TY - JOUR
T1 - Extraction behavior of gold from hydrochloric acid solutions with ionic liquids as extractants
AU - Kakoi, Takahiko
AU - Yoshiyama, Mayumi
AU - Ariyoshi, Hiroyuki
AU - Komai, Masako
AU - Goto, Masahiro
N1 - Copyright:
Copyright 2018 Elsevier B.V., All rights reserved.
PY - 2012
Y1 - 2012
N2 - The extraction mechanism of gold(III) with ionic liquids as extractants has been investigated in a liquid-liquid extraction system. Ionic liquids were found to possess a high extraction potential for gold. The composition of the complex between gold and an ionic liquid was elucidated by slope analysis and Job's method. The gold exists as a tetrachloroaurate anion complex in hydrochloric acid solutions, which reacted with an ionic liquid molecule in chloroform and was extracted into the organic solutions. Furthermore, gold could be separated from copper in an acidic chloride medium by using the ionic liquid as the extractant.
AB - The extraction mechanism of gold(III) with ionic liquids as extractants has been investigated in a liquid-liquid extraction system. Ionic liquids were found to possess a high extraction potential for gold. The composition of the complex between gold and an ionic liquid was elucidated by slope analysis and Job's method. The gold exists as a tetrachloroaurate anion complex in hydrochloric acid solutions, which reacted with an ionic liquid molecule in chloroform and was extracted into the organic solutions. Furthermore, gold could be separated from copper in an acidic chloride medium by using the ionic liquid as the extractant.
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U2 - 10.15261/serdj.19.63
DO - 10.15261/serdj.19.63
M3 - Article
AN - SCOPUS:84879097803
SN - 1341-7215
VL - 19
SP - 63
EP - 68
JO - Solvent Extraction Research and Development
JF - Solvent Extraction Research and Development
ER -