|About this Abstract
||2017 TMS Annual Meeting & Exhibition
||Applications of Process Engineering Principles in Materials Processing, Energy and Environmental Technologies: An EPD Symposium in Honor of Professor Ramana G. Reddy
||Selective Sulfation Roasting of Rare Earths from NdFeB Magnet Scrap
||Brett Carlson, Patrick Taylor
|On-Site Speaker (Planned)
Rare earth magnets play an increasingly important role in high end technology, and the manufacture of rare earth magnets, such as the NdFeB type, consume a large amount of the rare earths produced. Recycling of this material could provide an important domestic source for these materials. A selective sulfation roast has been developed; the central principle of which is to take advantage of the differing stabilities of the rare earth sulfates as compared to those of iron under a reactive atmosphere. To determine the kinetics of this reaction, a thermal gravimetric apparatus is constructed and the sulfation of iron oxide and neodymium oxide are studied under different experimental conditions. This data is used to determine parameters in modeling the system. This process is shown to effectively separate the high value rare earth components from iron, the major component of this waste stream.
||Planned: Stand-alone book in which only your symposium’s papers would appear (indicate title in comments section below)