Development of Chemical Process for Recovering High-quality Rare-earth Oxides from HV Motor Magnets

Paper #:
  • 2017-01-1278

Published:
  • 2017-03-28
Author(s):
Pages:
8
Abstract:
In the automobile industry, interest in the prevention of global warming has always been high. The development of eco cars (HV, EV etc.), aimed at reducing CO2 emissions during operation, has been progressing. In the announcement of its "Toyota Environmental Challenge 2050", Toyota declared its commitment to creating a future in which people, cars, and nature coexist in harmony. In this declaration, Toyota committed to reducing CO2 emissions not only during operation but also over the entire life cycle of vehicles, and to using resources effectively based on a 4 R’s approach (refuse, reduce, reuse, and recycle). Although eco cars decrease CO2 emissions during operation, most of them increase CO2 emissions during manufacturing. For example, the rare-earths (Nd, Dy etc.) used in the magnets of driving motors are extracted through processes that produce a significant amount of CO2 emissions. The common process for recycling the rare-earths used in magnets can recover high-purity rare-earths by electrolysis. However, this process is costly and also produces a significant amount of CO2. Toyota has developed a chemical recycling process for producing high-quality rare-earth oxides that is economical and reduces CO2 emission during material production by 80% without the use of electrolytic refining. This paper describes this chemical recycling process for rare earth components and, in addition, introduces an energy-saving, vehicle-to-vehicle resource recycling flow.
Also in:
  • SAE International Journal of Materials and Manufacturing - V126-5EJ
  • SAE International Journal of Materials and Manufacturing - V126-5
Sector:
Access
Now
SAE MOBILUS Subscriber? You may already have access.
Buy
Attention: This item is not yet published. Pre-Order to be notified, via email, when it becomes available.
Select
Price
List
Download
$22.00
Mail
$22.00
Members save up to 36% off list price.
Share
HTML for Linking to Page
Page URL

Related Items

Technical Paper / Journal Article
2012-04-16
Article
2016-03-01
Technical Paper / Journal Article
2005-10-23
Technical Paper / Journal Article
2008-10-07
Technical Paper / Journal Article
2005-11-22
Technical Paper / Journal Article
2013-03-25
Article
2016-03-04