Critical materials for the energy transition: Rare earth …

EXECUTIVE SUMMARY. The rare earths are of a group of 17 chemical elements, several of which are critical for the energy transition. Neodymium, praseodymium, dysprosium …

Rare Earth Elements

name 'rare earth elements' come to be associated solely with the specific set of elements it denotes today. In fact, in terms of their overall abundance in the Earth's crust, the REE are not particularly rare. On average, as a proportion of the Earth's continental crust, Cerium (Ce) is the most abundant, at 43 parts per million (ppm),

Rare Earth Interferences on Arsenic and Selenium

Rare Earth Element 75As Uncorr 78Se Uncorr 1000 ppb Eu 0.171 -0.050 1000 ppb Nd 44.009 -0.075 1000 ppb Sm 29.079 -0.074 1000 ppb Gd 0.097 618.118 1000 ppb Dy 0.074 1.534 Initial Look at Rare Earth Element Interference on As and Se in ICP-MS

Structure of Rare-earth/Alkali Halide Complexes

Vapour complex formation of rare-earth halides with alkali halides strongly increases the volatility of these compounds. We evaluate the structure taken by such complexes having the chemical formulas MRX4, M2RX5 and M3RX6, where X = F or Cl and typically M = Li or Na and R = La. The roles played by the two types of metal atom is …

Rare Earth Elements

The rare earth elements (REE) are a group of seventeen metallic elements - the fifteen lanthanides, with atomic numbers 57 (lanthanum, La) to 71 (lutetium, Lu), together with …

Critical Materials Rare Earths Supply Chain: A Situational …

U.S.12 REEs are not "rare" in the sense that they are commonly found in the Gaps in the domestic supply chain are shown in red. Earth's crust. However, economic, mineable …

Minerals | Free Full-Text | Global Potential of Rare Earth …

1. Introduction. Rare earth elements (REE) were first discovered in 1788. However, global annual REE production and consumption was less than 5000 metric …

Handbook of Rare Earth Elements

The Handbook of Rare Earth Elements focuses on the essential role of modern instrumental analytics in the recycling, purification and analysis of rare earth elements. Due to their numerous applications, e.g. in novel magnetic materials for computer hardware, mobile phones and displays, rare earth elements have become a strategic …

Global rare earth element occurrence database

This spatial database "usgs_Global_REE.gdb" was created for use in a geographic information system (GIS) to support research on global rare earth deposits and occurrences by the U.S. Geological Survey. This inventory documents the geologic occurrence of rare earths, including mineralogy, type of deposit or occurrence, host …

China's Rare Earth Elements Industry: What Can the …

Rare earth elements can be found in a variety of minerals, but the most abundant rare earth elements are found primarily in bastnaesite and monazite. Bastnaesite typically contains light rare earths and a small amount of the heavies, while monazite also contains mostly the light, but the fraction of the heavy rare earths is two to three times ...

2019 Rare Earths Rarely So Strategic

July 10, 2019. 0. BY Terry A. Francis, Director of Technology & Senior Analyst, TECHCET. Global supply-chains are being disrupted by the U.S./China trade wars, driving increased awareness of the strategic importance of rare-earth elements (REE). China currently controls the global market for these critical materials with over 79% share of the ...

The rare earth metal hydride tellurides REHTe (RE=Y, La–Nd, …

The synthesis and crystal structure of a series of rare earth metal hydride tellurides with the composition RE HTe ( RE = Y, La–Nd, Gd–Er) is reported. These compounds have been obtained by the reaction of rare earth metal dihydrides ( RE H 2 ) with elemental tellurium in sealed tantalum capsules at T = 700°C using cesium chloride (CsCl) as fluxing agent, …

Magnetocaloric Properties of Rare-Earth-Free

The structure of the HEA is orthorhombic in the Pnma space group. Arrott plots indicate that the ferromagnetic-paramagnetic phase transition is of second order. The maximum magnetic entropy change is 2.49 J·kg -1 ·K -1, among the highest reported for alloys that do not contain rare earth elements.

Understanding Persistent Luminescence: Rare-Earth- and Eu

Similar to many other Eu 2+,RE 3+ -co-doped persistent luminescence materials, for Sr 2 MgSi 2 O 7 :Eu 2+,RE 3+ the initial intensity and duration of persistent luminescence was also found to depend critically on the rare-earth (RE) co-doping. An enhancement of 1 - 2 orders of magnitude in these properties could be obtained by Dy …

Advanced vapor-phase doping method using chelate …

Chelate evaporation method for rare earth and aluminum precursor delivery was used for "insitu" MCVD fabrication of large core rare earth-doped optical fiber preforms. Vaporization conditions and device design are discussed. Preform results are analyzed.

Criticality of the Rare Earth Elements

Recent constraints on supplies of the rare earth elements (REEs) have led to concerns about their long-term availability as well as the consequences that shortages would pose for modern technology. T...

Rare Earth Elements and Their Minerals

This book describes the recent evolution of rare earth elements and their mineralogy, both natural and synthetic analogues. Authors review and document rare earth element chemistry in the …

Rare earth elements facts

Rare earth elements facts. Rare earth elements (REE) are a group of 17 elements, including the 15 elements of the lanthanide series on the periodic table of elements together with the transition metals scandium and yttrium. The latter two elements exhibit similar properties to the lanthanides and are found in the same ore bodies.

