Rare Earth Elements: A Review of Production, Processing ...
Rare Earth Elements: A Review of Production, Processing ...
Rare Earth Elements: A Review of Production, Processing ...
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<strong>Rare</strong> <strong>Earth</strong> <strong>Elements</strong> <strong>Review</strong> Section 2 – Introduction to <strong>Rare</strong> <strong>Earth</strong> <strong>Elements</strong><br />
Figure 2-4. Global production <strong>of</strong> rare earth oxides (Du and Graedel, 2011).<br />
Annual global production <strong>of</strong> REEs totaled about 124,000 tons in 2008, according to a recent report by the<br />
U.S. Congressional Research Service (Humphries, 2010). According to this same report, analysis <strong>of</strong> the<br />
future supply and demand for each <strong>of</strong> the REEs indicates that, by 2014, global demand could exceed<br />
200,000 tons per year, which would exceed current production by over 75,000 tons per year. Additional<br />
analysis by others indicates the high likelihood <strong>of</strong> shortages <strong>of</strong> neodymium, dysprosium, terbium, and<br />
praseodymium and the potential for shortages <strong>of</strong> lanthanum, yttrium, and, europium by 2014 (Schuler et<br />
al., 2011). This information, combined with the data shown in Figure 2-3, indicates that the uses most<br />
likely to be impacted by future shortages are magnets for use in computers, audio systems, wind turbines,<br />
and automobiles; motors/generators; batteries; metallurgy; and catalysts. The critical nature <strong>of</strong> these uses<br />
is driving the push for increased mining, expanded recycling and research into alternatives, and changes<br />
in U.S. and international policy.<br />
In 2008, the United States consumed 7,410 metric tons <strong>of</strong> REEs (U.S. DOI/USGS, 2010). Currently, this<br />
demand is met mainly through imports from China, industry inventories, and stockpiles. However, as<br />
early as 2012, U.S. production may be resumed at the Mountain Pass Mine, which is projecting<br />
production <strong>of</strong> 18,000 tons in 2012 and up to 40,000 tons per year in following years. The status and<br />
critical issues facing this mine, as well as other potential U.S. mines, are presented in Table 2-4. It is<br />
reported that if the new mines under development are able to meet their projected production levels,<br />
world-wide demand for REEs will be met from these new sources (Long, 2011).<br />
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