A Kinetic Study on Enhanced Cementation of Gold Ions by Galvanic Interactions between Aluminum (Al) as an Electron Donor and Activated Carbon (AC) as an Electron Mediator in Ammonium Thiosulfate System

Jeon, Sanghee; Bright, Sharrydon; Park, Ilhwan; Kuze, Akuru; Ito, Mayumi; Hiroyoshi, Naoki

A Kinetic Study on Enhanced Cementation of Gold Ions by Galvanic Interactions between Aluminum (Al) as an Electron Donor and Activated Carbon (AC) as an Electron Mediator in Ammonium Thiosulfate System

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

Minerals, 2022, 12(1), 91

Permalink : https://hdl.handle.net/2115/85048

このアイテムのアクセス数:308件（2026-02-13 01:04 集計）

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アクセス権	metadata only access
URI	https://hdl.handle.net/2115/85048
タイトル	A Kinetic Study on Enhanced Cementation of Gold Ions by Galvanic Interactions between Aluminum (Al) as an Electron Donor and Activated Carbon (AC) as an Electron Mediator in Ammonium Thiosulfate System
著者	Jeon, Sanghee ; Bright, Sharrydon ; Park, Ilhwan ; Kuze, Akuru ; 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 Kuze, Akuru
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	gold
	cementation
	galvanic interaction
	aluminum
	activated carbon
	kinetics
	ammonium thiosulfate solution
	mass transfer
発行日	2022-01
出版者	MDPI
収録物名	Minerals
巻(号)	12(1)
ページ	91
抄録	The enhanced cementation technique by galvanic interaction of aluminum (Al; electron donor) and activated carbon (AC; electron mediator) to recover gold (Au) ions from the ammonium thiosulfate solution is a promising technique to eliminate the challenges of poor recovery in the system. This study presents the kinetics of Au ion cementation in an ammonium thiosulfate lixiviant as functions of initial Au concentration, size/amount of Al and AC, temperature, and shaking speed. The recovery results basically followed first order kinetics and showed that the cementation rate increased with a higher initial concentration of Au, smaller electron donor size, greater both electron donor and mediator quantity, decrease in temperature, and higher shaking speed in the system, while size of electron mediator did not significantly affect Au recovery.
資源タイプ	学術雑誌論文
出版タイプ	Version of Record
権利情報	© 2022 by the authors; licensee MDPI, Basel, Switzerland. This article is an open access article distributed under the terms and conditions of the Creative Commons Attribution License (http://creativecommons.org/licenses/by/4.0/).
関連情報 (isIdenticalTo)	出版社版DOI https://doi.org/10.3390/min12010091