Method for recycling rare earth sintered magnet

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United States of America

PATENT NO 12146225
SERIAL NO

17859441

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Abstract

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A method for recycling a rare earth magnet is described. The rare earth magnet has a film containing Ni on the surface thereof, and the method involves immersing the rare earth magnet in a stripping solution containing a derivative of nitrobenzene, ethylenediamine, and ammonia. This strips the Ni on the surface of the rare earth magnet without deteriorating the characteristics of the rare earth magnet, thereby improving its product yield.

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Patent Owner(s)

Patent OwnerAddress
SHIN-ETSU CHEMICAL CO LTDTOKYO 100-0004

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Inventor(s)

Inventor Name Address # of filed Patents Total Citations
Akada, Kazuhito Echizen, JP 15 27
Hayashi, Yoshiyuki Fukui, JP 84 1140
Kuribara, Yuta Makati, PH 5 0
Watanabe, Ko Fukui, JP 26 659

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