The solubility of goethite with structurally incorporated nickel and cobalt: Implication for laterites

Ugwu, Ifeoma Mary; Sherman, David M.

doi:10.1016/j.chemgeo.2019.04.021

Cited by 14 publications

(15 citation statements)

References 29 publications

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“…Heavy metals can also be included in the structure of the iron mineral. For example, incorporation of cobalt and nickel into goethite has been proved earlier . Iron minerals that are present in clay material can be in the crystallized form or in amorphous form.…”

Section: Introductionmentioning

confidence: 87%

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Relationships between Heavy Metals and Their Connection to Amorphous and Total Iron in a Frequently Subsampled Clay Pit Core Sample

Jurković

Murtić

Bašić

et al. 2021

ACS Earth Space Chem.

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Naturally occurring heavy metals are commonly adsorbed onto substances with a large active surface, such as clays and iron oxyhydroxides. Different heavy metals could show different adsorbing preference to clays or iron oxyhydroxides, whereas a deep clay pit sediment sample with frequent subsampling gives the results that are more reliable. This study aimed to reveal differences in behavior of heavy metals and their relationships to total and amorphous iron in the deep clay pit core sample. In this research, 110 samples of the 33.0 m deep clay pit core sample were studied. Nine heavy metals from the clay open pit mine were investigated: total Fe (Fe t ) and amorphous (e.g., limonite) or poorly crystalline (e.g., ferrihydrite) (Fe am ), Mn, Co, Cr, Cu, Ni, Pb, V, and Zn. Total amounts of metals (M t ) were extracted by means of concentrated HNO 3 and HF. Amorphous amounts of iron (Fe am ) were extracted using the ammonium oxalate method. Concentrations of heavy metals were measured with an ICP-OES instrument. For statistical evaluation purposes, the following descriptive statistics tools were used: maximum, minimum, average, and median value. Behavior of heavy metals was investigated through standard deviation (SD), coefficient of variance (CV), skewness (SK), Z score (Z), PCA analysis, correlations, and correlations after Al normalization. The results of the SD and CV indicate that the clay pit sample is very heterogeneous. Heavy metals are mostly highly correlated with total and amorphous Fe. High correlation was found between the pH-related parameters, Fe t −Fe am , Fe−Mn, Fe−Ni, Fe−Co, Co−Ni, Co−Mn, and Pb−Cr (negative). Multivariate statistical analysis distinguished three subgroups: (1) Fe t , Fe am , Ni, Co, and Mn; (2) Pb, Zn, and Cr; and (3) Cu and V, suggesting a possible common source and similar behavior. Although clays are much more present in the samples, heavy metals are mostly connected to iron oxyhydroxides.

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Section: Introductionmentioning

confidence: 87%

“…For example, incorporation of cobalt and nickel into goethite has been proved earlier. 23 Iron minerals that are present in clay material can be in the crystallized form or in amorphous form. Minerals of iron that are in the crystallized form are hematite, ilmenite, magnetite, and gothite.…”

Section: Introductionmentioning

confidence: 99%

Relationships between Heavy Metals and Their Connection to Amorphous and Total Iron in a Frequently Subsampled Clay Pit Core Sample

Jurković

Murtić

Bašić

et al. 2021

ACS Earth Space Chem.

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“…A co-precipitation of cobalt and nickel can take place because both elements can substitute iron in goethite. Especially nickel can also adsorb on the surface of goethite, and thus, will also be removed partly from the solution [12][13][14].…”

Section: Theorymentioning

confidence: 99%

“…The precipitation is conducted at elevated temperatures above 80°C and a pH above 7 by adding sodium carbonate to the solution as shown in Eq. (12). [18]…”

Section: Theorymentioning

confidence: 99%

Concept for a Hydrometallurgical Processing of a Copper‐Cobalt‐Nickel Alloy Made from Manganese Nodules

Keber

Brückner

Elwert

et al. 2020

Chemie Ingenieur Technik

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The processing of manganese nodules for the production of raw materials has been a subject of research for many decades. The nodules contain many valuable metals like copper, cobalt and nickel. In recent years, the German Federal Institute for Geoscience and Natural Resources developed a process for the processing of manganese nodules based on a combined pyro‐ and a hydrometallurgical route. Clausthal University of Technology was assigned to develop the hydrometallurgical process for the treatment of a FeNiCuCo alloy. The developed process consists of pressurized sulfuric acid leaching with the suppression of hydrogen gas formation, precipitation and solvent extraction.

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“…Nickel and iron are the main components of stainless steel. Therefore, the production of ferro-nickel in the form of nickel and iron has no impact on the stainless-steel industry [11][12][13][14][15][16].…”

Section: Introductionmentioning

confidence: 99%

Extraction of Nickel from Garnierite Laterite Ore Using Roasting and Magnetic Separation with Calcium Chloride and Iron Concentrate

et al. 2020

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In this study, segregation roasting and magnetic separation are used to extract nickel from a garnierite laterite ore. The garnierite laterite ore containing 0.72% Ni, 0.029% Co, 8.65% Fe, 29.66% MgO, and 37.86% SiO 2 was collected in the Mojiang area of China. Garnierite was the Ni-bearing mineral; the other main minerals were potash feldspar, forsterite, tremolite, halloysite, quartz, and kaolinite in the garnierite laterite ore. The iron phase transformations show that nickel is transformed from (Ni,Mg)O·SiO 2 ·nH 2 O to a new nickel mineral phase dominated by [Ni]Fe solid solution; and iron changed from Fe 2 O 3 and FeOOH to a new iron mineral phase dominated by metal Fe and Fe 3 O 4 after segregation roasting. Ferronickel concentrate with Ni of 16.16%, Fe of 73.67%, and nickel recovery of 90.33% was obtained under the comprehensive conditions used: A roasting temperature of 1100 • C, a roasting time of 90 min, a calcium chloride dosage of 15%, an iron concentrate dosage of 30%, a coke dosage of 15%, a coke size of −1 + 0.5 mm, a magnetic separation grinding fineness of <45 µm occupying 90%, and a magnetic separation magnetic field intensity of H = 0.10 T. The main minerals in ferronickel concentrate are Fe, [Ni]Fe, Fe 3 O 4 , and a small amount of gangue minerals, such as CaO·SiO 2 and CaO·Al 2 O 3 ·SiO 2 .

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The solubility of goethite with structurally incorporated nickel and cobalt: Implication for laterites

Cited by 14 publications

References 29 publications

Relationships between Heavy Metals and Their Connection to Amorphous and Total Iron in a Frequently Subsampled Clay Pit Core Sample

Relationships between Heavy Metals and Their Connection to Amorphous and Total Iron in a Frequently Subsampled Clay Pit Core Sample

Concept for a Hydrometallurgical Processing of a Copper‐Cobalt‐Nickel Alloy Made from Manganese Nodules

Extraction of Nickel from Garnierite Laterite Ore Using Roasting and Magnetic Separation with Calcium Chloride and Iron Concentrate

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