The Effects of Coexisting Copper, Iron, Cobalt, Nickel, and Zinc Ions on Gold Recovery by Enhanced Cementation via Galvanic Interactions between Zero-Valent Aluminum and Activated Carbon in Ammonium Thiosulfate Systems

Jeon, Sanghee; Bright, Sharrydon; Park, Ilhwan; Tabelin, Carlito Baltazar; Ito, Mayumi; Hiroyoshi, Naoki

The Effects of Coexisting Copper, Iron, Cobalt, Nickel, and Zinc Ions on Gold Recovery by Enhanced Cementation via Galvanic Interactions between Zero-Valent Aluminum and Activated Carbon in Ammonium Thiosulfate Systems

Jeon, Sanghee; Bright, Sharrydon; Park, Ilhwan et al.

Metals, 2021, 11(9), 1352

Permalink : https://hdl.handle.net/2115/83054

このアイテムのアクセス数:516件（2026-08-15 08:07 集計）

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論文情報

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アクセス権	open access
URI	https://hdl.handle.net/2115/83054
タイトル	The Effects of Coexisting Copper, Iron, Cobalt, Nickel, and Zinc Ions on Gold Recovery by Enhanced Cementation via Galvanic Interactions between Zero-Valent Aluminum and Activated Carbon in Ammonium Thiosulfate Systems
著者	Jeon, Sanghee ; Bright, Sharrydon ; Park, Ilhwan ; Tabelin, Carlito Baltazar ; Ito, Mayumi ; Hiroyoshi, Naoki
e-Rad_Researcher 20847701 著者名 Jeon, Sanghee
著者名 Bright, Sharrydon
e-Rad_Researcher 80844753 著者名 Park, Ilhwan
著者名 Tabelin, Carlito Baltazar
e-Rad_Researcher 10339690 著者名 Ito, Mayumi
e-Rad_Researcher 50250486 著者名 Hiroyoshi, Naoki
言語	英語
キーワード	ammonium thiosulfate
	gold
	cementation
	galvanic interaction
	zero-valent aluminum
	activated carbon
発行日	2021-09
出版者	MDPI
収録物名	Metals
巻(号)	11(9)
ページ	1352
抄録	The use of galvanic interactions between zero-valent aluminum (ZVAl) and activated carbon (AC) to recover gold (Au) ions is a promising technique to overcome the challenges due to the poor recovery in ammonium thiosulfate systems, but the applicability to practical Au ore processing remains elusive so far. The present study describes (1) the recovery of Au ions from low Au concentrations, which are typical concentrations used in Au ore processing; and (2) an investigation into the effects of various coexisting base metal ions that can be present in pregnant ore-leached solutions. The results showed that high Au recovery (i.e., over 85%) was obtained even at low Au concentrations under the following conditions: 1:1 of 0.15 g of ZVAl and AC with 10 mL of ammonium thiosulfate solution containing 5 mg/L of Au ions at 25 degrees C for 1 h in an anoxic atmosphere. Selected coexisting metal ions (i.e., copper, iron, cobalt, nickel, and zinc) were studied to establish their effects on Au recovery, and the results showed that the Au recovery was enhanced (about 90%) when copper ions coexist in the solution with minimal effects from other competing base metal ions.
資源タイプ	学術雑誌論文
出版タイプ	Version of Record
関連情報 (isIdenticalTo)	出版社版DOI https://doi.org/10.3390/met11091352