Extraction of Gallium(III) from Hydrochloric Acid Solutions by Trioctylammonium-based Mixed Ionic Liquids
Extraction of Gallium(III) from Hydrochloric Acid Solutions by Trioctylammonium-based Mixed Ionic Liquids
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DOI：
10.2116/analsci.28.1009
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发表时间：
2012-10-01
影响因子：
1.6
通讯作者：
Kudo, Yoshihiro
中科院分区：
文献类型：
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作者：
Katsuta, Shoichi;Okai, Miho;Kudo, Yoshihiro
研究了三正辛基双(三氟甲磺酸)酰胺([TOAHI][NTf2])和三正辛基硝酸铵([TOAH][NO3])两种质子型离子液体从盐酸溶液中对铝(III)、镓(III)和铟(III)的萃取性。在盐酸浓度为4摩尔L-1或更高时，镓(III)被几乎定量地萃取，萃取率顺序为：Ga>；Al>；>；In。随着混合离子液体中[TOAH][NO3]含量的增加，镓(III)的萃取率增加。提取的镓(III)用硝酸水溶液定量反萃。用混合离子液体从含过量铟(III)的盐酸溶液中分离和回收镓(III)。
The extractabilities of aluminium(III), gallium(III), and indium(III) from hydrochloric acid solutions were investigated using a mixture of two protic ionic liquids, trioctylammonium bis(trifluoromethanesulfonyl)amide ([TOAHI][NTf2]) and trioctylammonium nitrate ([TOAH][NO3]). At a HCl concentration of 4 mol L-1 or more, gallium(III) was nearly quantitatively extracted and the extractability order was Ga > Al >> In. The extractability of gallium(III) increased with increasing [TOAH][NO3] content in the mixed ionic liquid. The extracted gallium(III) was quantitatively stripped with aqueous nitric acid solutions. The separation and recovery of gallium(III) from hydrochloric acid solutions containing excess indium(III) was demonstrated using the mixed ionic liquid.