Results 211 to 220 of about 18,311 (249)
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Acid and ferric sulfate bioleaching of uranium ores: A review #
, 2020This review examines the acid and ferric sulfate bioleaching of uranium from low grade ores. The review traces back the progression of the technology from the time the role of microorganisms was recognized in the 1950’s and 1960’s.
A. Kaksonen, A. Lakaniemi, O. Tuovinen
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Bioleaching approach for extraction of metal values from secondary solid wastes: A critical review
Hydrometallurgy, 2019Bioleaching (microbial leaching), being an economical and environmental friendly process, is investigated extensively for metal extraction from secondary solid wastes, viz., electronic wastes, spent catalyst, sludge, slag and fly ash.
H. Srichandan +3 more
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Hydrometallurgy, 2003
Discrete particle size fractions of a zinc sulphide ore were bioleached in stirred tank reactors operated in batch mode. Kinetic analyses of these tests revealed that the leaching process was divided into two stages: (1) a period of colonization of the ore by bacteria, and (2) a steady rate period where the reaction could be described by classical ...
H.M Lizama +3 more
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Discrete particle size fractions of a zinc sulphide ore were bioleached in stirred tank reactors operated in batch mode. Kinetic analyses of these tests revealed that the leaching process was divided into two stages: (1) a period of colonization of the ore by bacteria, and (2) a steady rate period where the reaction could be described by classical ...
H.M Lizama +3 more
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Electrochemical Applications in Metal Bioleaching
2017Biohydrometallurgy comprises the recovery of metals by biologically catalyzed metal dissolution from solids in an aqueous solution. The application of this kind of bioprocessing is described as "biomining," referring to either bioleaching or biooxidation of sulfide metal ores.
Christoph Kurt, Tanne, Axel, Schippers
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The dissolution and passivation mechanism of chalcopyrite in bioleaching: An overview
Minerals Engineering, 2019Chalcopyrite (CuFeS2) is the most abundant copper-containing resource in the earth and is also widely distributed in solid wastes and secondary resources.
Hongbo Zhao +9 more
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, 2020
Red mud (RM) is a typical mass quantity of solid waste generated from industrial alumina production and usually consists of valuable metals such as Al and rare earths (REs).
Duo-rui Zhang +6 more
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Red mud (RM) is a typical mass quantity of solid waste generated from industrial alumina production and usually consists of valuable metals such as Al and rare earths (REs).
Duo-rui Zhang +6 more
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2009
Enargite (Cu₃AsS₄) is a refractory mineral that has not been investigated extensively with respect to copper leaching. The two main challenges to its leaching is its very refractory nature, which some sources consider to be more refractory than chalcopyrite; and the mineral contains arsenic, and possibly small amounts of antimony, which will pose a ...
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Enargite (Cu₃AsS₄) is a refractory mineral that has not been investigated extensively with respect to copper leaching. The two main challenges to its leaching is its very refractory nature, which some sources consider to be more refractory than chalcopyrite; and the mineral contains arsenic, and possibly small amounts of antimony, which will pose a ...
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Bioleaching and mineral biotechnology
Current Opinion in Biotechnology, 1993Abstract Advances in the bioleaching of sulfide materials, sulfur removal from fossil fuels, and mineral biotechnology are reviewed. Recent descriptions of acidophilic microbial communities and newly recognized bacterial species have revealed abundant physiological diversity in acid mine water environments that may have potential application in ...
Olli H. Tuovinen, Ilona J. Fry
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Enhanced bioleaching of valuable metals from spent lithium-ion batteries using ultrasonic treatment
Korean Journal of Chemical Engineering, 2023Mohsen Nazerian +2 more
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