| 论文题目 | Recovery of Ga(III) from chloride solutions by solvent extraction with Cextrant 230 |
| 作 者 | ; Xueke Zhou,Zhifeng Zhang, Shengting Kuang, Yanling Li, Yuqin Ma,* Yunhui Li, Wuping Liao |
| 发表年度 | MAY 2019 |
| 刊物名称 | HYDROMETALLURGY |
| 卷、期、页码 | 185; ; 76-81 |
| 影响因子 | |
| 论文摘要 | In the present work, an alpha-aminophosphonate extractant di(2-ethylhexyl) [N-(2-ethylhexyl)aminomethyl] phosphonate (Cextrant 230, L) was applied for the selective extraction and recovery of Ga(III) from the chloride solutions. The extraction of Ga(III) was compared with that of other metal ions such as Fe3+, Fe2+, Zn2+, Al3+, Mg2+ and Sn2+. The extracted complex of Ga(III) was deduced to be HGaCl4 center dot L. The extraction equilibrium constant and thermodynamic parameters (Delta G, Delta H and Delta S) were calculated. The positive value of Delta H indicates that the extraction reaction of Ga(III) is an endothermic process. The loading capacity of 30% (v/v) Cextrant 230 for Ga(III) was determined to be 0.38 mol/L. The loaded gallium can be complete stripped by distilled water. A process was established for the selective recovery of Ga(III), by which the purity of the gallium product reached 94% with a yield of 89.5%. |
| 全文链接 | https://www.sciencedirect.com/science/article/pii/S0304386X18308181?via%3Dihub |
| 附件地址 |
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