heap bioleaching of chalcopyrite

  • Feasibility study on heap bioleaching of chalcopyrite

    Aug 31, 2013· This inhibitory effect can be eliminated by thermophilic bioleaching The industrial test of BioCOP technology based on thermophiles was successfully completed, which confirmed the feasibility of chalcopyrite bioleaching However, industrial leaching rate of chalcopyrite heap bioleaching.

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  • A review of the structure, and fundamental mechanisms and

    Sep 01, 2013· Read "A review of the structure, and fundamental mechanisms and kinetics of the leaching of chalcopyrite, Advances in Colloid and Interface Science" on DeepDyve, the largest online rental service for scholarly research with thousands of academic publications available at your fingertips.

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  • EP1713942B1

    In order to achieve elevated heap temperatures conducive to chalcopyrite heap leaching sequential populations of bioleaching microorganisms are required This is necessary because microorganisms which predominate at ambient temperature, at heap start up, are not able to grow and contribute to the bioleaching process at elevated temperatur.

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  • Heap Bioleaching Of Chalcopyrite Copper Ore

    Heap Bioleaching Of Chalcopyrite Copper Ore It is a worldwide phenomenon that, as copper mines are getting deeper, more sulfidic ore is encountered Furthermore, the average grade of reserves and unexploited deposits is dropping.

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  • Advances in high-temperature heap leaching of refractory

    During chalcopyrite heap bioleaching, higher aeration rates are required than are customary for secondary sulphide ores, due to the requirement for pyrite conversion During secondary sulphide heap bioleaching, it is necessary only to convert the sulphur species associated with copper Column.

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  • Bioleaching: metal solubilization by microorganisms

    Currently bioleaching is used on an industrial scale for the treatment of low-grade ores which generally contain metal concentrations below 05% (w/w) The simplest way of conducting microbial leaching is to pile the material in heaps, allow water to trickle through the heap.

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  • Insights into heap bioleaching of low grade chalcopyrite

    Heap bioleaching of low grade chalcopyrite (CuFeS2) was carried out in 1000 tons scale over a time period of 383 days Bacterial solution was prepared and re‐circulated in specially designed.

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  • Minerals

    Panda et al provide a review on chalcopyrite leaching with particular emphasis on heap bioleaching A brief introduction to the modelling of bioleach processes is given by Petersen [ 58 ] and Gebhardt et al [ 59 ] give an overview of the leach kinetics of chalcopyrite dissolution in heap conditions using a.

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  • Heap bioleaching of chalcopyrite: A review

    Heap bioleaching of chalcopyrite: A review , Application of chalcopyrite bioleaching in heap/dump leach processes can potentially result in lower cost and reduced environmental impact in copper.

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  • The detoxification potential of ferric ions for

    Abstract Fluoride toxicity to microorganisms was a predominant factor contributing to the failure of a commercial scale bioleach heap An integrated control strategy for fluoride complexation without jarosite generation by stepwise adding ferric ions was first proposed to enable the bioleaching of the chalcopyrite associated with fluoride-bearing gangue mineral by Acidithiobacillus ferrooxidans.

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  • Bioleaching of chalcopyrite

    Bioleaching of chalcopyrite , The most significant current application of microorganisms in this field is heap bioleaching as well as aerated stirred tank reactors Table 11 summarises the commercial applications of bioleaching of copper and lists ore type, technology, microorganisms, temperature, status, and effectiveness.

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  • A XANES and XRD study of chalcopyrite bioleaching with

    A XANES and XRD study of chalcopyrite bioleaching with pyrite Yi Yanga,b, Weihua Liua, Suresh K Bhargavac, Weimin Zengd, Miao Chena,c,⇑ a CSIRO Mineral Resources, Clayton, Vic 3169, Australia bSchool of Chemical and Physical Sciences, Flinders University, Bedford Park, SA 5042, Australia cCentre for Advanced Materials and Industrial Chemistry, School of Applied Sciences, RMIT.

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  • Biomining

    Biomining is the biotechnology that uses microorganisms to recover metals, in particular copper and gold, from ores and concentrat Having developed from a very simple operational (in terms of both engineering and biology) process, biomining has developed into a multifaceted technology, to the extent that many of the largest industrial stirred tanks and heaps throughout the world are.

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  • Review of the role of microbiology in the design and

    Heap bioleaching is widely used for the extraction of copper from secondary copper sulphide or The design and engineering aspects of the process have received considerable attention, but issues related to the microbiology of the process have been subjected to less rigorous scrutiny The major role of micro-organisms in bioleaching processes.

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  • (2007, J Petersen et al) Principles, mechanisms and

    (2007, J Petersen et al) Principles, mechanisms and dynamics of chalcocite heap bioleaching Niko Dian Pahlevi Download with Google Download with Facebook or download with email (2007, J Petersen et al) Principles, mechanisms and dynamics of chalcocite heap bioleaching Download.

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  • The Impact of Drip Irrigation on Heap Hydrology and

    In heap bioleaching iron and/or sulfur oxidising microorganisms are used to facilitate the oxidation of base metal sulfides in ore, thereby liberating the metal ions (eg Cu2+) into the leach solution The heap performance is consequently strongly influenced by the contacting of the leach solution and the ore particl In this study two setups were used to examine irrigation from a single.

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  • High Temperature Heap Bioleaching Process

    Jun 07, 2007· A high temperature heap bioleaching process, the process comprising the steps of: a constructing a heap comprising chalcopyrite bearing ore, said heap including exposed sulfide mineral particles at least 25 weight % of which comprise chalcopyrite, wherein the concentration of exposed sulfide mineral particles in said heap is such that said.

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  • A review of the structure, and fundamental mechanisms and

    Sep 01, 2013· Read "A review of the structure, and fundamental mechanisms and kinetics of the leaching of chalcopyrite, Advances in Colloid and Interface Science" on DeepDyve, the largest online rental service for scholarly research with thousands of academic publications available at your fingertips.

    【More】
  • Bioleaching of chalcopyrite

    Bioleaching of chalcopyrite , The most significant current application of microorganisms in this field is heap bioleaching as well as aerated stirred tank reactors Table 11 summarises the commercial applications of bioleaching of copper and lists ore type, technology, microorganisms, temperature, status, and effectiveness.

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  • Chalcopyrite Heap Leaching

    bioleaching of chalcopyrite works in the laboratory without giving further consideration on how their process can be implemented in practice whereas the large copper mining companies tend to keep their developments on chalcopyrite heap leaching proprietary” •.

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  • The detoxification potential of ferric ions for

    Abstract Fluoride toxicity to microorganisms was a predominant factor contributing to the failure of a commercial scale bioleach heap An integrated control strategy for fluoride complexation without jarosite generation by stepwise adding ferric ions was first proposed to enable the bioleaching of the chalcopyrite associated with fluoride-bearing gangue mineral by Acidithiobacillus ferrooxidans.

    【More】
  • Heap bioleaching of chalcopyrite: A review, Minerals

    Apr 01, 2008· Read "Heap bioleaching of chalcopyrite: A review, Minerals Engineering" on DeepDyve, the largest online rental service for scholarly research with thousands of academic publications available at your fingertips.

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