impacts associated with primary production of metallic and fossil minerals are significant, and these industry sectors are facing increasing pressure to improve environmental performance and contribute to development that is consistent with sustain ability principles. The management of large …