Rare Earth Elements A Review of Production Processing
2 Introduction to the Rare Earth Elements • 15 lanthanides • La through Lu Pm is rare in nature mostly human made • Plus scandium and yttrium are often included • Rare Earth Minerals Oxides and/or Metals 5/21/2022 Environmental Protection Agency 3 Powders of six rare earth elements oxides Photograph by Peggy Greb Agricultural Research Center of …