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Neodymium is a chemical element with the symbol Nd and atomic number 60. It is the fourth member of the lanthanide series and is considered to be one of the rare-earth metals. It is a hard, slightly malleable, silvery metal that quickly tarnishes in air and moisture. When oxidized, neodymium reacts quickly producing pink, purple/blue and yellow compounds in the +2, +3 and +4 oxidation states. It is generally regarded as having one of the most complex spectra of the elements. Neodymium was discovered in 1885 by the Austrian chemist Carl Auer von Welsbach, who also discovered praseodymium. It is present in significant quantities in the minerals monazite and bastnäsite. Neodymium is not found naturally in metallic form or unmixed with other lanthanides, and it is usually refined for general use. Neodymium is fairly common—about as common as cobalt, nickel, or copper—and is widely distributed in the Earth's crust. Most of the world's commercial neodymium is mined in China, as is the case with many other rare-earth metals.
Tantalum is a chemical element with the symbol Ta and atomic number 73. Previously known as tantalium, it is named after Tantalus, a figure in Greek mythology. Tantalum is a very hard, ductile, lustrous, blue-gray transition metal that is highly corrosion-resistant. It is part of the refractory metals group, which are widely used as components of strong high-melting-point alloys. It is a group 5 element, along with vanadium and niobium, and it always occurs in geologic sources together with the chemically similar niobium, mainly in the mineral groups tantalite, columbite and coltan.
The rare-earth elements (REE), also called the rare-earth metals or rare earths or, in context, rare-earth oxides, and sometimes the lanthanides, are a set of 17 nearly indistinguishable lustrous silvery-white soft heavy metals. Compounds containing rare earths have diverse applications in electrical and electronic components, lasers, glass, magnetic materials, and industrial processes.
A neodymium magnet (also known as NdFeB, NIB or Neo magnet) is a permanent magnet made from an alloy of neodymium, iron, and boron to form the Nd2Fe14B tetragonal crystalline structure.
The exploitation or destruction of natural resources is the use of natural resources for economic growth, sometimes with a negative connotation of accompanying environmental degradation. Environmental degradation can result from depletion of natural resources, this would be accompanied by negative effects to the economic growth of the effected areas.
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A samarium–cobalt (SmCo) magnet, a type of rare-earth magnet, is a strong permanent magnet made of two basic elements: samarium and cobalt.
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Natural resource economics deals with the supply, demand, and allocation of the Earth's natural resources. One main objective of natural resource economics is to better understand the role of natural resources in the economy in order to develop more sustainable methods of managing those resources to ensure their availability for future generations. Resource economists study interactions between economic and natural systems, with the goal of developing a sustainable and efficient economy.
Ferromanganese nodules are mineral concretions composed of silicates and insoluble iron and manganese oxides that form on the ocean seafloor and terrestrial soils. The formation mechanism involves a series of redox oscillations driven by both abiotic and biotic processes. As a byproduct of pedogenesis, the specific composition of a ferromanganese nodule depends on the composition of the surrounding soil. The formation mechanisms and composition of the nodules allow for couplings with biogeochemical cycles beyond iron and manganese. The high relative abundance of nickel, copper, manganese, and other rare metals in nodules has increased interest in their use as a mining resource.
Cobalt is a chemical element with the symbol Co and atomic number 27. As with nickel, cobalt is found in the Earth's crust only in a chemically combined form, save for small deposits found in alloys of natural meteoric iron. The free element, produced by reductive smelting, is a hard, lustrous, silvery metal.
