Study on the recovery of gallium from phosphorus flue dust by leaching with spent sulfuric acid solution and precipitation
文献类型：期刊论文
| 作者 | Xu, Ke; Deng, Tong; Liu, Juntan; Peng, Weigong |
| 刊名 | HYDROMETALLURGY
 |
| 出版日期 | 2007-05-01 |
| 卷号 | 86期号:3-4页码:172-177 |
| 关键词 | flue dusts gallium phosphate hydrometallurgy leaching |
| ISSN号 | 0304-386X |
| 其他题名 | Hydrometallurgy |
| 中文摘要 | In this work the effect of reaction temperature, sulfuric acid concentration, liquid-to-solid ratio and Fe2+ concentration on sulfuric acid leaching of gallium from phosphorus flue dust was studied. The results showed that gallium extraction increased with the increase of temperature, sulfuric acid concentration and liquid-to-solid ratio. Fe2+ concentration did not significantly affect the recovery of gallium. The acid-soluble gallium could be completely extracted with simulated spent acid containing 20% sulfuric acid and 0 to 50 g/L Fe2+ at temperature of 80 degrees C, and liquid-to-solid ratio of 10:1. The effect of phosphate concentration, reaction temperature and pH on the precipitation of gallium and ferrous iron was also studied in order to determine the optimum conditions for the recovery of gallium from simulated spent acid leach solution. It was found that under optimum precipitation conditions, when all gallium precipitated from the simulated spent acid leach solution containing 31 g/L ferrous iron and 0.1 g/L gallium, the precipitation of iron was less than 2%, the ratio of iron-to-gallium decreased from 3 10:1 in the leach solution to 5:1 in the precipitate. Gallium was therefore concentrated in the precipitate. (C) 2007 Elsevier B.V. All rights reserved. |
| 英文摘要 | In this work the effect of reaction temperature, sulfuric acid concentration, liquid-to-solid ratio and Fe2+ concentration on sulfuric acid leaching of gallium from phosphorus flue dust was studied. The results showed that gallium extraction increased with the increase of temperature, sulfuric acid concentration and liquid-to-solid ratio. Fe2+ concentration did not significantly affect the recovery of gallium. The acid-soluble gallium could be completely extracted with simulated spent acid containing 20% sulfuric acid and 0 to 50 g/L Fe2+ at temperature of 80 degrees C, and liquid-to-solid ratio of 10:1. The effect of phosphate concentration, reaction temperature and pH on the precipitation of gallium and ferrous iron was also studied in order to determine the optimum conditions for the recovery of gallium from simulated spent acid leach solution. It was found that under optimum precipitation conditions, when all gallium precipitated from the simulated spent acid leach solution containing 31 g/L ferrous iron and 0.1 g/L gallium, the precipitation of iron was less than 2%, the ratio of iron-to-gallium decreased from 3 10:1 in the leach solution to 5:1 in the precipitate. Gallium was therefore concentrated in the precipitate. (C) 2007 Elsevier B.V. All rights reserved. |
| WOS标题词 | Science & Technology ; Technology |
| 类目[WOS] | Metallurgy & Metallurgical Engineering |
| 研究领域[WOS] | Metallurgy & Metallurgical Engineering |
| 关键词[WOS] | EXTRACTION |
| 收录类别 | SCI |
| 原文出处 | |
| 语种 | 英语 |
| WOS记录号 | WOS:000246188300006 |
| 公开日期 | 2013-10-15 |
| 版本 | 出版稿 |
| 源URL | [http://ir.ipe.ac.cn/handle/122111/3487]  |
| 专题 | 过程工程研究所_研究所（批量导入） |
| 作者单位 | 1.Zhengzhou Inst Aeronaut Ind Management, Zhengzhou 450015, Peoples R China 2.Chinese Acad Sci, Inst Proc Engn, Beijing 100080, Peoples R China |
| 推荐引用方式 GB/T 7714 | Xu, Ke,Deng, Tong,Liu, Juntan,et al. Study on the recovery of gallium from phosphorus flue dust by leaching with spent sulfuric acid solution and precipitation[J]. HYDROMETALLURGY,2007,86(3-4):172-177. |
| APA | Xu, Ke,Deng, Tong,Liu, Juntan,&Peng, Weigong.(2007).Study on the recovery of gallium from phosphorus flue dust by leaching with spent sulfuric acid solution and precipitation.HYDROMETALLURGY,86(3-4),172-177. |
| MLA | Xu, Ke,et al."Study on the recovery of gallium from phosphorus flue dust by leaching with spent sulfuric acid solution and precipitation".HYDROMETALLURGY 86.3-4(2007):172-177. |
入库方式： OAI收割
来源：过程工程研究所
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