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Recovery of Pure Co(II) and Ni(II) Solutions from Synthetic Sulfate Leach Liquor of Laterite Ores by Precipitation and Solvent Extraction.

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Title: Recovery of Pure Co(II) and Ni(II) Solutions from Synthetic Sulfate Leach Liquor of Laterite Ores by Precipitation and Solvent Extraction.
Authors: Wen, Jiangxian1 (AUTHOR), Tran, Thanh Tuan2 (AUTHOR), Lee, Man Seung1 (AUTHOR) mslee@mokpo.ac.kr
Source: Mineral Processing & Extractive Metallurgy Review. Jun2025, Vol. 46 Issue 4, p492-501. 10p.
Subjects: Laterite, Solvent extraction, Ores, Metal ions, Metals
Abstract: Recovery of nickel and cobalt from laterite ores is important to meet the demand for these metals. In this work, a process was developed for the separation of metal ions from synthetic sulfate leach liquor of laterite ores containing Fe(III), Al(III), Ni(II), Co(II), Ca(II), Mg(II), and Mn(II). First, Fe(III) and Al(III) were removed by precipitation of their hydroxides by adjusting solution pH and then Mn(II) was removed from the filtrate by oxidative precipitation with NaClO. Sequentially, Co(II) and Ni(II) from the filtrate containing Mg(II) and Ca(II) were separated by selective precipitation of CoS and NiS by adding Na2S solution, leaving Ca(II) and Mg(II) in the filtrate. The mixed precipitates of CoS and NiS were completely dissolved by 0.1 M HCl solution containing NaClO. Co(II) can be separated from Ni(II) present in the HCl solution by either oxidative precipitation with NaClO or selective extraction with saponified Cyanex 272. Optimum conditions for these procedures were obtained. Continuous experiments indicated that the purity of Co(II) and Ni(II) solutions was higher than 99%. [ABSTRACT FROM AUTHOR]
Copyright of Mineral Processing & Extractive Metallurgy Review is the property of Taylor & Francis Ltd and its content may not be copied or emailed to multiple sites without the copyright holder's express written permission. Additionally, content may not be used with any artificial intelligence tools or machine learning technologies. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract. (Copyright applies to all Abstracts.)
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DbLabel: Engineering Source
An: 185256813
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PubTypeId: academicJournal
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  Label: Title
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  Data: Recovery of Pure Co(II) and Ni(II) Solutions from Synthetic Sulfate Leach Liquor of Laterite Ores by Precipitation and Solvent Extraction.
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  Data: <searchLink fieldCode="AR" term="%22Wen%2C+Jiangxian%22">Wen, Jiangxian</searchLink><relatesTo>1</relatesTo> (AUTHOR)<br /><searchLink fieldCode="AR" term="%22Tran%2C+Thanh+Tuan%22">Tran, Thanh Tuan</searchLink><relatesTo>2</relatesTo> (AUTHOR)<br /><searchLink fieldCode="AR" term="%22Lee%2C+Man+Seung%22">Lee, Man Seung</searchLink><relatesTo>1</relatesTo> (AUTHOR)<i> mslee@mokpo.ac.kr</i>
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  Data: <searchLink fieldCode="JN" term="%22Mineral+Processing+%26+Extractive+Metallurgy+Review%22">Mineral Processing & Extractive Metallurgy Review</searchLink>. Jun2025, Vol. 46 Issue 4, p492-501. 10p.
– Name: Subject
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  Group: Su
  Data: <searchLink fieldCode="DE" term="%22Laterite%22">Laterite</searchLink><br /><searchLink fieldCode="DE" term="%22Solvent+extraction%22">Solvent extraction</searchLink><br /><searchLink fieldCode="DE" term="%22Ores%22">Ores</searchLink><br /><searchLink fieldCode="DE" term="%22Metal+ions%22">Metal ions</searchLink><br /><searchLink fieldCode="DE" term="%22Metals%22">Metals</searchLink>
– Name: Abstract
  Label: Abstract
  Group: Ab
  Data: Recovery of nickel and cobalt from laterite ores is important to meet the demand for these metals. In this work, a process was developed for the separation of metal ions from synthetic sulfate leach liquor of laterite ores containing Fe(III), Al(III), Ni(II), Co(II), Ca(II), Mg(II), and Mn(II). First, Fe(III) and Al(III) were removed by precipitation of their hydroxides by adjusting solution pH and then Mn(II) was removed from the filtrate by oxidative precipitation with NaClO. Sequentially, Co(II) and Ni(II) from the filtrate containing Mg(II) and Ca(II) were separated by selective precipitation of CoS and NiS by adding Na2S solution, leaving Ca(II) and Mg(II) in the filtrate. The mixed precipitates of CoS and NiS were completely dissolved by 0.1 M HCl solution containing NaClO. Co(II) can be separated from Ni(II) present in the HCl solution by either oxidative precipitation with NaClO or selective extraction with saponified Cyanex 272. Optimum conditions for these procedures were obtained. Continuous experiments indicated that the purity of Co(II) and Ni(II) solutions was higher than 99%. [ABSTRACT FROM AUTHOR]
– Name: AbstractSuppliedCopyright
  Label:
  Group: Ab
  Data: <i>Copyright of Mineral Processing & Extractive Metallurgy Review is the property of Taylor & Francis Ltd and its content may not be copied or emailed to multiple sites without the copyright holder's express written permission. Additionally, content may not be used with any artificial intelligence tools or machine learning technologies. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract.</i> (Copyright applies to all Abstracts.)
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RecordInfo BibRecord:
  BibEntity:
    Identifiers:
      – Type: doi
        Value: 10.1080/08827508.2024.2346652
    Languages:
      – Code: eng
        Text: English
    PhysicalDescription:
      Pagination:
        PageCount: 10
        StartPage: 492
    Subjects:
      – SubjectFull: Laterite
        Type: general
      – SubjectFull: Solvent extraction
        Type: general
      – SubjectFull: Ores
        Type: general
      – SubjectFull: Metal ions
        Type: general
      – SubjectFull: Metals
        Type: general
    Titles:
      – TitleFull: Recovery of Pure Co(II) and Ni(II) Solutions from Synthetic Sulfate Leach Liquor of Laterite Ores by Precipitation and Solvent Extraction.
        Type: main
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      – PersonEntity:
          Name:
            NameFull: Wen, Jiangxian
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          Name:
            NameFull: Tran, Thanh Tuan
      – PersonEntity:
          Name:
            NameFull: Lee, Man Seung
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          Dates:
            – D: 01
              M: 06
              Text: Jun2025
              Type: published
              Y: 2025
          Identifiers:
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              Value: 08827508
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              Value: 46
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              Value: 4
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            – TitleFull: Mineral Processing & Extractive Metallurgy Review
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