Rare Earth Elements: Overview of Mining, …

Rare earths are used in the renewable energy technologies such as wind turbines, batteries, catalysts and electric cars. Current mining, processing and sustainability aspects have been described in this paper. …

Myanmar's environment hit by rare earth mining boom

Myanmar alone accounted for about 70% of China's rare earth import value. According to Resource Trade, Myanmar earned about US$623 million in total from exporting rare earth elements to China from 2011 to 2020. The annual export value increased from $88,500 to $388 million in the same period of time. The production hiked …

Rare earth metal recycling | IEEE Conference Publication

REs consist of the fourteen lanthanide group metals, Scandium, and Yttrium and are critical for advanced technologies, green technologies, and defense technologies. Nearly 200 minerals contain >;0.01% RE metals but only a dozen have high enough quantities to be economically extractable. In this article, we will review the need for rare …

All Info

All Info for S.3631 - 118th Congress (2023-2024): A bill to require reports on critical mineral and rare earth element resources around the world and a strategy for the development of advanced mining, refining, separation, and processing technologies. ... Related Documents; Senate Energy and Natural Resources: 01/18/2024: Referred to: Related ...

Rare Earth Research, Production, Policy, and Future …

The Rare Earth Magnets in Russia: Production, Market and Forecast, 2015, analyzed the future market and forecasts for rare earth magnets (by 2020) in Russia, and provided information on Russian rare earth magnet manufacturers and major importers and buyers. ... Document in Response to Executive Order No. 13953 Signed 30 Sept 2020. …

Handbook of Rare Earth Elements

Written with Analytical Chemists, Inorganic Chemists, Spectroscopists as well as Industry Practitioners in mind, the Handbook of Rare Earth Elements is an indispensable reference for everyone …

Rare earth — Determination of rare earth content in …

chemical compound containing one rare earth element and the oxygen element or one acid radical Note 1 to entry: The oxide, chloride, carbonate, hydroxide, fluoride and oxalate compounds of rare earth are in the scope of this document. Note 2 to entry: It is assumed that the relative rare earth purity (3.7) of an individual rare earth compound is at

Rare Earth – REIA

Figure 7: Rare-earth demand by element in 2022 (estimated) & 2033 (projected). Source: Argus Media. Per Figure 8, total REE demand is forecast to increase steadily at 4%/year to close to 250 kt of REO by 2028, and then by just under 4%/year to almost 300 kt by 2033. Growth in demand for REEs in REPMs is expected at nearly 4%/year to 2033.

Rare-earth elements

The rare-earth elements (REEs) are 15 elements that range in atomic number from 57 (lanthanum) to 71 (lutetium); they are commonly referred to as the "lanthanides." Yttrium (atomic number 39) is also commonly regarded as an REE because it shares chemical and physical similarities and has affinities with the lanthanides. ... PDF documents ...

What are rare earth elements, and why are they …

The rare earth elements (REE) are a set of seventeen metallic elements. These include the fifteen lanthanides on the periodic table plus scandium …

GEOTRACES intercalibration of neodymium isotopes and rare earth …

We therefore strongly recommend filtration of seawater for Nd isotope and rare earth element concentration measurements. Dissolved 143 Nd/ 144 Nd ratios of seawater collected with Niskin bottles with internal nylon-coated stainless steel springs and trace metal-clean GO-FLO bottles were the same within 43 ppm (2σ SD).

The race to produce rare earth materials | MIT Technology …

Obtaining rare earth elements begins with obtaining source materials, which can happen, broadly, in three ways: primary extraction, or mining directly from the earth; recovery from secondary ...

Rare Earth Chemistry

This work introduces into the chemistry, materials science and technology of Rare Earth Elements. The chapters by experienced lecturers describe comprehensively the recent studies of their characteristics, properties and applications in functional materials. Due to the broad range of covered topics as hydrogen storage materials, LEDs or …

Permanent magnet properties of rapidly quenched rare earth …

Recent studies have demonstrated the potential of producing rare earth-iron permanent magnets by rapid quench processing. High coercivity, unachievable by traditional powder-metallurgy methods, has been obtained either by crystallization of an amorphous or rapidly quenched precursor or by direct-quenching. Results obtained by both techniques on a …

Guide for authors

Types of article Journal of Rare Earths published monthly with 96 papers is a unique international science and technology journal which presents original high quality works on various aspects of basic theory and applied science in the field of rare earths. The journal accepts contributions from authors both in China and abroad. Therefore, it provides an …

Rare Earth Elements Project | Science History Institute

Rare Earth Elements Project. The award-winning Rare Earth Elements Project explored the historical and contemporary challenges posed by the rare earth metals. These …

Rare Earths Statistics and Information | U.S. Geological …

Statistics and information on the worldwide supply of, demand for, and flow of the mineral commodity group rare earths - scandium, yttrium, and the lanthanides. The principal …

Rare Earth Elements: Where in the World Are …

The World's Biggest Oil Producers in 2023. This was originally posted on our Voronoi app.Download the app for free on iOS or Android and discover incredible data-driven charts from a variety of …

Rare-Earth-Ion-Doped Channel Waveguide Lasers on Silicon

This paper reviews the recent developments in rare-earth-ion-doped channel waveguide lasers. Optical gain in rare-earth-ion-doped waveguides has been increased by two orders of magnitude to ~1000 dB/cm and waveguide lasers with extremely high slope efficiencies and output powers exceeding the Watt level have been …