Effect of mineralogy on Co and Ni extraction from Brazilian limonitic laterites via bioleaching and chemical leaching

Stanković, S.; Martin, Mirko; Goldmann, Simon; Gäbler, Hans-Eike; Ufer, Kristian; Haubrich, Frank; Moutinho, Vivian Fernandes; Giese, Ellen Cristine; Neumann, Reiner; Stropper, José Luciano; Stummeyer, Jens; Kaufhold, Stephan; Dohrmann, Reiner; Oxley, Anne; Marbler, Herwig; Schippers, Axel

doi:10.1016/j.mineng.2022.107604

Cited by 20 publications

(13 citation statements)

References 32 publications

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“…A laterite ore sample was obtained from a stockpile of the Anglo-American-owned Barro Alto mine in the state of Goiás, Brazil. The physical properties, geochemistry, and mineralogy of the sample BaSt are comprehensively described elsewhere ( Stanković et al, 2022 ). Briefly, the sample was ocher-colored, fine-grained clayey-silty material, completely decomposed and disaggregated.…”

Section: Methodsmentioning

confidence: 99%

“…Most studies focused on acidophiles that couple the oxidation of added elemental sulfur to sulfuric acid with the reduction of ferric iron in laterite mineral phases leading to a dissolution of particular mineral phases and solubilization of nickel and cobalt. The biogenic ferrous iron acts as a chemically reducing agent here ( Stanković et al, 2022 ). First reports described a Ferredoxin process concept in which Acidithiobacillus (At.)…”

Section: Introductionmentioning

confidence: 99%

“…ferrooxidans reduces ferric iron under anaerobic conditions from goethite as a main mineral phase, and the term “reductive bioleaching” was introduced ( du Plessis et al, 2011 ; Hallberg et al, 2011 ; Johnson and du Plessis, 2015 ). A later study showed that other Ni- and Co-bearing mineral phases in laterites such as Mn-rich mineral phases and magnesium silicates are dissolved, rather than goethite ( Stanković et al, 2022 ). This and other previous studies ( Marrero et al, 2015 , 2017 ) showed that Ni and Co recovery from limonitic laterites via bioleaching under aerobic conditions with the aerobic sulfur-oxidizers At.…”

Section: Introductionmentioning

confidence: 99%

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Do ferrous iron-oxidizing acidophiles (Leptospirillum spp.) disturb aerobic bioleaching of laterite ores by sulfur-oxidizing acidophiles (Acidithiobacillus spp.)?

Hetz,

Schippers

2024

Front. Microbiol.

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The extraction of nickel, cobalt, and other metals from laterite ores via bioleaching with sulfur-oxidizing and ferric iron-reducing, autotrophic, acidophilic bacteria (e.g. Acidithiobacillus species) has been demonstrated under anaerobic as well as aerobic conditions in experiments in different laboratories. This study demonstrated the bioleaching of laterites from Brazil with the addition of elemental sulfur in 2-L stirred-tank bioreactors with pure and mixed cultures of Acidithiobacillus and Sulfobacillus species under aerobic conditions. In particular, a potential disturbance of mineral dissolution under aerobic conditions by ferrous iron-oxidizing acidophiles likely introduced as contaminants in an applied bioleaching process was investigated with Leptospirillum ferrooxidans at 30°C and Leptospirillum ferriphilum at 40°C, at maintained pH 1.5 or without maintained pH leading to an increase in acidity (with pH values <1.0) due to the biological production of sulfuric acid. Despite the proportion of ferrous iron to the total amount of extracted iron in the solution being drastically reduced in the presence of Leptospirillum species, there was a negligible effect on the extraction efficiency of nickel and cobalt, which is positive news for laterite bioleaching under aerobic conditions.

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Section: Methodsmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

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Do ferrous iron-oxidizing acidophiles (Leptospirillum spp.) disturb aerobic bioleaching of laterite ores by sulfur-oxidizing acidophiles (Acidithiobacillus spp.)?

Hetz,

Schippers

2024

Front. Microbiol.

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“…The reductive bioleaching technology has the potential to increase metal recovery in existing mines and transform unexploited ores, limonite stockpiles, and even tailings from laterite ore processing into valuable resources. The major hurdles facing reductive bioleaching are on the one hand the low reactivity of iron oxides such as goethite being an important Ni bearing and the main mineral phase in limonitic laterites (Stanković et al 2022 ), and on the other hand, the high processing costs for tank leaching operations. Thus, reductive bioleaching in ponds or heap bioleaching should be developed.…”

Section: Acid and Reductive Bioleaching Of Laterite Oresmentioning

confidence: 99%

“…As a modification, aerobic reductive dissolution of laterites with Acidithiobacillus species has been demonstrated at low pH < 1, including the use of At. thiooxidans as the only organism (Marrero et al 2015(Marrero et al , 2017Stanković et al 2022). Since dissimilatory reduction of ferric iron has not been described for At.…”

Section: Acid and Reductive Bioleaching Of Laterite Oresmentioning

confidence: 99%

Progress in bioleaching: part B, applications of microbial processes by the minerals industries

Roberto

Schippers

2022

Appl Microbiol Biotechnol

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This review provides an update to the last mini-review with the same title pertaining to recent developments in bioleaching and biooxidation published in 2013 (Brierley and Brierley). In the intervening almost 10 years, microbial processes for sulfide minerals have seen increased acceptance and ongoing but also declining commercial application in copper, gold, nickel and cobalt production. These processes have been applied to heap and tank leaching, nowadays termed biomining, but increasing concerns about the social acceptance of mining has also seen the re-emergence of in situ leaching and quest for broader applicability beyond uranium and copper. Besides metal sulfide oxidation, mineral dissolution via reductive microbial activities has seen experimental application to laterite minerals. And as resources decline or costs for their exploitation rise, mine waste rock and tailings have become more attractive to consider as easily accessible resources. As an advantage, they have already been removed from the ground and in some cases contain ore grades exceeding that of those currently being mined. These factors promote concepts of circular economy and efficient use and valorization of waste materials. Key points • Bioleaching of copper sulfide ore deposits is producing less copper today • Biooxidation of refractory gold ores is producing more gold than in the past • Available data suggest bioleaching and biooxidation processes reduce carbon emissions

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Simultaneously leaching of copper and manganese from low-grade ore from Boleo Mine by bacterial sulfur oxidation

Han,

Lee

2024

Geosci J

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Effect of mineralogy on Co and Ni extraction from Brazilian limonitic laterites via bioleaching and chemical leaching

Cited by 20 publications

References 32 publications

Do ferrous iron-oxidizing acidophiles (Leptospirillum spp.) disturb aerobic bioleaching of laterite ores by sulfur-oxidizing acidophiles (Acidithiobacillus spp.)?

Do ferrous iron-oxidizing acidophiles (Leptospirillum spp.) disturb aerobic bioleaching of laterite ores by sulfur-oxidizing acidophiles (Acidithiobacillus spp.)?

Progress in bioleaching: part B, applications of microbial processes by the minerals industries

Simultaneously leaching of copper and manganese from low-grade ore from Boleo Mine by bacterial sulfur oxidation

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