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BioSigma Bioleaching Seeds (BBS): A New Technology for Managing Bioleaching Microorganisms
Advanced Materials Research, 2013In Bioleaching, although it is already prove that chalcopyrite can be dissolved by microorganisms, a major task is to do it efficiently in economical terms at industrial scale. BioSigma Bioleaching Seeds (BBS) represents a biotechnological breakthrough for the production of bioleaching solutions on demand with high concentrations of biomining ...
Patricio Martínez, Pilar Parada
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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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Biotechnology Letters, 1992
Microbiological acid solutions produced byThiobacillus ferrooxidans andThiobacillus thiooxidans on pyritiferous concentrate were used to solubilize phosphate rock with a high grade in P2O5. Five different mixtures of pyritiferous concentrate and phosphate rock, in different proportions, were used in adequate liquid culture media.
A. C. A. Costa +2 more
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Microbiological acid solutions produced byThiobacillus ferrooxidans andThiobacillus thiooxidans on pyritiferous concentrate were used to solubilize phosphate rock with a high grade in P2O5. Five different mixtures of pyritiferous concentrate and phosphate rock, in different proportions, were used in adequate liquid culture media.
A. C. A. Costa +2 more
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1997
Natural bioleaching has been taking place for almost as long as the history of the world, but it is only in the last few decades that we have realized that bioleaching is responsible for acid production in some mining wastes, and that this bacterial activity can be used to liberate some metals. The application of the bioleaching reaction for copper has
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Natural bioleaching has been taking place for almost as long as the history of the world, but it is only in the last few decades that we have realized that bioleaching is responsible for acid production in some mining wastes, and that this bacterial activity can be used to liberate some metals. The application of the bioleaching reaction for copper has
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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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Bioleaching of Lateritic Nickel Ores
Despite nickel-bearing sulfide deposits having a large share of the world's nickel extraction, lateritic ore deposits contain more than 70% of the world's nickel reserves. Considering the limitations of producing nickel from sulfide reserves, the use of oxide reserves (laterites) for the production of nickel will be of great importance in the future ...Abdollahi, Hadi +2 more
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1997
Acidophilic microorganisms that oxidize iron and sulfur can be exposed to high temperatures in geothermal environments and in some heaps of ores and mine wastes. A variety of types with different optimum temperatures for growth are found across temperature gradients in the natural environments and may succeed one another as exothermic oxidation ...
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Acidophilic microorganisms that oxidize iron and sulfur can be exposed to high temperatures in geothermal environments and in some heaps of ores and mine wastes. A variety of types with different optimum temperatures for growth are found across temperature gradients in the natural environments and may succeed one another as exothermic oxidation ...
openaire +1 more source