Combined extraction of metals and production of Mg(OH)₂ for CO₂ sequestration from nickel mine ore and overburden

Inês Romão, Licínio M. Gando-Ferreira, Ron Zevenhoven

    Tutkimustuotos: LehtiartikkeliArtikkeliTieteellinenvertaisarvioitu

    19 Sitaatiot (Scopus)

    Abstrakti

    Carbon storage by mineralisation (CSM) is an option for CO2 emissions mitigation that has been under intensive study at Abo Akademi (AA), Finland. Magnesium from silicate rocks is extracted with recoverable ammonium salts at 250-500 degrees C. The extracted elements are separated by selective precipitation and Mg is subsequently carbonated in a pressurised fluidised bed. This work studies the applicability of the process for co-extraction of Ni, Cu, Fe and Mg from nickel ore and nickel mine waste rock (overburden). The rock samples were collected from the Hitura Nickel mine, Finland. The results show that it is possible to co-extract the listed elements and integrate CSM (by the AA process) with steelmaking and Ni production industries.
    AlkuperäiskieliEi tiedossa
    Sivut167–170
    Sivumäärä4
    JulkaisuMinerals Engineering
    Vuosikerta53
    DOI - pysyväislinkit
    TilaJulkaistu - 2013
    OKM-julkaisutyyppiA1 Julkaistu artikkeli, soviteltu

    Keywords

    • Ammonium bisulphate
    • Ammonium sulphate
    • Carbon storage by mineralisation
    • CO2 emissions
    • Nickel ore
    • Overburden

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