Analysis of impurities of Nd-Fe-B magnet by nuclear method and recovery by precipitation chemical of Nd and Pr rare earths
Joint Authors
Cheraitia, K.
Lounis, A.
Mehenni, M.
Source
Journal of New Technology and Materials
Issue
Vol. 7, Issue 1 (30 Jun. 2017), pp.9-17, 9 p.
Publisher
Larbi Ben M'hidi Oum el-Bouaghi University
Publication Date
2017-06-30
Country of Publication
Algeria
No. of Pages
9
Main Subjects
Information Technology and Computer Science
Abstract EN
The products of the new information and communication technologies (NTIC), whose life often not exceed three years, became consumables to the computer image and other waste that contains neodymium and praseodymium (rare earths).
In this field of analysis of impurities, treatment and recycling of waste, we propose the recovery of elements such as neodymium and praseodymium, from the super-magnet Nd-Fe-B, Our study provides a simple process and inexpensive.
The implementation scheme of our project consists in a first step in developing a plan of experience that has been made specifically to perform the optimization of operating conditions of the precipitation process.
This experimental design was inspired by a statistical technique advanced design of experiments known factorial design.
The flow sheet processing of recovery begins by embrittlement in liquid nitrogen (-196C) followed by dissolution in an acidic solution and precipitation of Nd as neodymium oxalate.
For characterization we used the following techniques: The neutron radiography, the neutron activation analysis (NAA), the scanning electron microscope coupled with EDX and XRD.
The counting of γ spectrum shows that the purity of the precipitate is higher than 99%.
Then, the thermal decomposition transforms this powder to neodymium oxide.
After the reduction we obtain pure neodymium.
American Psychological Association (APA)
Cheraitia, K.& Lounis, A.& Mehenni, M.. 2017. Analysis of impurities of Nd-Fe-B magnet by nuclear method and recovery by precipitation chemical of Nd and Pr rare earths. Journal of New Technology and Materials،Vol. 7, no. 1, pp.9-17.
https://search.emarefa.net/detail/BIM-785550
Modern Language Association (MLA)
Cheraitia, K.…[et al.]. Analysis of impurities of Nd-Fe-B magnet by nuclear method and recovery by precipitation chemical of Nd and Pr rare earths. Journal of New Technology and Materials Vol. 7, no. 1 (2017), pp.9-17.
https://search.emarefa.net/detail/BIM-785550
American Medical Association (AMA)
Cheraitia, K.& Lounis, A.& Mehenni, M.. Analysis of impurities of Nd-Fe-B magnet by nuclear method and recovery by precipitation chemical of Nd and Pr rare earths. Journal of New Technology and Materials. 2017. Vol. 7, no. 1, pp.9-17.
https://search.emarefa.net/detail/BIM-785550
Data Type
Journal Articles
Language
English
Notes
Includes bibliographical references : p. 17
Record ID
BIM-785550