Effect of Scrap Size on Extraction of Neodymium from Nd-Fe-B Magnet Scrap by Liquid Metal Extraction

Title:Effect of Scrap Size on Extraction of Neodymium from Nd-Fe-B Magnet Scrap by Liquid Metal Extraction

Volume: 10 Issue: 1

Author(s): Hyun Woong Na, Yong Hwan Kim, Hyeon Taek Son, In Ho Jung, Han Shin Choi and Tae Bum Kim

Affiliation:

Keywords: Extrusion rate, liquid metal extraction, magnesium, Nd-Fe-B magnet, neodymium, .

Abstract: The effects of Nd-Fe-B magnet scrap size on extraction behavior were investigated by liquid metal extraction using molten Mg. The magnet scraps with Mg were placed into a stainless steel crucible and then heated to 1,073K for 10 to 50min. The amount of extracted Nd after liquid metal extraction process was increased with an increasing with holding time and scrap size, and the maximum contents of Nd in Mg were observed to be about 24.2 wt.% in the conditions of the 5mm sized scrap heated for 50min. It was revealed that Nd oxides existing in the magnet scraps prevent the dissolution of Nd into Mg.

Cite this article as:

Na Hyun Woong, Kim Yong Hwan, Taek Son Hyeon, Ho Jung In, Shin Choi Han and Bum Kim Tae, Effect of Scrap Size on Extraction of Neodymium from Nd-Fe-B Magnet Scrap by Liquid Metal Extraction, Current Nanoscience 2014; 10 (1) . https://dx.doi.org/10.2174/1573413709666131109002236