Hyppää sisältöön
    • Suomeksi
    • På svenska
    • In English
  • Suomeksi
  • In English
  • Kirjaudu
Näytä aineisto 
  •   Etusivu
  • LUTPub
  • Tieteelliset julkaisut
  • Näytä aineisto
  •   Etusivu
  • LUTPub
  • Tieteelliset julkaisut
  • Näytä aineisto
JavaScript is disabled for your browser. Some features of this site may not work without it.

Recovery of valuable metals from argon oxygen decarburization (AOD) dusts by leaching, filtration and solvent extraction

Virolainen, Sami; Salmimies, Riina; Hasan, Mehdi; Häkkinen, Antti; Sainio, Tuomo (2013)

Katso/Avaa
virolainen_et_al_recovery_of_valuable_metals_final_draft.pdf (269.0Kb)
Lataukset: 


Post-print / Final draft

Virolainen, Sami
Salmimies, Riina
Hasan, Mehdi
Häkkinen, Antti
Sainio, Tuomo
2013

Hydrometallurgy

140

181-189

Elsevier

School of Engineering Science

https://doi:10.1016/j.hydromet.2013.10.002
Näytä kaikki kuvailutiedot
Julkaisun pysyvä osoite on
https://urn.fi/URN:NBN:fi-fe201901283311

Tiivistelmä

For each ton of steel produced from a typical steelmaking plant, up to several tens of kilograms of dust, containing significant amounts of valuable and/or environmentally harmful metals, are also produced. A hydrometallurgical route for the recovery of these metals from argon oxygen decarburization (AOD) dusts, with selective leaching, filtration and solvent extraction was studied experimentally. Batch leaching of dusts with concentrated H2SO4 was found to be difficult to optimize for yields for the target metals (Zn and Mo), while keeping Fe in the solid phase. Zn and Mo could be recovered with comparable yields, while keeping Fe totally undissolved, by controlled leaching at pH above 3. Water was successfully used to leach Mo with 45% yield, while Ca, K, Cr, Mg, Pb, and Mn were leached as impurities. It was found that solid/liquid separation of the undissolved solids by pressure filtration was challenging and it was further observed that the properties of the initial dusts have a strong influence on this process step. D2EHPA was found to provide good extraction selectivity for Zn from acidic leaching solutions, except over Fe. A pure Mo/Cr mixture was extracted with hydroxyoxime LIX 84-I, trioctylamine TOA and quaternary ammonium salt Aliquat 336. The best Mo/Cr selectivity was achieved with Aliquat 336.

Lähdeviite

Virolainen, S., Salmimies, R., Hasan, M., Häkkinen, A., Sainio, T., 2013. Recovery of valuable metals from argon oxygen decarburization (AOD) dusts by leaching, filtration and solvent extraction. Hydrometallurgy 140, 181–189. doi:10.1016/j.hydromet.2013.10.002

Alkuperäinen verkko-osoite

https://www.sciencedirect.com/science/article/pii/S0304386X13001990
Kokoelmat
  • Tieteelliset julkaisut [1560]
LUT-yliopisto
PL 20
53851 Lappeenranta
Ota yhteyttä | Tietosuoja | Saavutettavuusseloste
 

 

Tämä kokoelma

JulkaisuajatTekijätNimekkeetKoulutusohjelmaAvainsanatSyöttöajatYhteisöt ja kokoelmat

Omat tiedot

Kirjaudu sisäänRekisteröidy
LUT-yliopisto
PL 20
53851 Lappeenranta
Ota yhteyttä | Tietosuoja | Saavutettavuusseloste