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On the Use of Magnetite for Gold Recovery From Chloride Solution

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Title: On the Use of Magnetite for Gold Recovery From Chloride Solution
Authors: Alorro, Richard Diaz Browse this author
Hiroyoshi, Naoki Browse this author
Kijitani, Hajime Browse this author
Ito, Mayumi Browse this author
Tsunekawa, Masami Browse this author →KAKEN DB
Keywords: gold
hydrometallurgy
iron oxide
magnetite
reductive precipitation
sorbent
Issue Date: Oct-2010
Publisher: Taylor & Francis
Journal Title: Mineral Processing and Extractive Metallurgy Review
Volume: 31
Issue: 4
Start Page: 201
End Page: 213
Publisher DOI: 10.1080/08827508.2010.483359
Abstract: The sorption of AuCl4- from chloride solution on synthetic and natural magnetite powders was investigated by batch-sorption experiments. The effects of different parameters on the recovery were studied. The results showed that Au uptake by magnetite was influenced by pH, contact time, chloride concentration, and initial Au concentration. Gold (Au) uptake by synthetic and natural magnetite was at a maximum at pH 6-7 with sorption amounts of 4.4 μmol/g and 5.0 μmol/g, respectively, after 24 hours at an initial Au concentration of 0.05 mol/m3. The SEM-EDX and BSE analyses of the magnetite particles after treatment confirmed the presence of Au precipitates on the Fe3O4 surface.
Rights: This is an electronic version of an article published in Mineral Processing and Extractive Metallurgy Review, 31(4) Oct. 2010, 201-213. Mineral Processing and Extractive Metallurgy Review is available online at: http://www.informaworld.com/openurl?genre=article&issn=0882-7508&volume=31&issue=4&spage=201
Type: article (author version)
URI: http://hdl.handle.net/2115/47187
Appears in Collections:工学院・工学研究院 (Graduate School of Engineering / Faculty of Engineering) > 雑誌発表論文等 (Peer-reviewed Journal Articles, etc)

Submitter: 恒川 昌美

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