The ecological impacts of residues from the heap leaching of …
Heap leaching for rare earth elements poses a serious long-term threat to the adjacent ecological systems in mining areas. The purpose of this research is to thoroughly study the environmental effects of heap leaching in ion-adsorption rare earth element mine tailings after restoration by ecological measures. Soil samples were …
China's ion-adsorption rare earth resources, mining …
As a result, surface/mountaintop mining for ion-adsorption rare earth ores has become the dominant driver of land-use change and degradation in southern China, causing permanent loss of ecosystem ...
The Environmental Problems Caused by Mining | Earth.Org
A village was set up to support 15,000 miners working in the ruby mine near Ambatondrazaka, Madagascar. Photo: Pardieu et al. (2017). However, compared to many other industries such as agriculture, mining uses relatively small pockets of land, and the future of mining could move to using techniques that are arguably even less invasive on …
Mapping the Impacts and Conflicts of Rare-Earth Elements
Rare-earth elements (REEs) are a group of 17 chemical elements considered critical for digitalization and for the energy transition. While called "rare", they are not in fact rare in the Earth's crust and can be found in many places. ... Bayan Obo is a global reminder of the enormous hazards, radioactive pollution risks and related health ...
Mapping the Impact and Conflicts of Rare-Earth …
The Rare Earths Impacts and Conflict Map. The cases of socio-environmental resistance to REE extraction, processing and recycling documented on …
Boom in Mining Rare Earths Poses Mounting Toxic …
The chief worry is that the rare earth elements are bound up in mineral deposits with the low-level radioactive element thorium, exposure to which has been linked to an increased risk of developing lung, …
Global Environmental Health Impacts of Rare Earth Metals
The rise of globalization and industrialization has driven the demand for rare earth metals (REMs). These metals are widely used in various sectors of the global economy with various applications in medicine, renewable energy, electronics, agriculture, and the military. REMs are likely to remain an important part of our global future, and, as …
Rare earth supply disruptions have long-range …
May 20, 2021. Rare earth materials are essential to a variety of industries. A new study from Argonne explores the effects of supply disruptions such as mine shutdowns. Rare …
What are rare earth elements, and why are they important?
The rare earth elements (REE) are a set of seventeen metallic elements. These include the fifteen lanthanides on the periodic table plus scandium and yttrium. Rare earth elements are an essential part of many high-tech devices. The U.S. Geological Survey news release "Going Critical" explains:
A green and efficient technology to recover rare …
Heavy rare earth elements are critical for modern technological applications, including renewable energy technologies, but their extraction can have disastrous …
Simulating producer responses to selected chinese rare earth policies
Mined rare earth materials, which are further processed into rare earth oxides 1 ... Although rare earth prices in 2017 are much lower than their peaks in 2011, rare earth users remain vulnerable to the consequences of potential Chinese policy. Five policy areas are of special interest. First, the Chinese State Reserve Bureau (SRB) began a …
Not So "Green" Technology: The Complicated Legacy …
Mining U.S. sources of rare earth elements, President Joe Biden's administration stated in February 2021, is a matter of national security. Rare earths are not actually rare on Earth, but...
Porous materials for the recovery of rare earth elements, …
The demand for valuable metals such as rare earth elements and platinum group metals is rising fast in the context of the depletion of natural resources and international conflicts. Moreover, the future circular economy requires that raw material be recycled from waste by advanced methods such as adsorption by innovative porous …
What China's Ban on Rare Earths Processing Technology …
China announced a ban of rare earth extraction and separation technologies on December 21, 2023. This has significant implications for U.S. national, economic, and rare earth security. Rare earth elements—a group of 17 metals —are used in defense technologies, including missiles, lasers, vehicle-mounted systems such as tanks, and …
The only five rare earth elements that matter
101 Second St., Suite 110. Petaluma, CA 94952. Tel.: (707) 981-8999. Fax: (707) 981-8998. Email: jluther@streetwisereports. There is no single rare earth element market. Instead, the rare ...
Rare-earth element Facts for Kids
Rare-earth elements occur in nature in combination with phosphate (monazite), carbonate - fluoride (bastnäsite), and oxygen anions. In their oxides, most rare-earth elements only have a valence of 3 and form sesquioxides (cerium forms CeO 2 ). Five different crystal structures are known, depending on the element and the temperature.
