| 钙热还原及熔盐萃取联合法一次性制备低氧低氟金属镝 |
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| 引用本文： | 云月厚,黄焦宏,刘文生,邰显康,李国栋.钙热还原及熔盐萃取联合法一次性制备低氧低氟金属镝[J].稀土,2006,27(3):91-93. |
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| 作者姓名： | 云月厚 黄焦宏 刘文生 邰显康 李国栋 |
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| 作者单位： | 1. 内蒙古大学,物理系,内蒙古,呼和浩特,010021
2. 包头稀土研究院,内蒙古,包头,014030 |
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| 摘 要： | 对低氧低氟金属镝的制备工艺及机理进行研究,结果表明:采用氟化氢铵处理后,再用氟化氢气体氟化,并进行脱氟处理的干法氟化工艺,可得到高纯氟化镝,氟化率达99.9%;采用钙热还原及熔盐萃取联合法一次性制备工艺,可有效降低金属镝中的氧、氟含量,制备的金属镝纯度大于99.9%。
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| 关 键 词： | 低氧低氟金属镝 干法氟化 钙热还原 熔盐萃取 一次性制备 |
| 文章编号： | 1004-0277(2006)03-0091-03 |
| 修稿时间： | 2004年11月17 |
One Time to Produce Low Oxygen and Low Fluorine Dysprosium Metal by the Combining Method of Calcium Reducing Agent and Fused-Salt Extraction |
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| YUN Yue-hou,HUANG Jiao-hong,LIU Wen-sheng,TAI Xian-kang,LI Guo-dong.One Time to Produce Low Oxygen and Low Fluorine Dysprosium Metal by the Combining Method of Calcium Reducing Agent and Fused-Salt Extraction[J].Chinese Rare Earths,2006,27(3):91-93. |
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| Authors: | YUN Yue-hou HUANG Jiao-hong LIU Wen-sheng TAI Xian-kang LI Guo-dong |
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| Abstract: | In this paper,firstly,Dy_(2)O_(3) acted by NH_(4)HF_(2) change to be porous.Secondly,Dy_(2)O_(3)is fluorinated by HF gas and defluorination process is used.During fused-salt extraction,one time to produce low oxygen and low fluorine dysprosium metal by the combining method of calcium reducing agent and fused-salt extractionare used.Results show that fluorination rate of Dy_(2)O_(3)reaches 99.9%,oxygen and fluorine of content reduced in the dysprosium metal can get a very low level,low oxygen and low fluorine dysprosium metal is prepared,and purity of dysprosium metal prepared is more than 99.9%. |
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| Keywords: | low oxygen and low fluorine dysprosium metal dry fluorination process calcium reduction fused-salt extraction one time to produce |
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