Korea Institute of Geoscience and Mineral Resources
发明人:
Yoon Ho-Sung,Kim Chul-Joo,Chung Kyeong-Woo
申请号：
US201414286644
公开号：
US9458525(B2)
申请日:
2014.05.23
申请国别(地区):
美国
年份:
2016
代理人:
Lewis Roca Rothberger Christie LLP
摘要：
Disclosed is a method of recovering a rare earth element from oxidized scrap of permanent magnet. The method includes leaching an oxidized scrap of a permanent magnet from a sulfuric acid solution, and recovering the rare earth element after precipitating the rare earth element contained in the oxidized scrap of the permanent magnet by adding sodium sulfate into the sulfuric acid solution.
