Rare earth recovery from phosphor material and associated method
A method for recovering at least one rare earth element from a phosphor is presented. The method includes a halogenation step (a) and a reduction step (b). The phosphor is first halogenated in a molten salt to convert at least one rare earth constituent contained therein to a soluble rare earth halide. Then, the rare earth halide in the molten salt can be reduced, to convert the rare earth halide to a rare earth element in its elemental state. A method for individually recovering multiple rare earth elements from a phosphor is also presented.
General Electric Company
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C25C C22B C22B C25B Y02P
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Alok Mani Prasanth Kumar Satya Kishore Karthick Vilapakkam
Srivastava Nammalwar Manepalli Gourishankar