Biological, Chemical and Transport Phenomena which Control the Rate of Copper Leaching in Heap and Dump Operations

Tomas Vargas; Carol S. Davis-Belmar

doi:10.4028/www.scientific.net/AMR.825.288

Paper Titles

Two-Step Bioleaching and Spent Medium Leaching of Gold from Electronic Scrap Material Using Chromobacterium violaceum
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Bioleaching of Pyrrhotite by Moderately and Extremely Thermophilic Bacteria
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Bioleaching of Spent Hydrotreating Catalyst by Thermophilic and Mesophilic Acidophiles: Effect of Decoking
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Bioleaching of Sulphide Minerals with Sulfobacillus acidophilus at 45°C
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Biological, Chemical and Transport Phenomena which Control the Rate of Copper Leaching in Heap and Dump Operations
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Biologically Assisted Copper Secondary Sulfide Ore Leaching in the Presence of Chloride
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Biomass Production and Inoculation of Industrial Bioleaching Processes
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Bioprocessing of Mining and Metallurgical Wastes Containing Non-Ferrous and Precious Metals
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BioSigma Bioleaching Seeds (BBS): A New Technology for Managing Bioleaching Microorganisms
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HomeAdvanced Materials ResearchAdvanced Materials Research Vol. 825Biological, Chemical and Transport Phenomena which...

Biological, Chemical and Transport Phenomena which Control the Rate of Copper Leaching in Heap and Dump Operations

Abstract:

Bioleaching of secondary and low grade copper ores in heaps and/or dumps is to day a well established technology. However, there is still a strong need to improve the copper leaching rates and recoveries currently reached at plant level in order to increase the economic outcome and range of application of this technology. This work presents a conceptual model which helps to elucidate when a bioleaching process is controlled either by biological, chemical or transport phenomena. This model, mathematically simplified but scientifically well grounded, it is expected will facilitate discussions among biologists, metallurgists and process engineers to develop collaborative approaches to improve this technology integrating different expertise.

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Periodical:

Advanced Materials Research (Volume 825)

Pages:

288-291

DOI:

https://doi.org/10.4028/www.scientific.net/AMR.825.288

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Online since:

October 2013

Authors:

Tomas Vargas, Carol S. Davis-Belmar

Keywords:

Bacterial Oxidation, Bioleaching, Biooxidation, Copper Sulphides, Dumps, Heaps

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References

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