The recovery of rare earths

With the recovery of rare earths the production costs of technological devices decrease, the environmental impact decreases and the resources of our planet are preserved. The Rare lands materials are widely used in the production of technology for daily use: lithium, uranium, phosphorus and other rare metals which, after extraction, undergo a cumbersome refining process. The largest mine in Rare lands currently present in the world is represented by WEEE waste.

Not just technological devices, the Rare lands are a group of 17 elements that find applications in the agricultural sector, in the energy sector as superconductors, are used in nuclear medicine, by the automotive industry and thanks to their particular spectroscopy, some Rare lands they can be used as specialty inks such as those used in airborne radar, x-ray screens, high intensity light bulbs, charged particle detectors and much more.

Today, the recovery of rare earths occurs mainly through a wise disposal of electronic devices such as old TV tubes and computer monitors, a large amount of Rare lands isrecovered from smartphone and LED display. We talk about e-scraps to indicate electronic waste that currently represent a reserve of Rare lands and other metals: the industries that deal with the recovery of rare earths they also focus their attention on other materials such as zinc, strontium, zirconium, lead and indium.

How does the recovery of rare earths?
It starts with the separate collection of devices that contain material to be recovered. The device will initially undergo a separation process to isolate the components that contain the Rare lands. Only at this point it will be possible to proceed with the mechanical grinding which, in some cases, requires a preliminary cryogenic process. This first phase of separation ends with an acid or basic digestion attack which completely isolates them Rare lands from other materials. At this point the real will begin recovery rare earths.

From which devices does the recovery of rare earths?
Consumer technology: cell phones, smartphones, PCs, notebooks, servers, decoders, cameras ...
Light sources: mainly LED
LCD screens: displays, ebook readers ...
Medical: resonances ...
Photovoltaic panels

Video: The Search For Rare Earths. Treasure Hunters. Spark (October 2020).