Alloy formation during the cementation of gold on copper from ammoniacal thiosulfate solutions

Research output: Chapter in Book/Report/Conference proceedingConference contribution

2 Citations (Scopus)

Abstract

Gold-copper alloys are shown to form during the cementation of gold on copper in a solution containing 0.25M [S2O32-] at 25°C. The alloy composition is strongly dependent on the initial Cu:Au ratio in solution and ranges from Au3Cu to AuCu3. XPS results for Au, Cu, S, and O are reported as a function of depth through an entire deposited film with an initial solution containing 20 ppm [Au] and 30 ppm [Cu]. The deposit contained about 20 atomic % gold and was predominantly Cu3Au. Underpotential deposition (UPD) theory is discussed as a mechanism for explaining the formation of these alloys. Several other systems that produce alloys during contact reduction/cementation are also discussed.

Original languageEnglish (US)
Title of host publicationProceedings of the TMS Fall Extraction and Processing Conference
EditorsC. Young, A. Alfantazi, C. Anderson, A. James
Pages1167-1177
Number of pages11
Volume2
StatePublished - 2003
EventHydrometallurgy 2003: Proceedings of the 5th International Symposium - Vancouver, BC, Canada
Duration: Aug 24 2003Aug 27 2003

Other

OtherHydrometallurgy 2003: Proceedings of the 5th International Symposium
CountryCanada
CityVancouver, BC
Period8/24/038/27/03

Fingerprint

Thiosulfates
Gold
Copper
Gold alloys
Copper alloys
Deposits
X ray photoelectron spectroscopy
Chemical analysis

ASJC Scopus subject areas

  • Filtration and Separation

Cite this

Lee, J., & Hiskey, J. B. (2003). Alloy formation during the cementation of gold on copper from ammoniacal thiosulfate solutions. In C. Young, A. Alfantazi, C. Anderson, & A. James (Eds.), Proceedings of the TMS Fall Extraction and Processing Conference (Vol. 2, pp. 1167-1177)

Alloy formation during the cementation of gold on copper from ammoniacal thiosulfate solutions. / Lee, Jaeheon; Hiskey, J Brent.

Proceedings of the TMS Fall Extraction and Processing Conference. ed. / C. Young; A. Alfantazi; C. Anderson; A. James. Vol. 2 2003. p. 1167-1177.

Research output: Chapter in Book/Report/Conference proceedingConference contribution

Lee, J & Hiskey, JB 2003, Alloy formation during the cementation of gold on copper from ammoniacal thiosulfate solutions. in C Young, A Alfantazi, C Anderson & A James (eds), Proceedings of the TMS Fall Extraction and Processing Conference. vol. 2, pp. 1167-1177, Hydrometallurgy 2003: Proceedings of the 5th International Symposium, Vancouver, BC, Canada, 8/24/03.
Lee J, Hiskey JB. Alloy formation during the cementation of gold on copper from ammoniacal thiosulfate solutions. In Young C, Alfantazi A, Anderson C, James A, editors, Proceedings of the TMS Fall Extraction and Processing Conference. Vol. 2. 2003. p. 1167-1177
Lee, Jaeheon ; Hiskey, J Brent. / Alloy formation during the cementation of gold on copper from ammoniacal thiosulfate solutions. Proceedings of the TMS Fall Extraction and Processing Conference. editor / C. Young ; A. Alfantazi ; C. Anderson ; A. James. Vol. 2 2003. pp. 1167-1177
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