Effect of Temperature Ramping on Stirred Tank Bioleaching of a Copper Concentrate

Sabrina Hedrich; Catherine Joulian; Torsten Graupner; Axel Schippers; Anne Gwénaëlle Guézennec

doi:10.4028/www.scientific.net/SSP.262.3

Paper Titles

Preface, Committees, Lecture Programme, Poster Presentations

Effect of Temperature Ramping on Stirred Tank Bioleaching of a Copper Concentrate
p.3

Column Bioleaching of a Saline, Calcareous Copper Sulfide Ore
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Production Development of Olimpiadinskoe Gold Processing Plant through BIONORD^® Technology Processing
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Bioelectrochemical Leaching of Copper Sulfide Minerals
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Bioleaching of Supergene Porphyry Copper Ores from Sungai Mak Gorontalo of Indonesia by an Iron- and Sulfur-Oxidizing Mixotrophic Bacterium
p.20

Comparison of Reductive and Oxidative Bioleaching of Jarosite for Valuable Metals Recovery
p.24

The MONDO Minerals Nickel Sulfide Bioleach Project: From Test Work to Early Plant Operation
p.28

Recent Advances in Biomining and Microbial Characterisation
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Effect of Temperature Ramping on Stirred Tank Bioleaching of a Copper Concentrate

Abstract:

Kupferschiefer-type ore represents an important source for base metals and several studies concerning the bioleaching of black shale ores and Cu concentrates have been carried out with focus on various microbial communities and processing parameters. However, the incomplete dissolution of chalcopyrite remains a key issue for copper ore bioleaching improvement and requires further investigations in order to ensure an optimal control of the process for upscaling. Our study clearly showed that bioleaching tests are characterized by two separate phases with a distinct optimal temperature. A distinct effect of the temperature on the copper recovery and the advantage of temperature ramp in order to enhance copper bioleaching and chalcopyrite dissolution were demonstrated.

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Periodical:

Solid State Phenomena (Volume 262)

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3-6

DOI:

https://doi.org/10.4028/www.scientific.net/SSP.262.3

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Online since:

August 2017

Authors:

Sabrina Hedrich*, Catherine Joulian, Torsten Graupner, Axel Schippers, Anne Gwénaëlle Guézennec

Keywords:

Acidophiles, Bioleaching, Copper, Temperature

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References

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