• دوشنبه تا شنبه: 10:00 - 16:00 / یکشنبه تعطیل است

Just and Sustainable Solutions for the Mining and …

Many governments, the mining industry, and renewable energy companies are committed to tackling it. In addition to increasing oversight and transparency into rare earth element supply chains, one of …

به خواندن ادامه دهید

Five Steps for Solving the Rare-Earth Metals Shortage

Key Takeaways. The global 2050 carbon emissions targets may be eclipsed by a rare-earth supply-demand imbalance—unless governments, investors, and companies take swift, aggressive, and purposeful action. The global demand for rare earths is expected to reach 466 kilotons by 2035, up from 170 kilotons in 2022, an 8% compound annual …

به خواندن ادامه دهید

Just and Sustainable Solutions for the Mining and …

In addition to increasing oversight and transparency into rare earth element supply chains, one of many viable solutions to mitigating rare earth element extraction is recycling permanent magnets. Today, …

به خواندن ادامه دهید

DOE Awards $19 Million for Initiatives to Produce Rare Earth …

WASHINGTON, D.C. — The U.S. Department of Energy (DOE) today awarded $19 million for 13 projects in traditionally fossil fuel-producing communities across the country to support production of rare earth elements and critical minerals vital to the manufacturing of batteries, magnets, and other components important to the clean …

به خواندن ادامه دهید

The U.S. Wants a Rare-Earths Supply Chain. Here's Why It …

Wood Mackenzie's Rare Earths Market Service estimates demand for rare-earth oxides stood at 171,300 metric tons in 2022 and projects it to grow to 238,700 tons by 2030.

به خواندن ادامه دهید

Owner of US heavy rare earth mine licenses ORNL …

The REE-rich solution collected can then be further processed to yield rare earth oxides with purities exceeding 99.5%. ... The Critical Materials Innovation Hub seeks to accelerate innovative scientific …

به خواندن ادامه دهید

Influence of aluminum ions distribution on the removal of …

Rare earth oxides (analytical reagent grade) were bought from Baotou Rare Earth Plant, China. The de-ionized water was used during the experiments. Rare earth solutions were prepared in the laboratory. A certain amount of rare earth oxides was put in the breaker, and then 4 mol/L hydrochloric acid was slowly added into the breaker. The …

به خواندن ادامه دهید

Green rare-earth recycling goes commercial in the US

An innovative method of recycling rare earth elements from electronic waste has gone commercial. A team of researchers from the Critical Materials Institute (CMI), a U.S. Department of Energy Innovation Hub led by the Ames Laboratory, developed a novel way to extract rare earth elements (rare earths) from the high-powered magnets in …

به خواندن ادامه دهید

FACT SHEET: Biden-Harris Administration Announces …

rare earth elements that are critical to the functioning of defense systems, as well as clean energy technologies such as electric vehicle motors and wind turbines. The United States used to lead the world in rare earth element production. However, over the last three decades, the People's ... Innovative solutions are needed to address

به خواندن ادامه دهید

Removal of Aluminum from Synthetic Rare Earth Leach Solution …

The simulated rare earth leaching solution used for the experimental study process was a rare earth solution configured with yttrium as the main component. The concentration of Y 3+ in the solution was 5 g/L, and the Al 3+ content was adjusted according to the experimental study.

به خواندن ادامه دهید

A new map points at the impacts of rare earth …

Rare-earth elements (REEs) are a group of 17 chemical elements ... looking for solutions beyond technological fixes)? How can we ensure that this transition takes biophysical limits

به خواندن ادامه دهید

A new Wheat Ridge plant will process rare earths, which aren't so rare

Rare earth elements, despite their name, aren't that rare. ... Another path the company may pursue is to keep a facility open in Wheat Ridge and process rare earth solutions from other countries ...

به خواندن ادامه دهید

On the Hydration of the Rare Earth Ions in Aqueous Solution

The rare earth perchlorate solutions of Eu(ClO 4) 3, Gd(ClO 4) 3, Tb(ClO 4) 3 and Dy(ClO 4) 3 were produced from their oxides which were dissolved with perchloric acid. The rare earth oxides were purchased from Sigma–Aldrich (now Merck, Darmstadt, Germany) at 99.9% purity on trace metal basis, except Tb 2 O 3 with a purity of 99.99%. …

به خواندن ادامه دهید

Game-changing rare-earth elements separation technology licensed …

A new technology for rare-earth elements chemical separation has been licensed to Marshallton Research Laboratories, a North Carolina-based manufacturer of organic chemicals for a range of industries. ... An oily solvent containing the extractant is vigorously mixed with an REE-rich aqueous solution, then allowed to separate in the …

به خواندن ادامه دهید

Environmentally friendly comprehensive …

Rare earth elements (REEs) have obtained a greatest significant in human lives owing to their important roles in various high technology applications. The present …