The rare earth industry in China is a large industry. Rare earths are a group of elements on the periodic table with similar properties. Rare earth metals are used to manufacture everything from electric vehicles (EVs), wind turbines, consumer electronics and other clean energy technologies. The rare earths cause improved system performance when for example electric battery terminal LiMn2O4 cathodes are doped with them, and it is known that some EVs use lithium-ion batteries such as these. Tesla automobiles "currently uses an lithium-nickel-cobalt-aluminum (NCA) chemistry, while lithium-nickel-manganese-cobalt (NMC) chemistries are common across the rest of the EV industry." Vehicle "manufacturers are keen to reduce reliance on rare earths, which like cobalt, suffers from highly concentrated supply and unpredictable pricing, with China holding a virtual global monopoly in primary supply and processing." Leading battery manufacturer Samsung SDI uses this technology for its phone and portable computer batteries.
The report Metal Stocks in Society: Scientific Synthesis was the first of six scientific assessments on global metals to be published by the International Resource Panel (IRP) of the United Nations Environment Programme. The IRP provides independent scientific assessments and expert advice on a variety of areas, including:
American Elements is a global manufacturer and distributor of advanced materials with a more than 35,000-page online product catalog and compendium of information on the chemical elements, advanced materials, and high technology applications. The company's headquarters and educational programs are based in Los Angeles, California. Its research and production facilities are located in Salt Lake City, Utah; Monterrey, Mexico; Baotou, China; and Manchester, UK.
Michael Nathan Silver is a business executive, philanthropist, art collector, and commentator. He is the founder and CEO of American Elements, a global high-technology materials manufacturer. He helped establish the post-Cold War rare earth supply chain from China to the U.S. and Europe. His philanthropy includes sponsoring materials science and green technology conferences and educational television programs on high technology and contributing funding to the arts. He served as a trustee of the Natural History Museum of Los Angeles County and serves on the directors council of the Getty Museum and on the board of directors of the Institute of Contemporary Art in Los Angeles, CA. He writes and speaks on science education and Sino-American relations.
Material criticality is the determination of which materials that flow through an industry or economy are most important to the production process. It is a sub-category within the field of material flow analysis (MFA), which is a method to quantitatively analyze the flows of materials used for industrial production in an industry or economy. MFA is a useful tool to assess what impacts materials used in the industrial process have and how efficiently a given process uses them.
The rare earths trade dispute, between China on one side and several countries on the other, was over China's export restrictions on rare earth elements as well as tungsten and molybdenum. Rare earth metals are used to make lithium ion (li-on) batteries, top of the line neodymium magnets, defense products and many electronics.
Since 2011 the European Commission has assessed every 3 years a list of Critical Raw Materials (CRMs) for the EU economy within its Raw Materials Initiative. To date, 14 CRMs were identified in 2011, 20 in 2014, 27 in 2017 and 30 in 2020. These materials are mainly used in energy transition and digital technologies. Then in March 2023 Commission President Ursula von der Leyen proposed the Critical Raw Materials Act, "for a regulation of the European Parliament and of the European Council establishing a framework for ensuring a secure and sustainable supply of critical raw materials". At the time, Europe depended on China for 98% of its rare-earth needs, 97% of its lithium supply and 93% of its magnesium supply.
Electric cars have a smaller environmental footprint than conventional internal combustion engine vehicles (ICEVs). While aspects of their production can induce similar, less or alternative environmental impacts, they produce little or no tailpipe emissions, and reduce dependence on petroleum, greenhouse gas emissions, and health effects from air pollution. Electric motors are significantly more efficient than internal combustion engines and thus, even accounting for typical power plant efficiencies and distribution losses, less energy is required to operate an EV. Manufacturing batteries for electric cars requires additional resources and energy, so they may have a larger environmental footprint from the production phase. EVs also generate different impacts in their operation and maintenance. EVs are typically heavier and could produce more tire and road dust air pollution, but their regenerative braking could reduce such particulate pollution from brakes. EVs are mechanically simpler, which reduces the use and disposal of engine oil.
