Separation of gallium and copper from hydrochloric acid by D2EHPA

被引:9
作者
Chen, Wei-Shen [1 ]
Huang, Shih-Lin [1 ]
Chang, Fang-Chih [2 ]
Chang, Juu-En [3 ]
Wang, Ya-Nang [2 ]
机构
[1] Natl Cheng Kung Univ, Sustainable Environm Res Ctr, Tainan 709, Taiwan
[2] Natl Taiwan Univ, Expt Forest, Chu Shan 55750, Nan Tou, Taiwan
[3] Natl Cheng Kung Univ, Dept Environm Engn, Tainan 70101, Taiwan
关键词
Strip; Liquid-liquid extraction; D(2)EHPA; Gallium(III); Copper(II); LIQUID-LIQUID-EXTRACTION; RECOVERY; INDIUM; CYANEX-923;
D O I
10.1080/19443994.2014.929035
中图分类号
TQ [化学工业];
学科分类号
0817 ;
摘要
Solvent extraction offers a better option for gallium recovery among many techniques. The liquid-liquid extraction of gallium(III)-copper(II) solution from hydrochloric acid medium using di-2-ethyl-hexylphosphoric acid (D(2)EHPA) in kerosene was studied. The effect of the reagent concentration and other parameters on the extraction of gallium(III)-copper(II) was also studied. The stoichiometry of the extracted species of gallium(III) was determined based on the slope analysis method. The maximum extraction efficiency of gallium was 99.9%. The gallium that contained organic phase could be stripped completely by 1 M HCl.
引用
收藏
页码:1452 / 1456
页数:5
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