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Researchers in Zurich pioneer the recycling of rare earths from electronic waste

Researchers at the ETH University of Zurich developed a method that efficiently recovers rare earth elements from electronics waste. This advances sustainable recycling, and reduces mining dependence.

Rare earth elements are essential in modern electronics. They power fluorescent lamps, hard drive magnets, and they're used to produce generators for wind farm turbines.

According to ETH Zurich University, less than 1% rare earth materials can be recycled due to the enormous energy and chemical effort required to separate the elements within the materials. This comes at a significant cost.

ETH Pioneer Fellow Dr. Marie Perrin and Professor Dr. Victor Mougel, Associate Professor in the Department of Chemistry and Applied Biosciences at the University of Toronto, developed a method to separate these elements efficiently, by using a specially-designed extractant that alters their solubility.

Mougel stated that "we can separate these elements very well and in particular one of these elements - europium - which is found in fluorescent lights."

The discovery is timely as the European Union pushes for greater recycling of rare-earth metals due to rising environmental concerns as well as geopolitical and other pressures.

Perrin said that this innovation aims to help the EU meet its objectives under the Critical Raw Material Act, which was agreed upon in 2023. Under the act, the EU aims to mine 10 percent of its raw materials by 2030 and process 40 percent.

AlixPartners, a consultancy, said that China dominates the rare earth metals industry, with up to 70% global rare-earths production and 85% refining capacity.

Perrin said that the next step is to work with industrial partners to scale up the technology so they can have their own recycling capacity. (Reporting and editing by David Evans; Olivia Le Poidevin)

(source: Reuters)