| 用N503二次萃取法制取高纯氧化钽 |
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| 引用本文： | 万明远.用N503二次萃取法制取高纯氧化钽[J].稀有金属与硬质合金,2002,30(2):19-22. |
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| 作者姓名： | 万明远 |
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| 作者单位： | 株洲硬质合金厂钽铌事业部,湖南,株洲,412005 |
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| 摘 要： | 以HF－H2SO4－仲辛醉钽铌萃取体系的工业反钽液为原料，用N503＋煤油＋改质剂A为萃取剂，在低酸条件下部分萃取，使部分钽被萃入有机相中，与铌及杂质进一步分离，在碱性条件下反萃取得高纯钽液，经中和、洗涤、烘干、煅烧获得高纯氧化钽。
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| 关 键 词： | N503 低酸部分萃取 高纯氧化钽 |
| 文章编号： | 1004-0536(2002)02-0019-04 |
| 修稿时间： | 2001年12月27 |
Production of High-purity Ta2O5 by 2-step Extraction with N503 |
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| WAN Ming-yuan.Production of High-purity Ta2O5 by 2-step Extraction with N503[J].Rare Metals and Cemented Carbides,2002,30(2):19-22. |
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| Authors: | WAN Ming-yuan |
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| Abstract: | High-purity Ta_2O_5 is obtained by low-acid partial extraction from commercial Ta stripping solution of HF-H_2SO_4-Paraoct and Ta/Nb extraction system,using N503+Kerosene+modifier A as extractant so that part of Ta is extracted into the organic phase followed by further separation from Nb and impurity,stripping under alkali condition to obtain high-quality Ta solution,followed by neutrallization;washing;drying and calcination to result in high-purity Ta_2O_5. |
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| Keywords: | N503 low-acid partial extraction high-purity Ta_2O_5 |
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