| 简介 |
PROBLEM TO BE SOLVED : To provide a novel recovery method capable of recovering magnet powder from a rare earth bond magnet efficiently.
SOLUTION : A method of recovering magnet powder from a rare earth bond magnet comprises : a resin dissolving and removing step of removing the binder resin of a rare earth bond magnet while dissolving in a solvent; a magnet powder recovery step of subsequently recovering the magnet powder; and a heating step for heating the rare earth bond magnet prior to the resin dissolving and removing step. By performing the heating step prior to dissolving the resin, the resin is dissolved easily in the solvent, and recovery of magnet powder is facilitated. In the heating step, the rare earth bond magnet is preferably heated to the weight loss starting temperature or more and less than the maximum weight loss rate temperature.
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