Effect of Impurities in Precious Metal Recovery by Electrodeposition-Redox Replacement Method from Industrial Side-Streams and Process Streams

Tutkimustuotos: Artikkeli kirjassa/konferenssijulkaisussavertaisarvioitu

Tutkijat

Organisaatiot

  • Outotec Research Center

Kuvaus

The recovery of precious metals (Ag and Au) by electrodeposition-redox replacement (EDRR) method was studied in three different solutions: sulfate based Zn-Fe-Ag solution, chloride based Cu-Fe-Au solution and industrial multi-metal chloride solution. The common factor to these solutions is that the base (Zn or Cu) metal is present in g/L scale while the precious metal is present in ppm or lower level. The results showed that the presence of impurity Fe (in g/L scale) decreases the recovery efficiency of precious metals but at the same time, it may lead to selective dissolution of the base metal, resulting in the higher purity of the precious metal deposit. Moreover, a successful deposition of Au on carbon nanotube (CNT) films from industrial multi-metal solution was demonstrated.

Yksityiskohdat

AlkuperäiskieliEnglanti
OtsikkoECS Transactions
TilaJulkaistu - toukokuuta 2018
OKM-julkaisutyyppiA4 Artikkeli konferenssijulkaisuussa
TapahtumaElectrochemical Society Meeting - Washington State Convention Center, Seattle, Yhdysvallat
Kesto: 13 toukokuuta 201817 toukokuuta 2018
Konferenssinumero: 233
https://www.electrochem.org/233

Julkaisusarja

NimiECS TRANSACTIONS
KustantajaElectrochemical Society, Inc.
ISSN (painettu)1938-5862

Conference

ConferenceElectrochemical Society Meeting
LyhennettäECS
MaaYhdysvallat
KaupunkiSeattle
Ajanjakso13/05/201817/05/2018
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