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bacterial consortium for copper extraction from sulphide ore

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  • Bacterial consortium for copper extraction from

    The mining industry is looking forward for bacterial consortia for economic extraction of copper from low-grade ores. The main objective was to determine an optimal bacterial consortium from several bacterial strains to obtain copper from the leach of chalcopyrite. The major native bacterial species involved in the bioleaching of sulphide ore

  • Bacterial consortium for copper extraction from sulphide

    2013-10-11 · with sulphide ore of a mining company. The species used have a viability of over 95% for the development of all tests (data not shown); which ensures that the inoculated bacte-ria were viable for the development of tests in flasks. Figu-re 1 shows that the bacterial consortium that achieve a greater extraction of copper since day 10 until the

  • Bacterial consortium for copper extraction from

    2013-10-30 · Regarding this, the bacterial consortium that achieved the greater extraction of copper from sulphulretted ore (Figure 2), was the one that consisted of consortia At. ferrooxidans with At. thiooxidans, making a 70% extraction of copper in the final test. The consortium presented a statistically significant difference from the rest of the tests.

  • Bacterial consortium for copper extraction from

    Bacterial consortium for copper extraction from sulphide ore consisting mainly of chalcopyrite . E. Romo I; The major native bacterial species involved in the bioleaching of sulphide ore it was found that the consortium integrated by At. ferrooxidans and At. thiooxidans removed 70% of copper in 35 days from the selected ore, showing

  • Bacterial consortium for copper extraction from

    The mining industry is looking forward for bacterial consortia for economic extraction of copper from low-grade ores. The main objective was to determine an optimal bacterial consortium from

  • Bacterial consortium for copper extraction from

    Bacterial consortium for copper extraction from sulphide ore consisting mainly of chalcopyrite.pdf Available via license: CC BY-NC 4.0 Content may be subject to copyright.

  • Bacterial consortium for copper extraction from

    Bacterial consortium for copper extraction from sulphide ore consisting mainly of chalcopyrite

  • Bacterial consortium for copper extraction from

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  • extraction of copper from its ore of sulphde

    Bacterial consortium for copper extraction from sulphide ore 20 Aug 2013 The mining industry is looking forward for bacterial consortia for economic extraction of copper from low-grade ores. In the extraction of copper from its sulphide ore when ore is subjected to roasting some of it is oxidised to Cu2O which reacts with the

  • Copper Mining and Extraction Sulfide Ores

    Copper can be extracted from its ore by: Underground: sinking a vertical shaft into the Earth to an appropriate depth and driving horizontal tunnels into the ore. Open pit: 90% of ore is mined by this method. Ores near the surface can be quarried after removal of

  • extraction of copper from its ore of sulphde

    Bacterial consortium for copper extraction from sulphide ore 20 Aug 2013 The mining industry is looking forward for bacterial consortia for economic extraction of copper from low-grade ores. In the extraction of copper from its sulphide ore when ore is subjected to roasting some of it is oxidised to Cu2O which reacts with the

  • Steps Of Extraction Of Copper From Chalcopyrite

    Copper Is Extracted From The Ore Chalcopyrite. Pdf bacterial consortium for copper extraction from.Bacterial consortium for copper extraction from sulphide ore consisting mainly of chalcopyrite.Get price an introduction to the chemistry of metal extraction.Details for the extraction of aluminum copper iron and titanium are.

  • Sustainable copper extraction from mixed chalcopyrite

    2019-10-1 · In fact, an alternative copper extraction route from mixed sulphide ores, chalcopyrite and chalcocite using mesophilic biomass consortium at 33.3 °C and ferric leaching process were attempted. Bioleaching experiments were settled with a fraction size of −75+53 µm. Bacteria were used as the catalyst. A copper yield of 65.50% was obtained.

  • Copper Mining and Extraction Sulfide Ores

    Copper can be extracted from its ore by: Underground: sinking a vertical shaft into the Earth to an appropriate depth and driving horizontal tunnels into the ore. Open pit: 90% of ore is mined by this method. Ores near the surface can be quarried after removal of

  • Bioleaching of Copper Sulphide Ore by a Microbial

    Peru is mining country with a great diversity of mineral resource. The high grade ores are declining, and there is a need to implement new techniques for recycling metals (Cu, Au, Zn, Pb, etc) from low-grade ores. In order to answer this question, the bioleaching of copper from sulphide ore (FeS2 45.30%, CuFeS2 1.90%, ZnS 8.90%, FeAsS 13.12%, PbS 3.69%) was evaluated with different

  • A BACTERIAL HEAP LEACHING APPROACH FOR THE

    2009-8-26 · A BACTERIAL HEAP LEACHING APPROACH FOR THE TREATMENT copper extraction of 70% was achieved in 120 days, using 1-metre columns, when treating an ore blend containing 1.36% chalcopyrite, 0.23% chalcocite, 0.07% covellite, for a copper oxide/secondary sulphide ore. Forced aeration is achieved by installing a

  • Potential for bioleaching copper sulphide rougher

    2021-5-21 · copper extraction of 93 per cent, with up to 8 g.L-1 copper after six bioreactor, copper sulphide ore, recovery, kinetics. * Bioprocess Engineering Research Unit, pH, and redox potential, while bacterial activity was monitored by CO2 and O2 utilization rates. The redox potential was measured with a gel-filled Pt-

  • Advances in high-temperature heap leaching of refractory

    2012-12-13 · Advances in high-temperature heap leaching of refractory copper sulphide ores conditions for bacterial activity in the heaps. Specially 50°C are required to achieve economical rates of extraction. If the ore contains sufficient pyrite, bacterial oxidation of the pyrite generates heat exothermically, and by manipulation of

  • BACTERIAL LEACHING OF COPPER FROM LOW GRADE

    Keywords: Bacterial 1eaching, chalcopyrite ore, copper. INTRODUCTION IN certain parts of the world large quantities of low grade chalcopyrite ores containing 0'2 to .0·8 per cent copper occur. The customary chemical and other methods of extraction of copper from such ores are not econo­

  • INVESTIGATION OF THE OPTIMAL TECHNOLOGY FOR

    6, 7 . The average content of copper in Field II is approx. 0.1% with the content of copper sulphide minerals nearly four times higher than the content of oxide minerals 7 . The acid leaching of copper from old flotation tailings was investigated by Antonijević et al. 4 and Stevanović et al. 5 .

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