典型文献
Recovery of rare earth elements from permanent magnet scraps by pyrometallurgical process
文献摘要：
In order to recover valuable rare earth elements from Nd-Fe-B permanent magnet scraps,a high-temper-ature pyrometallurgical process was developed in this work.The magnet scraps were first pulverized and oxidized at 1000℃in normal atmosphere.The oxidized mixtures were then selectively reduced by carbon in the temperature range of 1400-1550℃.In this way,the rare earth ele-ments were extracted to the form of oxides,whereas Fe and B were separated to metal phase.For improving the purity of rare earth oxides,the effects of temperature and reaction time on the reduction of B2O3 in oxide phase were inves-tigated.It is found that increasing reaction temperature and extending reaction time will help the reduction of B2O3 contents in rare earth oxide phase.Almost all rare earth elements can be enriched in the oxide phase with the highest purity of 95％.
文献关键词：
中图分类号：
作者姓名：
Yu-Yang Bian;Shu-Qiang Guo;Yu-Ling Xu;Kai Tang;Xiong-Gang Lu;Wei-Zhong Ding
作者机构：
Shanghai Key Laboratory of Modern Metallurgy and Materials Processing,Shanghai University,Shanghai 200072,China;SINTEF Materials and Chemistry,7465 Trondheim,Norway
文献出处：
引用格式：
[1]Yu-Yang Bian;Shu-Qiang Guo;Yu-Ling Xu;Kai Tang;Xiong-Gang Lu;Wei-Zhong Ding-.Recovery of rare earth elements from permanent magnet scraps by pyrometallurgical process)[J].稀有金属（英文版）,2022(05):1697-1702
A类：
scraps
B类：
Recovery,rare,earth,elements,from,permanent,magnet,by,pyrometallurgical,process,In,order,recover,valuable,Nd,was,developed,this,work,were,first,pulverized,oxidized,normal,atmosphere,mixtures,then,selectively,reduced,carbon,temperature,range,way,extracted,form,oxides,whereas,separated,phase,For,improving,purity,effects,reaction,reduction,B2O3,inves,tigated,It,found,that,increasing,extending,will,help,contents,Almost,can,be,enriched,highest
AB值：
0.458737
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