Projects per year
Abstract
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.
Original language | English |
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Title of host publication | ECS Transactions |
Publisher | Electrochemical Society, Inc. |
Pages | 59-67 |
Number of pages | 9 |
Volume | 85 |
Edition | 4 |
ISBN (Electronic) | 9781607685395 |
DOIs | |
Publication status | Published - May 2018 |
MoE publication type | A4 Article in a conference publication |
Event | Electrochemical Society Meeting - Washington State Convention Center, Seattle, United States Duration: 13 May 2018 → 17 May 2018 Conference number: 233 https://www.electrochem.org/233 |
Publication series
Name | ECS TRANSACTIONS |
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Publisher | Electrochemical Society, Inc. |
ISSN (Print) | 1938-5862 |
Conference
Conference | Electrochemical Society Meeting |
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Abbreviated title | ECS |
Country/Territory | United States |
City | Seattle |
Period | 13/05/2018 → 17/05/2018 |
Internet address |
Fingerprint
Dive into the research topics of 'Effect of Impurities in Precious Metal Recovery by Electrodeposition-Redox Replacement Method from Industrial Side-Streams and Process Streams'. Together they form a unique fingerprint.Projects
- 1 Finished
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NoWASTE: Novel Precious Metal Recovery from Waste Streams
Yliniemi, K., Lundström, M., Wilson, B., Barranco Asensio, V., Karppinen, A., Hannula, P., Halli, P., Revitzer, H. & Wang, Z.
01/09/2016 → 31/12/2020
Project: Academy of Finland: Other research funding
Equipment
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Raw Materials Research Infrastructure
Maarit Karppinen (Manager)
School of Chemical EngineeringFacility/equipment: Facility
Activities
- 1 Conference presentation
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Sustainable Precious Metal Recovery by Electrodeposition-Redox Replacement (EDRR)
Kirsi Yliniemi (Speaker), Benjamin Wilson (Contributor), Ivan Korolev (Contributor), Petteri Halli (Contributor), Pyry-Mikko Hannula (Contributor), Zulin Wang (Contributor) & Mari Lundström (Contributor)
4 Sep 2018Activity: Talk or presentation types › Conference presentation