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投稿时间:2011-12-22 修订日期:2011-12-23 录用日期:2011-12-23 网络发布日期:2012-06-26
投稿时间:2011-12-22 修订日期:2011-12-23 录用日期:2011-12-23 网络发布日期:2012-06-26
中文摘要: 在熔盐中用钠热还原法直接还原NbCl5制备铌粉。采用XRD、FESEM和EDS对产品粉末的结构、形貌和成分进行检测。结果表明,在LiCl-10.0%NaCl-36.0%KCl(摩尔百分数)、LiCl-44.2%KCl-5.3% CaCl2 和LiCl-11.6%KCl-36.1% CaCl2的熔盐中均可获得纯纳米铌粉,熔盐原位750 ℃热处理可以降低产品氧含量。
Abstract:Niobium powder was prepared by sodiothermic reduction process from NbCl5 in different molten salts. The phases, morphology and element of the niobium powder were analyzed by XRD, FESEM and EDS. The results show that fine and uniform niobium nanometer powder was successfully obtained in the molten salt systems of LiCl-10.0%NaCl-36.0%KCl(mole percent), LiCl-44.2%KCl-5.3% CaCl2 and LiCl-11.6%KCl-36.1% CaCl2, and the oxygen content of the niobium powder decreases after in situ heat treatment in molten salts at 750 ℃.
keywords: sodiothermic reduction niobium powder NbCl5 molten salt
文章编号: 中图分类号: 文献标志码:
基金项目:国家自然科学基金项目(51004008,21071014)
| 作者 | 单位 | |
| 王 娜* | 北京科技大学 冶金与生态工程学院 | wnawjnw@126.com |
| 朱鸿民 | 北京科技大学 冶金与生态工程学院 |
| Author Name | Affiliation | |
| Wang Na | School of Metallurgical and Ecological Engineering,University of Science and Technology Beijing,Beijing,100083 | wnawjnw@126.com |
| Zhu Hongmin |
引用文本:
王 娜,朱鸿民.熔盐钠热还原NbCl5制备金属铌粉[J].有色金属(冶炼部分),2012(7):44-47.
Wang Na,Zhu Hongmin.Preparation of Niobium Powder by Sodiothermic Reduction of NbCl5 in Molten Salts[J].Nonferrous Metals (Extractive Metallurgy),2012(7):44-47.
王 娜,朱鸿民.熔盐钠热还原NbCl5制备金属铌粉[J].有色金属(冶炼部分),2012(7):44-47.
Wang Na,Zhu Hongmin.Preparation of Niobium Powder by Sodiothermic Reduction of NbCl5 in Molten Salts[J].Nonferrous Metals (Extractive Metallurgy),2012(7):44-47.

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