| 从硫酸盐溶液中协同萃取镓 |
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| 引用本文： | 邓彤,黄丽娟,傅丽.从硫酸盐溶液中协同萃取镓[J].中国化学工程学报,2002,10(1):112-115. |
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| 作者姓名： | 邓彤 黄丽娟 傅丽 |
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| 作者单位： | Institute of Process Engineering formerly Institute of Chemical Metallurgy, Chinese Academy ;of Sciences, Beijing 100080, China |
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| 摘 要： | A novel extractant mixture, di-2-ethylhexyl phosphate (DEHPA) plus HX, was proposed and tested for recovering gallium from sulfate solution. It was found that the extraction capacity of DEPHA for gallium from sulfate solution could be enhanced significantly due to the synergistic effect of acidic extractant HX. Gallium extraction is negligible below pH 0 and highly sensitive to pH of aqueous phase in the range from 0 to 1, and satisfactory extraction can be gained at pH＞1. More than 96% Ga extraction was obtained using 15% DEHPA plus 2% HX. Although Fe (Ⅲ) was found to be extracted preferentially to Ga (Ⅲ), effective extraction of Ga (Ⅲ) was possible by reducing ferric to the ferrous state prior to extraction. A loaded organic phase containing 0.48g. L-1 Ga could be produced from solution of 0.12g@L-1 Ga at A/O ratio of 4: 1 via three mixer-settler operation stages.Gallium was stripped quantitatively from the loaded organic phase with 1.5 mol@L-1 of sulfuric acid.
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| 关 键 词： | 协同萃取 镓 硫酸盐溶液 |
| 修稿时间： | |
Synergistic Extraction of Gallium from Sulfate Solution |
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| DENG Tong,HUANG Lijuan,FU Li.Synergistic Extraction of Gallium from Sulfate Solution[J].Chinese Journal of Chemical Engineering,2002,10(1):112-115. |
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| Authors: | DENG Tong HUANG Lijuan FU Li |
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| Affiliation: | Institute of Process Engineering formerly Institute of Chemical Metallurgy, Chinese Academy of Sciences, Beijing 100080, China |
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| Abstract: | A novel extractant mixture, di-2-ethylhexyl phosphate (DEHPA) plus HX, was proposed and |
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| Keywords: | gallium synergistic extraction DEHPA sulfate solution |
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