REDUCING DEPENDENCE. Western companies have been trying to reduce their dependence on Chinese rare earths ever since. Tesla, which says it has already cut its rare earth usage by 25%, is part of a ...
For Vestas, a leading offshore wind turbine manufacturer, gearboxes result in five to 10 times less rare earths used per megawatt of power produced, spokesperson Claes Cunliffe told Grist in an ...
Compounding this challenge to China's rare-earth monopoly has been the coup in Myanmar. China is dependent on rare-earth imports from Myanmar, particularly heavy rare earths. Imports of heavy minerals from Myanmar account for 60% of domestic Chinese consumption—and China is no stranger to restrictions imposed by the Myanmar …
Effective adsorbents of rare-earth ions, for practical use, require high selectivity over base metal ions, high adsorption and desorption rates, ... After the sixth regeneration cycle, the desorption efficiency can still reach 92.3%. The reduction in capacity is mainly due to loss of a small amount of binding sites during the regeneration …
For example, in power trains, high oxygen concentrations in the rare-earth metal can reduce the intrinsic coercivity of the rare-earth permanent magnet, and, therefore, impact performance 27.
China Maintains Dominance in Rare Earth Production. A rare earth mine in Baiyunebo mining district of Baotou in north China's Inner Mongolia Autonomous Region. This is part 2 of a 3-part special report on the rare earth market. In 1987, then-Chinese President Deng Xiaoping famously said, "The Middle East has oil. China has rare earths.".
Rare Earth Reduction: A Technological Overview of State-of-the-Art Technology and Novel Developments. Robert G. Rush & Patrick R. Taylor. Conference paper. First Online: 14 February 2023. 681 Accesses. 1 Citations. Part of the The Minerals, Metals & Materials Series book series (MMMS) Abstract.
wind turbines and electric vehicle motors. However, reducing these rare earths into the metals is challenging metallurgically and economically. An overview will be given on the state-of-the-art processes for reducing rare earths from the rare earth oxides to the rare earth metal. The benefits and the challenges of the state-of-the
Rare earth (Rm) metals are a group of 17 metal elements, including 15 lanthanide elements (La–Lu) and Sc and Y from transition metals. Two-dimensional rare earth (Rm) materials have arisen as a unique and promising material family [[21], [22], [23]]. The majority of rare-earth atoms are divalent, but in the metallic form, they tend to …
Rare earth elements (REEs) refer to a group of 17 metallic elements, covering the 15 lanthanide series coupled with the yttrium and scandium (Damhus, 2005). ... This work aims to reduce the solid-waste produced in the sulfuric acid method by improving the selective leaching efficiency of REEs based on the leaching kinetics study of REEs, Fe …
"As a 25-year Navy veteran who served in the South China Sea, I know just how critical it is to invest in our nation's defense and technology capabilities. Our bipartisan bill will strengthen America's position as a global leader in technology by reducing our country's reliance on adversaries like China for rare earth elements," said Kelly.
April 22, 2022. Development of new magnet that reduces use of rare-earth element by 30% by National Research Council of Science & Technology. HAADF-STEM images and schematic illustrations of...
Detroit, October 6th 2021 – GE Renewable Energy (NYSE: GE) and General Motors (NYSE: GM) today announced they have signed a non-binding Memorandum of Understanding (MoU) to evaluate opportunities to improve supplies of heavy and light rare earth materials and magnets, copper and electrical steel used for manufacturing of …
The dramatic expansion of rare earth mining in northern Myanmar in recent years is fueling human rights abuses, destroying forests, and bankrolling groups linked to the military regime that ousted ...
Reducing rare earths is the approach that General Motors has taken with its Ultium family of electric motors that will be used in its new EVs starting with the Hummer SUV. This lets the company stick with permanent magnet motors while reducing reliance on problematic materials, said the company's General Director for Electrification Strategy ...
Most REEs are not as rare as the group's name suggests. They were named "rare-earth elements" because most were identified during the 18th and 19th centuries as "earths" (originally defined as materials that could not be changed further by heat) and in comparison to other "earths," such as lime or magnesia, they were relatively rare.
The government recently pledged to review the permit process for rare-earth mines so as to reduce the time it takes for companies to get approval to operate. Among …
Toyota used a few tricks to reduce its neodymium use. The company says that simply replacing the neodymium in a magnet with lanthanum and cerium results in a sub-par magnet with reduced coercivity ...
The protein then binds to the rare earth elements in the sample, which allows only the rare earths to be retained in the column and the remaining liquid drained off. Then, by changing the conditions, for example by changing the acidity or adding additional ingredients, the metals unbind from the protein and can be drained and collected.
In this study, we focus on three processes that are most commonly used to produce rare earth metals. Light rare earths (La, Ce, Nd, Pr) make up over 90% of those produced in China, the majority of ...
The demand for rare earths can be reduce by adoption of rare earths-free turbine designs and improving material efficiency. Abstract Considering the growing rate …
8 October 2021. A new method improves the extraction and separation of rare earth elements—a group of 17 elements critical for technologies such as smart phones and …
Rare-earth reduction. New methods leading to the reduction of heavy rare-earth elements in NdFeB permanent magnets with enhanced coercive force are being implemented by magnet manufacturers. The advent of rare earth-transition metal alloys, or inter-metallic compounds, such as samarium cobalt and a ternary system composed of …
Published April 5, 2023. Even as Chinese rare earth players cement their footholds in international markets, other countries are slowly making progress in rebuilding their rare earth supply chains ...
July 26, 2018. ChE/MIE Professor Laura Lewis and ECE Professor Vincent Harris are working on alternatives to rare-earth metals which are used from everything from …
This involves chemical or physical processes to separate precious metals or rare-earth elements present in e-waste from materials that are toxic or of little value. Two approaches currently ...
Northeastern researchers are trying to reduce our dependence on China by inventing alternative supermagnets that do not require rare earth metals. Reducing U.S. dependence The United States lost is position as the world's top producer of rare earth metals in early 1990s and stopped producing entirely in 1998, when the Mountain Pass …
Schematic of rare earth compound reduction by calcium [12–14, 16]. The heat source for the reaction can be induction or resistance heating. Using the same set-up it is possible to make rare earth metal from oxides. The rare earth oxide is reacted with Ca to form rare earth metal and calcium oxide. Since CaO is a high melting point oxide ...
A rare-earth refinery north of the Inner Mongolian city of Baotou, China, on Aug. 20, 2012. Ed Jones/AFP via Getty Images. When then-U.S. President Donald Trump offered to buy Greenland in 2019 ...
China possesses about 90% of the rare earth reduction industry, which promotes a worldwide production 9 million tons of PFC gases per year of rare earth electrolysis in a medium-emission scenario . It is a strategic importance in western countries to secure domestic downstream rare earth production, especially rare earth reduction.