به خواندن ادامه دهید

Extraction and back-extraction behaviors of 14 rare earth …

Solutions of extraction were prepared by diluting TODGA with aviation kerosene whose density is 0.8 g/mL. The mixture of the rare earth solution and the extraction agent solution (1:1) were put into a 250 mL separating funnel, mixed and shaken for 2 min. After standing, the organic phase and the aqueous phase were collected …

به خواندن ادامه دهید

A critical review on solvent extraction of rare earths …

Individual rare earths are difficult to separate from each other, due to their similar physical and chemical properties. Separation processes based on ion-exchange …

به خواندن ادامه دهید

Recycling Critical Minerals for Circular Clean Energy Solutions

Nth Cycle is a Boston-based company that uses innovative technology to recover rare earth elements from discarded electronics and other waste streams. The computer industry has supported rare earths recycling to lower its dependence on overseas suppliers. In a recent report, Apple revealed that 73% of the rare earth materials used in …

به خواندن ادامه دهید

Determining rare-earth elements in aqueous solutions …

A PGNAA set-up consisting of a 241 Am-Be neutron source and a HPGe detector was proposed to determine rare-earth elements in leachate during infiltration process, and was conducted to analyze samples containing gadolinium, samarium, and neodymium. A good agreement between the experimental net peak areas and the MCNP …

به خواندن ادامه دهید

Enhanced rare-earth separation with a metal-sensitive

Abstract. Technologically critical rare-earth elements are notoriously difficult to separate, owing to their subtle differences in ionic radius and coordination number 1, 2, 3. The natural ...

به خواندن ادامه دهید

From coal, a new source of rare earths

In 2015, global demand for rare-earth elements was 149,000 metric tons per year, according to Mary Anne Alvin, technology manager of rare-earth elements at the Department of Energy's National ...

به خواندن ادامه دهید

Behavior and mechanism of low-concentration rare earth …

The disposal of bulky low-concentration rare earth solutions (usually ≤ 200 mg L −1) is difficult and it can easily lead to the waste of rare earth resources.The precipitant separation method is a simple and effective technique that is commonly used for rare earth recovery, but the application of biological component precipitants is rarely …

به خواندن ادامه دهید

Selective removal of aluminum ions from rare earth solutions …

It is, therefore, especially important to separate aluminum ions from rare earth in the production process. It is relatively easy to remove macro aluminum impurities from rare earth leaching solution. The aluminum removal rate is 98.4% and the aluminum content from 4600 mg·L −1 to less than 80 mg·L −1 by using oxalic acid precipitation [18].

به خواندن ادامه دهید

Characteristics of Precipitation of Rare Earth Elements …

The effective and selective leaching of rare earth elements (REEs) from various sources is frequently possible in practice by adopting a carefully coordinated strategy incorporating a selective precipitation of these elements from undesired ones in solution. In this study, the behavior of chemical precipitation of REEs with commonly …

به خواندن ادامه دهید

Analysis of iron-rich hydrochloric acid solutions for uranium, …

A simple solvent extraction method is described for the separation of trace elements including uranium (U), thorium (Th) and rare-earth elements (REEs) from industrially processed iron-rich hydrochloric acid solutions. Iron (Fe) causes severe spectral interference during the analysis of trace elements using inductively coupled plasma …

به خواندن ادامه دهید

Recent advances in selective separation technologies …

This article mainly summarizes the latest developments in the separation of rare earth elements, evaluates the advantages and disadvantages of various process …

به خواندن ادامه دهید

Researchers aim to solve the rare earths crisis

Researchers aim to solve the rare earths crisis. Laura Lewis, Distinguished University Professor, Chemical Engineering, conducts research in 476 Snell Engineering. Credit: Matthew Modoono ...

به خواندن ادامه دهید

Separation of rare earths using solvent extraction

A new approach for grouping separation of multi- rare earths coexisting complex systems by liquid-liquid-liquid three phase system consisting of Cyanex272/PEG/(NH 4) 2 SO 4-H 2 O was investigated. It was found that, the 15 rare-earth elements, including lanthanides and yttrium, could be separated into three groups and …

به خواندن ادامه دهید

Selective separation of light rare-earth elements by …

Supramolecular chemical strategies for Rare Earth (RE) element separations are emerging which amplify the small changes in properties across the series to bias …

به خواندن ادامه دهید

Unlocking Potential: Rare Earth Elements Processing Solutions

Step 1 Crushing. The mined rare earth ores enter the jaw crusher through a vibrating feeder and are initially broken into smaller particles. A cone crusher is then used for secondary crushing. After screening, the particles will be further reduced to less than 20 mm to separate rare earth minerals and gangue minerals.

به خواندن ادامه دهید