|About this Abstract
||2016 TMS Annual Meeting & Exhibition
||Rare Metal Extraction & Processing Symposium
||Recovery and Purification of In3+ from Zinc Hydrometallurgical Process in a T-junction Microchannel
||Chuanhua Li, Feng Jiang, Shaohua Ju, Jinhui Peng, Libo Zhang
|On-Site Speaker (Planned)
A T-junction microchannel is proposed to overcome the existing problems in conventional solvent extraction of indium from zinc hydrometallurgical process. Experiments were performed to separate In3+, Fe3+ and Zn2+ from sulfate solutions using Di-(2-ethylhexyl)phosphoric acid (D2EHPA) as the extractant. The effect of parameters such as pH, microchannel size and contact time on the extraction behavior of In3+, Fe3+ and Zn2+ was investigated. At contact time of 2.52 s and initial solution pH of 0.4, the extraction efficiency of In3+, Fe3+ and Zn2+ was 99.13%, 8.31% and 2.45%, respectively and separation factor of βIn3+/Fe3+ and βIn3+/Zn2+ were almost 1229.54 and 4864.98, respectively. Then, the loaded organic phase was stripped in T-junction microchannel. At contact time of 33.6 s, 99.64% of stripping efficiency of In3+ and stripping equilibrium were reached, while concentration of Fe3+ and Zn2+ was lower than 0.01 g/L with good separation of In3+ from Fe3+ and Zn2+.
||Planned: A print-only volume