The electric vehicle supply chain comprises the mining and refining of raw materials and the manufacturing processes that produce lithium ion batteries and other components for electric vehicles. The lithium-ion battery supply chain is a major component of the overall EV supply chain, and the battery accounts for 30%-40% of the value of the vehicle. Lithium, cobalt, graphite, nickel, and manganese are all critical minerals that are necessary for electric vehicle batteries. There is rapidly growing demand for these materials because of growth in the electric vehicle market, which is driven largely by the proposed transition to renewable energy. Securing the supply chain for these materials is a major world economic issue. Recycling and advancement in battery technology are proposed strategies to reduce demand for raw materials. Supply chain issues could create bottlenecks, increase costs of EVs and slow their uptake.
References
- 1 2 3 U.S. Department of Energy. Critical Materials Strategy. Washington, D.C.: U.S. Department of Energy.
- ↑ "Technology Critical Elements and their Relevance to the Global Environment Facility" (PDF). Retrieved 10 July 2022.
- ↑ Dang, Duc Huy; Filella, Montserrat; Omanović, Dario (1 November 2021). "Technology-Critical Elements: An Emerging and Vital Resource that Requires more In-depth Investigation". Archives of Environmental Contamination and Toxicology. 81 (4): 517–520. doi: 10.1007/s00244-021-00892-6 . ISSN 1432-0703. PMID 34655300. S2CID 238995249.
- 1 2 3 APS (American Physical Society) and MRS (The Materials Research Society) (2011). Energy Critical Elements: Securing Materials for Emerging Technologies (PDF). Washington, D.C.: APS.
- 1 2 European Commission (2010). Critical Raw Materials for the EU. Report of the Ad-hoc Working Group on Defining Critical Raw Materials.
- ↑ Resnick Institute (2011). Critical Materials for Sustainable Energy Applications (PDF). Pasadena, CA: Resnick Institute for Sustainable Energy Science.
- ↑ Gunn, G. (2014). Critical Metals Handbook. Wiley.
- ↑ European Commission (2014). Report on Critical Raw Materials for the EU. Report of the Ad-hoc Working Group on Defining Critical Raw Materials. European Commission.
- ↑ Parthemore, C. (2011). Elements of Security. Mitigating the Risks of U.S. Dependence on Critical Minerals. Center for New America Security.
- ↑ Turner, Roger (21 June 2019). "A Strategic Approach to Rare-Earth Elements as Global Trade Tensions Flare". www.greentechmedia.com.
- 1 2 Cobelo-García, A.; Filella, M.; Croot, P.; Frazzoli, C.; Du Laing, G.; Ospina-Alvarez, N.; Rauch, S.; Salaun, P.; Schäfer, J. (2015). "COST action TD1407: network on technology-critical elements (NOTICE)—from environmental processes to human health threats". Environ. Sci. Pollut. Res. 22 (19): 15188–15194. doi:10.1007/s11356-015-5221-0. PMC 4592495 . PMID 26286804.
This article incorporates text available under the CC BY 4.0 license. - ↑ "New life cycle assessment study shows useful life of tech-critical metals to be short". University of Bayreuth. Retrieved 23 June 2022.
- ↑ Charpentier Poncelet, Alexandre; Helbig, Christoph; Loubet, Philippe; Beylot, Antoine; Muller, Stéphanie; Villeneuve, Jacques; Laratte, Bertrand; Thorenz, Andrea; Tuma, Axel; Sonnemann, Guido (19 May 2022). "Losses and lifetimes of metals in the economy" (PDF). Nature Sustainability. 5 (8): 717–726. doi:10.1038/s41893-022-00895-8. ISSN 2398-9629. S2CID 248894322.
- 1 2 Ali, S.; Katima, J. (2020). Technology Critical Elements and the GEF, A STAP Advisory Document. Washington, DC.: Scientific and Technical Advisory Panel to the Global Environment Facility.
- 1 2 Ali, S.; Katima, J. (2020). Technology Critical Elements and their Relevance to the Global Environment Facility. Washington, DC.: Scientific and Technical Advisory Panel to the Global Environment Facility.
