Cited by 77Metal Extraction and BioleachingMine drainage and remediation techniquesExtraction and Separation Processes

A new direction for biomining: Extraction of metals by reductive dissolution of oxidized ores

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Johnson, D., Grail, Barry, Hallberg, Kevin·2013·Minerals

Abstract

Biomining, the biotechnology that uses microorganisms to extract metals from ores and concentrates, is currently used exclusively for processing reduced ores and mine wastes. Metals of economic value also occur extensively in oxidized ores, such as nickel laterites. While these are not amenable to oxidative dissolution, the ferric iron minerals they contain can, in theory, be disrupted by iron reduction, causing associated metals to be released. We have harnessed the ability of the facultatively anaerobic, acidophilic bacterium Acidithiobacillus ferroooxidans to couple the oxidation of elemental sulphur to the reduction of ferric iron in the goethite fraction of a limonitic nickel ore at 30 °C. Nickel and other metals (Co, Cr and Mn) were effectively solubilised and maintained in solution due to the low pH (1.8) of the leach liquor. The results highlight the potential for the bioprocessing of oxidized, iron-rich ores using an approach that is energy-saving and environmentally-benign compared with metallurgical processes currently applied to the extraction of Ni from lateritic ores.

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Crossref · 10.3390/min3010049

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  • Heap leaching has been used at some mining facilities to enhance metal extraction from low-grade sulfidic ores of copper, gold, uranium and zinc.

    “Heap leaching has been used at some mining facilities to enhance metal extraction from low-grade sulfidic ores of copper, gold, uranium and zinc [59][60][61].”

    From Strategizing carbon-neutral mines: A case for pilot projects (2014) · cites this paper as [61]

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Research works printed but not linked: 1

  1. Rawlings, D.E.; Johnson, D.B. Biomining; Springer-Verlag: Heidelberg, Germany, 2007.

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Authors
Johnson, D., Grail, B., & Hallberg, K.
Affiliations
Bangor University (GB)
Corresponding author
Johnson, D.
Venue
Minerals
Publisher
MDPI AG
Published
2013-01-30
Volume
3
Issue
1
Pages
49-58
ISSN
2075-163X (ISSN-L)
OpenAlex
W2030977017
Cited by
77
References
15
Citations by year
2026: 7 · 2025: 6 · 2024: 7 · 2023: 6 · 2022: 8 · 2021: 2 · 2020: 5 · 2019: 9 · 2018: 5 · 2017: 5 · 2016: 7 · 2015: 4 · 2014: 5 · 2013: 1
FWCI
3.13
Type
journal article
Language
en
Open access
Locations
  • Minerals (publishedVersion, cc-by)
  • DOAJ (DOAJ: Directory of Open Access Journals) (submittedVersion, cc-by-sa)
Funders
Royal Society
Topics
  • Physical Sciences › Engineering › Biomedical Engineering › Metal Extraction and Bioleaching
  • Physical Sciences › Environmental Science › Environmental Chemistry › Mine drainage and remediation techniques
  • Physical Sciences › Engineering › Mechanical Engineering › Extraction and Separation Processes
Keywords
biomining, reductive dissolution, oxidized ore, nickel laterite, Acidithiobacillus ferrooxidans, iron reduction, goethite, nickel extraction, cobalt, chromium, manganese, bioleaching

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