| 简介 |
PROBLEM TO BE SOLVED : To provide a method for recovering a rare earth element from scraps of a motor using a rare earth magnet and the like in which a rare earth element is favorably separated from iron and the rare earth element is efficiently separated and recovered.
SOLUTION : The method for separating and recovering a rare earth element is a method for separating and recovering a rare earth element from a raw material including a rare earth magnet and an iron material, which comprises melting the raw material in the coexistence of a metal silicon source and an alkali silicate in an inert atmosphere to suppress oxidation of iron, forming an Fe-Si molten alloy while on the other hand selectively oxidizing a rare earth element to form a molten slag, and separating and recovering the molten slag from the Fe-Si molten alloy.
SELECTED DRAWING : Figure 1
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