Recycle rare earth oxides (REO) from Nd-Fe-B magnets slurry

Bo Kai Chang, Wei-sheng Chen, Kuan Yu Shih

研究成果: Paper同行評審

摘要

During the process of slicing and polishing on the permanent magnets, additional cooling agent would mix with the slurry and become rare earth containing slurry. There is around 100 tons of Nd-Fe-B magnets slurry annually in Taiwan. The analysis of the sample shows that spent Nd-Fe-B magnets slurry contains Nd, 24.31%, Fe, 73.22%, B, 1.46%, and thus, it is valuable to recover it. The purpose of this recycling process is to build an optimal hydrometallurgy process to recycle Nd-Fe-B magnets slurry and makes it into rare earth oxides as a final product. The process includes leaching (hydrochloric acid), precipitation, solvent extraction (P507), and calcination. The final product is rare earth oxide powder, purity is over 98%, and recovery rate is over 90%.

原文English
頁面705-711
頁數7
出版狀態Published - 2015 一月 1
事件13th International Symposium on East Asian Resources Recycling Technology, EARTH 2015 - Pattaya, Thailand
持續時間: 2015 十一月 12015 十一月 4

Other

Other13th International Symposium on East Asian Resources Recycling Technology, EARTH 2015
國家/地區Thailand
城市Pattaya
期間15-11-0115-11-04

All Science Journal Classification (ASJC) codes

  • 環境科學 (全部)

指紋

深入研究「Recycle rare earth oxides (REO) from Nd-Fe-B magnets slurry」主題。共同形成了獨特的指紋。

引用此