Tag: indium

  • Belgium leads the way in rare earth metals recycling

    Belgium leads the way in rare earth metals recycling

    Belgium is a European leader in recycling, one of the few nations to meet recycling targets set out by the EU. Other than household and commercial waste, Belgian recycling plants are now helping to reduce Europe’s dependence on foreign minerals.

    Rare earth metals, commonly used in the production of high-tech goods, are desperately needed for the European economy. China has a monopoly on the supply of these metals, producing up to 97% of the world’s supply.

    In July, China placed export restrictions on gallium and germanium metals, which are indispensable for the production of advanced chips.

    China accounts for about 80% of the global production of gallium, which is used in integrated circuits, LEDs and solar panels, among others. The country also dominates the production of germanium, which is used in the production of fibre-optic cables and infrared applications.

    The European Commission is concerned that restrictions on exports of certain rare earth metals will impact EU supply chains, especially within the context of growing demand for these metals for the green transition. It wants to reduce dependence on third countries such as China to 65% for imports of 18 critical resources.

     

    Rare metals from scrap

    Belgian companies want to play a role in the transition away from reliance on rare earth metals imports. Even if Europe is not well-suited for the extraction of these precious metals, it can play a role in reducing imports, notably through recycling.

    One factory in Liège is one of the very few places in Europe to process metallurgy-related waste and recover the valuable rare earth metals. Hydrometal has been extracting gallium and germanium from waste for nearly 20 years. However, this is no simple process.

    “It’s very precise, difficult to make profitable, very competitive, and you can’t find a lot of raw materials on the market. It really requires specific knowledge and specific chemistry. Our factory is the only one in Wallonia. Today, there are two actors in Belgium who can do it, and only two actors in Europe too,” Phillipe Henry, administrator of Hydrometal, told RTL Info.

    Recent Chinese export restrictions have caused prices on the market to skyrocket. The current market price for gallium is $614 per kg, and $2,716 per kg for germanium. Faced with these rising prices, recycling has become a more profitable endeavour.

    “We are contacted almost every day to be able to respond to these challenges. They will not be easy, because we have to remain competitive, answer also have to see if it can be maintained in the long-term,” Henry noted.

    For now, Belgian companies are focused on the extraction of rare earth minerals from waste in the metallurgy industry. Granted, much of our tech and smartphones contain highly sought after rare earth metals, but these amounts are still too small to be profitable for major recycling companies.

    The amounts contained in phones amount to just a few grams per tonne, and it is not currently viable to extract gallium, germanium, or indium from them, at least in Belgium.

    While recycling plays an important role in reducing dependence on Chinese exports, Europe may soon switch to encouraging their extraction from European soil. Currently, no rare earth metals are mined in Europe.

    But new studies have revealed massive deposits of valuable rare earth metals, which could feasibly be extracted. In Sweden, mineral group LKAB discovered an untapped reserve of more than 10 million tonnes of oxides, the largest known deposit of its kind in Europe.

    The EU will reflect on the possibility of the opening of new rare earth metal mines in Europe, but will likely still face resistance from locals due to environmental concerns. The largest potential extraction site for Europe is at Kvanefjeld in Greenland, but extraction has been prevented by indigenous groups and local residents.

    The need to find new solutions is growing. Last year, European Commission President Ursula von der Leyen predicted that “Lithium and rare earth metals will soon be more important than oil and gas.”

  • Audi partners with university to research mineral recycling tech

    Audi partners with university to research mineral recycling tech

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    Audi is funding the research to examine the possibility of extracting tin, gallium and indium from incinerated household waste.

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    German auto manufacturer Audi’s Audi Environmental Foundation (AEF) has announced a collaboration with the Freiberg University of Mining and Technology to fund research into new recycling technologies to recover critical minerals.

    The university is developing a technology to selectively extract critical minerals such as tin, gallium and indium from recycled electronics to increase sustainability.

    While electronics containing valuable minerals are put into household waste and incinerated, the new technology that the university is developing would allow users to extract mineral ions from the resultant fly ash. This means that even when electronics are not correctly recycled, valuable minerals may still be recovered.

    The technology works by the creation of specially shaped “tweezer” heads called ligands. These heads will be made from the molecules that bind to the precious metal ions.

    Each head will collect one specific metal ion, be it gallium, indium or tin, and once collected an acid will be used to separate the molecule from the tweezer head. This will ensure that the minerals collected are still in a condition where they can be recycled into new technology, increasing sustainability.

    “The challenge is to produce molecules that specifically bind the desired metal ions,” said Betty Leibiger, the doctoral student at the university who is developing the recycling technology.

    “At this stage of the project, the focus is on developing a number of suitable tweezer heads, which will then be tested and further optimised on a small scale,” she continued. Once the process is optimised, experiments will be conducted on real fly ash. The university believes that the process can be scaled up once optimised.

    This is the latest mineral-focused renewable investment from Audi. In February 2022, the carmaker announced that from 2026 onwards, it would only launch fully electric models. Furthermore, it aims for 100% of its cars sales to be of electric vehicles (EVs) from 2030 onwards.

    The minerals being targeted in this recycling collaboration are vital elements in technologies such as semiconductors, fiber-optics and lithium-ion batteries crucial in EVs.[/vc_column_text][vc_empty_space][epic_post_tag compatible_column_notice=”” font_size=”17px”][/vc_column][vc_column width=”1/6″][vc_text_separator title=”LATEST NEWS” color=”juicy_pink”][vc_empty_space height=”10px”][widget-LatestPosts post_number=”4″][vc_empty_space height=”10px”][vc_text_separator title=”MOST POPULAR” color=”juicy_pink”][vc_empty_space height=”10px”][widget-popular-posts post_count=”4″][vc_empty_space][vc_wp_search title=”Search”][vc_empty_space][lvs display_like=””][/vc_column][vc_column width=”1/6″][/vc_column][/vc_row][/vc_section][vc_section][vc_row][vc_column][distance desktop_type=”50″][/vc_column][/vc_row][vc_row][vc_column width=”1/2″][epic_block_28 compatible_column_notice=”” number_post=”6″ post_offset=”0″ first_title=”You may also like”][/epic_block_28][vc_empty_space][/vc_column][vc_column width=”1/2″][epic_hero_5 compatible_column_notice=”” hero_margin=”0″ content_filter_number_alert=”” post_offset=”0″][/vc_column][/vc_row][/vc_section]