Leaching of a low-grade niobium-tantalum ore by highly concentrated caustic potash solution
文献类型：期刊论文
| 作者 | Zhou, HM; Zheng, SL; Zhang, Y |
| 刊名 | HYDROMETALLURGY
 |
| 出版日期 | 2005-11-01 |
| 卷号 | 80期号:1-2页码:83-89 |
| 关键词 | leaching KOH niobium-tantalum ore highly concentrated medium |
| ISSN号 | 0304-386X |
| 其他题名 | Hydrometallurgy |
| 中文摘要 | The recovery of niobium and tantalum from a low-grade niobium-tantalum ore by using highly concentrated caustic potash as an alternative to hydrofluoric acid has been investigated. Experiments on the leaching behavior of niobium and tantalum, as well as other associated impurities, such as titanium, iron, manganese, silicon, and aluminum were carried out. The effect of various parameters including leaching temperature, KOH concentration, leaching time, alkali-to-ore mass ratio and particle size on the agitation leaching was examined. When finely ground ore (-61 mu m) reacted with KOH solution (84 wt.%) in a mass ratio of alkali-to-ore of 7:1 at 300 degrees C for 60 min, almost complete extraction of both niobium and tantalum was achieved while the extraction of titanium was 85% and the extraction of other impurities in the ore was less than 35%. (c) 2005 Elsevier B.V. All rights reserved. |
| 英文摘要 | The recovery of niobium and tantalum from a low-grade niobium-tantalum ore by using highly concentrated caustic potash as an alternative to hydrofluoric acid has been investigated. Experiments on the leaching behavior of niobium and tantalum, as well as other associated impurities, such as titanium, iron, manganese, silicon, and aluminum were carried out. The effect of various parameters including leaching temperature, KOH concentration, leaching time, alkali-to-ore mass ratio and particle size on the agitation leaching was examined. When finely ground ore (-61 mu m) reacted with KOH solution (84 wt.%) in a mass ratio of alkali-to-ore of 7:1 at 300 degrees C for 60 min, almost complete extraction of both niobium and tantalum was achieved while the extraction of titanium was 85% and the extraction of other impurities in the ore was less than 35%. (c) 2005 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 |
| 收录类别 | SCI |
| 原文出处 | |
| 语种 | 英语 |
| WOS记录号 | WOS:000233268600010 |
| 公开日期 | 2013-10-25 |
| 版本 | 出版稿 |
| 源URL | [http://ir.ipe.ac.cn/handle/122111/4185]  |
| 专题 | 过程工程研究所_研究所（批量导入） |
| 作者单位 | 1.Cent S Univ, Sch Mat Sci & Engn, Changsha 410083, Hunan, Peoples R China 2.Chinese Acad Sci, Inst Proc Engn, Beijing 100080, Peoples R China |
| 推荐引用方式 GB/T 7714 | Zhou, HM,Zheng, SL,Zhang, Y. Leaching of a low-grade niobium-tantalum ore by highly concentrated caustic potash solution[J]. HYDROMETALLURGY,2005,80(1-2):83-89. |
| APA | Zhou, HM,Zheng, SL,&Zhang, Y.(2005).Leaching of a low-grade niobium-tantalum ore by highly concentrated caustic potash solution.HYDROMETALLURGY,80(1-2),83-89. |
| MLA | Zhou, HM,et al."Leaching of a low-grade niobium-tantalum ore by highly concentrated caustic potash solution".HYDROMETALLURGY 80.1-2(2005):83-89. |
入库方式： OAI收割
来源：过程工程研究所
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