Research on Bio-Leaching of Nickel-Bearing Tailings in Jilin, China

Xin Wang; Hong Ying Yang; Lin Lin Tong; Zhe Nan Jin; Su Xing Zhao

doi:10.4028/www.scientific.net/SSP.262.177

Paper Titles

Investigation of Intermediates Evolutions during Bornite Bioleaching by Mesophilic Mixed Bacteria
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A Comparison of Bioleaching Behavior of Two Pure Chalcopyrite Minerals through Investigating Chalcopyrite Crystallographic Properties
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Effect of Marmatite on Bioleaching Behaviors of Chalcopyrite
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Influence of Citrate on Metal Dissolution and Respiration Rate of Microbial Leaching Cultures
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Research on Bio-Leaching of Nickel-Bearing Tailings in Jilin, China
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Recovery of Copper from Pyritic Copper Ores Using a Biosurfactant-Producing Mixotrophic Bacterium as Bioflotation Reagent
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Insights into Heap Bioleaching at the Agglomerate-Scale
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Comparative Variants of Microbial Pretreatment and Subsequent Chemical Leaching of a Gold-Bearing Sulphide Concentrate
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Biosynthesis of Copper Nanoparticles Using Aqueous Extracts of Aloe vera and Geranium and Bioleaching Solutions
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Research on Bio-Leaching of Nickel-Bearing Tailings in Jilin, China

Abstract:

Gradually bio-metallurgy technology is becoming an irreplaceable new technology. The nickel-bearing tailings in Jilin, China contains Ni 0.13 %, Cu 0.03%, Co 0.01%, S 15.20%, Fe 6.30%. A comparative study of the HQ0211 bacteria, indigenous bacteria (after the domestication named ZXJE511 bacteria) and acid pool leaching revealed that the local species ore leaching was preferably the best way. At pH 2.0, room temperature (about 23°C), pulp density 20%,the Ni, Co and Cu leaching rates were 70.08%, 40% and 57.67 % , respectively ,after 38 days of bioleaching, proving the superiority of the bacterial leaching of Ni, Co, Cu from tailings. Biological leaching tailings solved the problem of the conventional methods which could not be addressed by acid leaching. This technology is environmentally friendly and can make maximum use of the resources, thereby avoiding the waste of the resources.

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Periodical:

Solid State Phenomena (Volume 262)

Pages:

177-180

DOI:

https://doi.org/10.4028/www.scientific.net/SSP.262.177

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Online since:

August 2017

Authors:

Xin Wang, Hong Ying Yang*, Lin Lin Tong, Zhe Nan Jin, Su Xing Zhao

Keywords:

Bacterial Leaching, Nickel, Tailings, Valuable Metals

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