Patent ID: 9657367
Date: 2017-05-23
CPC Classifications: B22F,C22B,H01F,Y02P,Y02W

Claim:
1. A method for recycling a carbon-containing R—Fe—B based permanent magnet alloy, comprising the steps of: removing carbon in the carbon-containing R—Fe—B based permanent magnet alloy by subjecting the carbon-containing R—Fe—B based permanent magnet alloy to a Hydrogenation-Disproportionation-Desorption-Recombination treatment, wherein the carbon-containing R—Fe—B based permanent magnet alloy contains a carbon content of 0.04 mass % or more, and melting by heating an R—Fe—B based permanent magnet alloy from which carbon was removed, wherein a carbon content of the R—Fe—B based permanent magnet alloy from which carbon was removed is 0.03 mass % or less.