Separation of In3+ and Fe3+ from sulfate solutions using D2EHPA in a laminar microreactor

被引：9

作者：

Li, Chuanhua ^{[1
,2
,4
]}

Jiang, Feng ^{[1
,2
,3
]}

Ju, Shaohua ^{[1
,3
,4
]}

Peng, Jinhui ^{[1
,2
,3
]}

Wei, Yaqian ^{[1
,2
,3
]}

Zhang, Libo ^{[1
,2
,3
]}

机构：

[1] Yunnan Prov Key Lab Intensificat Met, Kunming 650093, Yunnan, Peoples R China

[2] Natl Local Joint Lab Engn Applicat Microwave Ener, Kunming 650093, Yunnan, Peoples R China

[3] Kunming Univ Sci & Technol, Minist Educ, Key Lab Unconvent Met, Kunming 650093, Yunnan, Peoples R China

[4] Kunming Univ & Technol, Fac Met & Energy Engn, Kunming 650093, Yunnan, Peoples R China

来源：

CANADIAN METALLURGICAL QUARTERLY | 2015年 / 54卷 / 04期

基金：

中国国家自然科学基金;

关键词：

Laminar flow; Microfluidic; Solvent extraction; Indium; SOLVENT-EXTRACTION; MASS-TRANSFER; INDIUM; DISPERSION; LIQUID;

D O I：

10.1179/1879139515Y.0000000005

中图分类号：

TF [冶金工业];

学科分类号：

0806 ;

摘要：

A microfluidic solvent extraction method is put forward to solve the problems existing in the conventional solvent extraction of indium, such as large waste of extractant, fire hazards, etc. Experiments were performed in a series of microreactors to separate In3+ and Fe3+ from sulfate solutions using D2EHPA as the extractant. The effect of main parameters such as different contact times, microchannel sizes, interface to volume ratios and pH values on the indium extraction efficiency was investigated. The results show that the smaller the channel size, the more the beneficial diffusion and mass transfer. Specifically, in a microchannel, with a size of 100 mu m x 50 mu m x 120 mm, almost 100% extraction efficiency was reached with contact time about 0.5 s. The mean mass transfer rate can be as high as 0.291 g m(-2) s(-1), and the ratio of mean mass transfer rate of In3+ to that of Fe3+ can be as high as 29.76.

引用

页码：432 / 438

页数：7

共 15 条

[1] Solvent extraction of indium (III) by LIX 973N [J].