copper leaching biological

  • David Dreisinger - Google Scholar Citations

    Copper leaching from primary sulfides: Options for biological and chemical extraction of copper. D Dreisinger. Hydrometallurgy 83 (1-4), 10-20, 2006. 194: 2006: Adsorption of antimony and arsenic from a copper electrorefining solution onto activated carbon. P Navarro, FJ Alguacil.

  • Copper leaching from primary sulfides: Options for ...

    Request PDF on ResearchGate | Copper leaching from primary sulfides: Options for biological and chemical extraction of copper | The primary sulfide minerals of copper have been difficult to leach ...

  • Bioleaching review part B: | SpringerLink

    Oct 18, 2003 · This review describes the historical development and current state of metals leaching and sulfide mineral biooxidation by the minerals industries. During the past 20 years commercial processes employing microorganisms for mineral recovery have progressed from rather uncontrolled copper dump leaching to mineral oxidation and leaching in designed bioheaps for oxidation of refractory gold ores .

  • Continuous biological leaching of copper from a chalcocite ...

    The bacteria-rich leach residue from the process would be an excellent source of inoculum for biological heap leaching. Biological leaching of a chalcocite ore and its concentrate was studied in both batch and continuous tests in a 3 g/L chloride environment.

  • Biological Leaching and Selection of Copper Production ...

    The following is a brief introduction of biological leaching of a copper production line. Common microbe mineral processing technologies are heap leaching and leaching. Heap leaching means to heap mined ore and then use microbe leaching solution. Due to its production cost is low and less pollution, it has been widely used.

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  • Biological Leaching Tests Dumps - Construction & Operation

    The ground material was 3.1% +325 mesh, and 33.5% -400 mesh, and assayed at 0.38% copper, 2.61% iron and 3.5% sulfur. Shake-flask leaches at pH 2.8 gave rapid copper leaching and extractions of 81% were obtained in the inoculated shake-flasks, and 38% in the sterile control flasks.

  • (PDF) Chemical and biological leaching of enargite ...

    In these experiments, the 720 Biotechnology Letters · Vol 19 · No 8 · 1997 BL 719-722,535 Esc 17/7/97 3:01 am Page 721 Chemical and biological leaching of enargite 11111 dissolution rate for both copper and arsenic was higher 2 than in chemical experiments without bacteria (Figure 3 3).

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  • Biological versus chemical leaching of electronic waste ...

    BIOLOGICAL VERSUS CHEMICAL LEACHING OF ELECTRONIC WASTE FOR COPPER AND GOLD RECOVERY Submitted in fullfillment of the requirements of the doctoral schools of Université Paris-Est Marne-la-Vallée (France), Università degli Studi di Cassino e del Lazio Meridionale (Italy) and UNESCO-IHE Institute for Water Education (the Netherlands).

  • Biological Leaching and Selection of Copper Production ...

    The following is a brief introduction of biological leaching of copper production line. Common microbe mineral processing technology are heap leaching and leaching. Heap leaching means to heap mined ore, and then use microbe leaching solution. Due to its production .

    [PDF]
  • Copper - Wikipedia

    The biological role for copper commenced with the appearance of oxygen in earth's atmosphere. Several copper proteins, such as the "blue copper proteins", do not interact directly with substrates; hence they are not enzymes. These proteins relay electrons by the process called electron transfer.