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.

Continuous ion exchange for hydrometallurgy: Purification of Ag(I)–NaCl from divalent metals with aminomethylphosphonic resin using counter-current and cross-current operation

Virolainen, Sami; Suppula, Ilkka; Sainio, Tuomo (2014)

Katso/Avaa
virolainen_et_al_continuous_ion_exchange_final_draft.pdf (766.5Kb)
Lataukset: 


Post-print / Final draft

Virolainen, Sami
Suppula, Ilkka
Sainio, Tuomo
2014

Hydrometallurgy

142

84-93

Elsevier

School of Engineering Science

https://doi.org/10.1016/j.hydromet.2013.11.012
Näytä kaikki kuvailutiedot
Julkaisun pysyvä osoite on
http://urn.fi/URN:NBN:fi-fe201901283315

Tiivistelmä

Continuous simulated moving bed (SMB) type ion exchange processes are usually operated in cross-current mode for metal separations whereas counter-current mode is commonly used for fine chemicals. The use of both process types was investigated for hydrometallurgical purification of Ag–NaCl solution from divalent impurity metals (Ca, Mg, Pb, Zn). An amphoteric aminomethylphosphonic functional ion exchange resin (Lewatit TP-260) was used as stationary phase. Also the influence of controlled partial neutralization of the resin on process performance was investigated. Successful separation was obtained with both counter-current and cross-current configurations. Ag product was collected in over 99% purity with practically 100% yield. All of the impurity metals were collected at the extract, and none of them migrated to the controlled partial neutralization zone. Column efficiency and the liquid to solid flow rate ratio were found to have strong influences on process performance. It was thus shown that counter-current simulated moving-bed process can be utilized for purification of precious metal solutions, especially when high yield is important. Remarkably improved performance is obtained by implementing a controlled partial neutralization procedure as an additional step within the continuous ion exchange unit.

Lähdeviite

Virolainen, S., Suppula, I., Sainio, T., 2014. Continuous ion exchange for hydrometallurgy: Purification of Ag(I)–NaCl from divalent metals with aminomethylphosphonic resin using counter-current and cross-current operation. Hydrometallurgy 142, 84–93. doi:10.1016/j.hydromet.2013.11.012

Alkuperäinen verkko-osoite

https://www.sciencedirect.com/science/article/pii/S0304386X13002429?via%3Dihub
Kokoelmat
  • Tieteelliset julkaisut [727]
LUT-yliopisto
PL 20
53851 Lappeenranta
Ota yhteyttä | Lähetä palautetta | Tietosuoja | Saavutettavuusseloste
 

 

Tämä kokoelma

JulkaisuajatTekijätNimekkeetKoulutusohjelmaAvainsanatSyöttöajatYhteisöt ja kokoelmat

Omat tiedot

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