Rare Earth Elements

What are rare earth elements and why are they important?

Rare earth elements (REEs) are a group of 17 metallic elements, comprising the 15 lanthanides on the periodic table, plus scandium and yttrium. Despite their name, these elements are relatively abundant in the Earth's crust but are seldom found in concentrated forms, making their extraction and processing both challenging and costly.

REEs possess unique magnetic, phosphorescent, and catalytic properties, rendering them indispensable in various high-tech applications:

Electronics: Used in the manufacturing of smartphones, digital cameras, computer hard disks, and flat-screen displays.

Renewable Energy: Essential for producing permanent magnets used in electric vehicle motors and wind turbines.

Defense: Integral components in missile systems, radar equipment, and other military technologies.

Medical Technology: Utilized in medical imaging devices and as tracers in various diagnostic procedures.

The global supply chain for REEs is heavily concentrated, with China accounting for approximately 60% of global mining production and 90% of processing and permanent magnet output. This dominance has significant geopolitical implications, as nations strive to secure stable and independent sources of these critical materials.

Environmental concerns also accompany the extraction and processing of rare earth elements. The procedures often generate toxic waste and can involve radioactive materials, leading to potential ecological damage. As a result, there is an ongoing effort to develop more sustainable and environmentally friendly extraction technologies.

In summary, rare earth elements are vital to modern technology and industry, playing a crucial role in the advancement of electronics, renewable energy, defense systems, and medical technologies. Their unique properties and the complexities associated with their supply and environmental impact underscore their global importance.

Rare Earth Elements

What are Rare Earths?

Known as “the seeds of technology,” rare earth elements (REEs) make today’s emerging technologies possible – from the miniaturization of electronics, to the enabling of “green” and medical technologies, to supporting essential defense, telecommunication, and transportation systems. REEs have unique magnetic, phosphorescent, and catalytic properties. In permanent magnets, they radically boost the magnetic strength, benefiting a wide array of uses.

Which Elements are They?

REEs are a set of seventeen chemical elements in the periodic table, specifically the fifteen lanthanides plus scandium and yttrium. Scandium and yttrium are considered REEs since they tend to occur in the same mineral deposits as the lanthanides and exhibit similar chemical properties, which includes being malleable with high melting and boiling points. Each of the REEs contain a subshell that houses f-electrons, which give them their magnetic and luminescent properties, and all are considered metals.

Why are they so important?

REEs unique characteristics allow them to enhance the performance of other metals and in most cases result in a reduction of the amount of metal necessary for an application, allowing things to be smaller and lighter. They are used in everyday technologies like a cellphone and computer. They are also used in advance medical technologies like MRIs, laser scalpels and even some cancer drugs. In defense applications, they are used in satellite communications, guidance systems and aircraft structures. They are critical in a number of green technologies, especially those that are going to support net zero carbon emissions goals, like wind turbines and electric vehicles.

With rare earths, a little goes a long way. The amount of rare earths used in high tech equipment is small but almost always critical to the unit’s performance. For example, a smartphone uses seven rare earths – for everything from its colored screen, to its speakers, to the

Episode 4260 - Feb 28 - Tiếng Anh - Nguyên tố đất hiếm - Vina Technology at AI time

Vina Technology at AI time - Công nghệ Việt Nam thời AI

Episode 4260 - Feb 28 - Tiếng Anh - Nguyên tố đất hiếm - Vina Technology at AI time