Recovering heavy rare earth metals from magnet scrap

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United States of America Patent

PATENT NO 9725788
APP PUB NO 20160362766A1
SERIAL NO

14545994

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Abstract

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A method of treating rare earth metal-bearing permanent magnet scrap, waste or other material in a manner to recover the heavy rare earth metal content separately from the light rare earth metal content. The heavy rare earth metal content can be recovered either as a heavy rare earth metal-enriched iron based alloy or as a heavy rare earth metal based alloy.

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Patent Owner(s)

  • IOWA STATE UNIVERSITY RESEARCH FOUNDATION, INC.

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Inventor(s)

Inventor Name Address # of filed Patents Total Citations
Jones, Lawrence L Des Moines, US 5 22
McCallum, Ralph W Ames, US 8 7
Ott, Ryan T Ames, US 11 6

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