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

A1 Originalartikel i en vetenskaplig tidskrift (referentgranskad)

Interna författare/redaktörer

Publikationens författare: Inês S. Romão, Licínio M. Gando-Ferreira, Ron Zevenhoven
Publiceringsår: 2013
Tidskrift: Minerals Engineering
Tidskriftsakronym: MINER ENG
Volym: 53
Artikelns första sida, sidnummer: 167
Artikelns sista sida, sidnummer: 170
Antal sidor: 4
ISSN: 0892-6875
eISSN: 1872-9444


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.


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

Senast uppdaterad 2020-29-01 vid 06:00