Boom in Mining Rare Earths Poses Mounting Toxic Risks
By Mike Ives • January 28, 2013. In November, the first shipment of raw "rare earth" minerals arrived at an $800 million processing plant on Malaysia's east coast near the home of Tan Bun Teet. The plant, run by Australia's Lynas Corporation, has since begun refining the rare earth metals, essential components in wind turbines, hybrid ...
Pathways for greening the supply of rare earth …
Zongguo Wen. Nature Sustainability 1, 598–605 ( 2018) Cite this article. 2781 Accesses. 74 Citations. 3 Altmetric. Metrics. Abstract. Rare earths are essential to …
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.
Global demand for rare earth resources and strategies for …
Rare earths are actually not rare to exhibit a broad geographical distribution. The average levels of REEs in the earth's crust range from 150 to 220 ppm (ppm) which exceed the level of many other metals mined for industrial use (e.g. copper: 55 ppm and zinc: 70 ppm) (Long et al., 2010).Nonetheless, establishing and maintaining a reliable …
Consequences of Tuning Rare-Earth RE3+-Site and …
Both rare-earth SmMnO 3 and EuMnO 3 compounds that belong to transition-metal-based manganite perovskites REMnO 3 have been studied deeply in this paper. The structural, elastic, optoelectronic, magnetic, mechanical, and thermoelectronic properties of cubic SmMnO 3 and EuMnO 3 compounds have been computed using the …
Social and Environmental Impacts of Rare Earth Mining
The first major news stories of the environmental and social devastation caused by rare earth mining in China circulated in Anglophone media in 2009 (Margonelli 2009).Images of massive tailings ponds into which pipes belched mineral and chemical slurries against an industrial skyline in northern China were published alongside photos …
Protecting the environment and public health from …
PDF. Tools. Share. Abstract. As increasing demand for green energy and high-tech devices grows, so does the rising prospecting of rare earth metals required for their production. Protecting the environment …
Beyond rare earths | Nature Materials
In such a situation, geopolitical instabilities and tensions can have drastic consequences for materials production. The dominance of China in the production of rare-earth elements has been a ...
Environmental impacts of rare earth production
Abstract. Rare earth elements (REEs) are important raw materials for green technologies. However, REE mining and production uses techniques that are often not environmentally sustainable. Life cycle assessment (LCA) is a well-recognized method …
A review of ion adsorption clay as a high potential source of rare …
Rare earth elements (REEs) have emerged as a critical component in manufacturing various products for green technology. This paper aims to comprehensively review the formation of ion adsorption clay, REEs weathering profile, clay minerals' potential in adsorbing REEs, ion-exchange mechanism and method for REEs extraction, and the …
[PDF] China's ion-adsorption rare earth resources, mining consequences …
China's ion-adsorption rare earth resources, mining consequences and preservation @article{Yang2013ChinasIR, title={China's ion-adsorption rare earth resources, mining consequences and preservation}, author={X. Jin Yang and Aijun Lin and Xiaoliang Li and Yiding Wu and Wenbin Zhou and Zhanheng Chen}, journal={Environmental …
Global Environmental Health Impacts of Rare Earth …
Environmental Challenges Associated with Mining Rare Earth Metals. Rare earth metals (REMs) are commonly found in a variety of accessory minerals, such as …
China's ion-adsorption rare earth resources, mining …
As a result, surface/mountaintop mining for ion-adsorption rare earth ores has become the dominant driver of land-use change and degradation in southern China, causing permanent loss of ecosystem, severe soil erosion, air pollution, biodiversity loss and human health problems (Tang et al., 2000; Liu, 2002; Chen, 2010b; Anonymous, 2011b).
Rare Earth Elements: Reshaping the Global Supply Chain …
The growing demand for Rare Earth Elements (REEs) in various high-tech industries has led to a re-evaluation of global supply chains. This chapter explores the innovative concept of urban mining, a practice that seeks to recycle REEs from electronic waste and obsolete devices. By doing so, urban mining not only mitigates the challenges …