IDEAS home Printed from https://ideas.repec.org/a/epw/ejeng0/v6y2021i6id62572.html

Preliminary Study on the Reductive Leaching of Manganese Ores using FeSO?/Iron Powder as Reducing Agents under Room Temperature

Author

Listed:
  • Kofi Moro

    (TU Bergakademie Freiberg, Germany)

  • Frank Haubrich

    (G.E.O.S. Ingenieurgesellschaft mbH Freiberg, Germany)

  • Mirko Martin

    (G.E.O.S. Ingenieurgesellschaft mbH Freiberg, Germany)

Abstract

The leaching of manganese (Mn) ore in sulphuric acid (H2SO4) under reductive conditions has been studied. The effects of leaching parameters such as ore/reductant mass ratio, acid concentration, ore particle size, solid/liquid ratio, leaching time and different reductant potential on the maximum recovery of manganese have been investigated. The optimal leaching conditions were ore/reductant mass ratio of 1:3.4, acid concentration of 10% v/v H2SO4, ore particle size of 63-200 µm, particle size of iron powder of –150 µm, solid/liquid ratio of 1:20, and leaching time of 1.5 hours at room temperature. A comparative analysis on the recovery of manganese ore was also investigated under the optimal leaching conditions for two different reductants, iron sulphate (FeSO4) and iron powder. The maximum manganese recoveries at the optimal leaching conditions in the presence of FeSO4 and iron powder are 80.6% and 95%, respectively. The results indicate that manganese can readily be leached during short time at room temperature. Furthermore, iron powder has a stronger reducing power compared to FeSO4 with respect to manganese ore recovery.

Suggested Citation

  • Kofi Moro & Frank Haubrich & Mirko Martin, 2021. "Preliminary Study on the Reductive Leaching of Manganese Ores using FeSO?/Iron Powder as Reducing Agents under Room Temperature," European Journal of Engineering and Technology Research, European Open Science, vol. 6(6), pages 14-18, September.
    • Handle: RePEc:epw:ejeng0:v:6:y:2021:i:6:id:62572
    DOI: 10.24018/ejeng.2021.6.6.2572
    as

    Download full text from publisher

    File URL: https://eu-opensci.org/index.php/ejeng/article/view/62572
    File Function: Abstract page
    Download Restriction: no
    File URL: https://eu-opensci.org/index.php/ejeng/article/download/62572/12725
    File Function: Full text
    Download Restriction: no
    File URL: https://libkey.io/10.24018/ejeng.2021.6.6.2572?utm_source=ideas
    LibKey link: if access is restricted and if your library uses this service, LibKey will redirect you to where you can use your library subscription to access this item
    ---><---

    More about this item

    Keywords

    ;
    ;
    ;
    ;
    ;

    Statistics

    Access and download statistics

    Corrections

    All material on this site has been provided by the respective publishers and authors. You can help correct errors and omissions. When requesting a correction, please mention this item's handle: RePEc:epw:ejeng0:v:6:y:2021:i:6:id:62572. See general information about how to correct material in RePEc.

    If you have authored this item and are not yet registered with RePEc, we encourage you to do it here. This allows to link your profile to this item. It also allows you to accept potential citations to this item that we are uncertain about.

    We have no bibliographic references for this item. You can help adding them by using this form .

    If you know of missing items citing this one, you can help us creating those links by adding the relevant references in the same way as above, for each refering item. If you are a registered author of this item, you may also want to check the "citations" tab in your RePEc Author Service profile, as there may be some citations waiting for confirmation.

    For technical questions regarding this item, or to correct its authors, title, abstract, bibliographic or download information, contact: Support (email available below). General contact details of provider: https://eu-opensci.org/index.php/ejeng .

    Please note that corrections may take a couple of weeks to filter through the various RePEc services.

    IDEAS is a RePEc service. RePEc uses bibliographic data supplied by the respective publishers.