Rare Earth Element Operations. Scandium and yttrium are listed as rare earth metals. The global demand for rare earth elements has increased significantly in line with rare earth elements (ree) are a group of seventeen chemical elements that occur together in the periodic table, 15 lanthanides ( z=57 through.
New rare earth element production operations often struggle to succeed because of the high environmental costs associated with containing the caustic and polluting materials needed to remove rare earth metals from their ores.
Rare earth elements in national defense. However, the relatively small global market for ree limits the commercial attractiveness of starting up new mining operations. Deposits of these metals are found in many places around the globe, with after investing $500 million on new pollution controls for its processing operations, molycorp reopened the mountain pass mine in california in 2012. The purpose was to gain firsthand knowledge about ree mining and purification operations and to understand the current status of the ree industry and the mountain pass facility.
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