Search for dissertations about: "chalcopyrite leaching"
Showing result 1 - 5 of 10 swedish dissertations containing the words chalcopyrite leaching.
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1. Chalcopyrite (Bio)leaching in Sulphate Solutions : An Investigation into Hindered Dissolution with a Focus on Solution Redox Potential
Abstract : Chalcopyrite (CuFeS2) is the most abundant and the most economically important copper mineral. Increasing worldwide demand for copper accompanied by exhaustion of copper resources necessitate the development of new processes for treating lower-grade copper ores. READ MORE
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2. Chalcopyrite Dissolution in Sulphate-Based Leaching and Bioleaching Systems
Abstract : Chalcopyrite (CuFeS2) is the most abundant and the most economically important copper mineral. Increasing worldwide demand for copper accompanied by exhaustion of copper resources necessitate the development of new processes for treating lower-grade copper ores. READ MORE
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3. Flotation selectivity, process modelling and simulation for a complex sulphide ore
Abstract : This thesis covers research with different methods on the same fine-grained complex sulphide ore - Petiknäs - from the Skellefte Field in Northern Sweden. Mineralogical research results demonstrate that the degree of liberation of galena, rather than the chemical factors under the current flotation conditions, is the dominant factor affecting Pb grade and recovery, since galena has the same flotation as chalcopyrite if having the same degree of liberation. READ MORE
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4. Function and Adaptation of Acidophiles in Natural and Applied Communities
Abstract : Acidophiles are organisms that have evolved to grow optimally at high concentrations of protons. Members of this group are found in all three domains of life, although most of them belong to the Archaea and Bacteria. READ MORE
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5. Biotic and abiotic isotope fractionation of copper and iron : From the lab to the field scale
Abstract : The distribution of the stable isotopes of Cu and Fe in nature is susceptible to isotope fractionation processes during the biogeochemical cycle. Since Cu and Fe are redox sensitive metals, differences in their oxidation states can lead to variations in the stable isotope composition of the aquatic species or compounds that they form. READ MORE