Name: Crs Report for Congress: Rare Earth Elements: The Global Supply Chain (en Inglés)
Price: 31730.00 CLP
Availability: InStock
Author: Humphries, Marc ; Congressional Research Service the Libr
ISBN: 9781294274094

portada Crs Report for Congress: Rare Earth Elements: The Global Supply Chain (en Inglés)

Formato

Libro Físico

Autor

Congressional Research Service the Libr

Marc Humphries

Editorial

Bibliogov

Idioma

Inglés

N° páginas

Encuadernación

Tapa Blanda

Dimensiones

24.6 x 18.9 x 0.2 cm

Peso

0.08 kg.

ISBN13

9781294274094

Categorías

Política y gobierno

Crs Report for Congress: Rare Earth Elements: The Global Supply Chain (en Inglés)

Congressional Research Service the Libr (Autor) · Marc Humphries (Autor) · Bibliogov · Tapa Blanda

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Reseña del libro "Crs Report for Congress: Rare Earth Elements: The Global Supply Chain (en Inglés)"

The concentration of production of rare earth elements (REEs) outside the United States raises the important issue of supply vulnerability. REEs are used for new energy technologies and national security applications. Is the United States vulnerable to supply disruptions of REEs? Are these elements essential to U.S. national security and economic well-being? There are 17 rare earth elements (REEs), 15 within the chemical group called lanthanides, plus yttrium and scandium. The lanthanides consist of the following: lanthanum, cerium, praseodymium, neodymium, promethium, samarium, europium, gadolinium, terbium, dysprosium, holmium, erbium, thulium, ytterbium, and lutetium. Rare earths are moderately abundant in the earth's crust, some even more abundant than copper, lead, gold, and platinum. While more abundant than many other minerals, REEs are not concentrated enough to make them easily exploitable economically. The United States was once self-reliant in domestically produced REEs, but over the past 15 years has become 100% reliant on imports, primarily from China, because of lower-cost operations.