rareearth(Rare Earth A Precious but Overlooked Resource)
作者: jk2023-04-25 12:08:40
Rare Earth: A Precious but Overlooked Resource
Rare earth elements (REEs) refer to a group of 17 minerals that are crucial components in the production of various high-tech products such as smartphones, TVs, wind turbines, and electric vehicles. Despite their name, REEs are not particularly rare in the earth's crust, but they are difficult to extract and process economically. In recent years, the growing demand for these minerals has made them a valuable commodity, and as global technological advancements continue, the importance of REEs cannot be overemphasized. In this article, we explore what REEs are, their uses, and why they are essential to our modern way of life.
What are Rare Earth Elements?
REEs are a group of chemically diverse elements that occur naturally in the earth's crust. They were first discovered in the late 18th century and initially used in traditional applications such as glassmaking and ceramics. However, with the advent of modern technology, their importance has grown exponentially. The 17 elements are divided into two groups: light REEs, including cerium, lanthanum, and neodymium; and heavy REEs, including europium, gadolinium, and yttrium.
Uses of Rare Earth Elements
REEs have a wide variety of uses that make them essential components in modern technology. For instance, neodymium, which is a light REE, is utilized to make powerful magnets for electric motors in hybrid and electric vehicles. Europium, a heavy REE, is used in the production of LEDs (light-emitting diodes) that are commonly found in TVs, smartphones, and computer monitors. Lanthanum, another light REE, is used in rechargeable batteries, catalytic converters, and camera lenses. Some REEs are also used in nuclear energy, with cerium being used to control reactor temperatures.
The Importance of Rare Earth Elements
Rare earth elements are vital to the modern world, yet their importance is often overlooked. Without them, many essential technologies would not exist, and our reliance on fossil fuels would be much higher. Furthermore, China currently dominates the rare-earths market, accounting for about 80% of global production. This domination has created potential geopolitical complications, leading to some countries to consider investment in exploration and extraction projects. Additionally, mining and processing rare earth elements are environmentally harmful, and with growing demand, finding ways to extract them sustainably is crucial. Developing alternative ways to extract and recycle REEs is also necessary to find a balance between technological development and environmental conservation.
Conclusion
In conclusion, rare earth elements play an essential role in modern technology, and their importance is only expected to grow further as we move towards more sustainable and environmentally friendly energy sources. Although they are not scarce in the earth's crust, the cost of extraction and processing is high, leading to potential supply disruptions. The use of REEs is set to continue growing in the future, great efforts are required to ensure sustainable and responsible mining practices continue to mitigate their impact on the environment.
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rareearth(Rare Earth A Precious but Overlooked Resource)