{"id":1245,"date":"2025-03-25T12:45:13","date_gmt":"2025-03-25T11:45:13","guid":{"rendered":"https:\/\/mines-urbaines.eu\/nos-recherches\/metaux-strategiques\/"},"modified":"2026-06-22T11:02:48","modified_gmt":"2026-06-22T09:02:48","slug":"strategic-metals","status":"publish","type":"page","link":"https:\/\/mines-urbaines.eu\/en\/our-research\/strategic-metals\/","title":{"rendered":"Strategic metals"},"content":{"rendered":"\n\n<section class=\"block-hero block-hero-1\"\n         data-dark-bg=\"true\">\n                    <div class=\"section-breadcrumb\">\n            <div class=\"container\">\n                            <div class=\"breadcrumb\">\n            <ul class=\"breadcrumb-list\">\n                <li class=\"breadcrumb-list_item\">\n                    <a href=\"https:\/\/mines-urbaines.eu\/en\/\">Accueil<\/a>\n                <\/li>\n                                    <li class=\"breadcrumb-list_item\"><\/li>\n                            <\/ul>\n        <\/div>\n    \n            <\/div>\n        <\/div>\n        <div class=\"block-hero-1_bg\">\n                    <img decoding=\"async\" src=\"https:\/\/mines-urbaines.eu\/wp-content\/uploads\/2026\/05\/PCB-CPU.jpg\" alt=\"Pcb Cpu\">\n    \n    <\/div>\n    <div class=\"block-hero-1_content\">\n        <div class=\"container\">\n            <div class=\"grid\">\n                <div class=\"grid_content subgrid\">\n                                            <div class=\"uppertitle\">\n                            <div class=\"uppertitle_content\">\n                                Strategic metals\n                            <\/div>\n                        <\/div>\n                                                    <h1 class=\"title title-hero\">Optimizing the Recycling of Strategic Metals<\/h1>\n    \n                                            \n                                    <\/div>\n            <\/div>\n        <\/div>\n    <\/div>\n<\/section>\n\n\n\n\n        \n<section    \n        class=\"block-content block-content-2 block-content-2-cmu img-left\"\n        data-dark-bg=\"false\">\n    <div class=\"container\">\n        <div class=\"grid\">\n            <div class=\"grid_content\">\n                            <div class=\"uppertitle\">\n            <div class=\"uppertitle_content\">\n                Challenges and Objectives\n            <\/div>\n        <\/div>\n    \n                            <h2 class=\"title title-section\">Strategic Metals in WEEE: A Critical Resource for Europe<\/h2>\n    \n                                            <div class=\"editor\"><div class=\"qMYqUG_convSearchResultHighlightRoot\">\n<div class=\"\" data-turn-id-container=\"request-WEB:74330720-6fd8-4571-bf63-bf9f8b440b65-144\" data-is-intersecting=\"true\">\n<section class=\"text-token-text-primary w-full focus:outline-none has-data-writing-block:pointer-events-none [&amp;:has([data-writing-block])&gt;*]:pointer-events-auto R6Vx5W_threadScrollVars scroll-mb-[calc(var(--scroll-root-safe-area-inset-bottom,0px)+var(--thread-response-height))] scroll-mt-[calc(var(--header-height)+min(200px,max(70px,20svh)))]\" dir=\"auto\" data-turn-id=\"request-WEB:74330720-6fd8-4571-bf63-bf9f8b440b65-144\" data-turn-id-container=\"request-WEB:74330720-6fd8-4571-bf63-bf9f8b440b65-144\" data-testid=\"conversation-turn-290\" data-scroll-anchor=\"false\" data-turn=\"assistant\">\n<div class=\"text-base my-auto mx-auto pb-10 [--thread-content-margin:var(--thread-content-margin-xs,calc(var(--spacing)*4))] @w-sm\/main:[--thread-content-margin:var(--thread-content-margin-sm,calc(var(--spacing)*6))] @w-lg\/main:[--thread-content-margin:var(--thread-content-margin-lg,calc(var(--spacing)*16))] px-(--thread-content-margin)\">\n<div class=\"[--thread-content-max-width:40rem] @w-lg\/main:[--thread-content-max-width:48rem] mx-auto max-w-(--thread-content-max-width) flex-1 group\/turn-messages focus-visible:outline-hidden relative flex w-full min-w-0 flex-col agent-turn\" data-conversation-screenshot-content=\"\">\n<div class=\"flex max-w-full flex-col gap-4 grow\">\n<div class=\"min-h-8 text-message relative flex w-full flex-col items-end gap-2 text-start break-words whitespace-normal outline-none keyboard-focused:focus-ring [.text-message+&amp;]:mt-1\" dir=\"auto\" tabindex=\"0\" data-message-author-role=\"assistant\" data-message-id=\"411fc48e-bf43-42cf-939e-83aa8e3ef94c\" data-message-model-slug=\"gpt-5-3-mini\" data-turn-start-message=\"true\">\n<div class=\"flex w-full flex-col gap-1 empty:hidden\">\n<div class=\"markdown prose dark:prose-invert wrap-break-word w-full dark markdown-new-styling\">\n<p data-start=\"0\" data-end=\"413\" data-is-last-node=\"\" data-is-only-node=\"\">The rapid development of new high-value technologies has significantly accelerated global consumption of metal resources over the past decades. Since the beginning of the 20th century, the number of metals used in industry has doubled, and around twenty new elements have now become essential to many applications such as low-carbon energy production, energy storage, computing, telecommunications, and aerospace.<\/p>\n<\/div>\n<\/div>\n<\/div>\n<\/div>\n<div class=\"z-0 flex min-h-[46px] justify-start\"><\/div>\n<div class=\"mt-3 w-full empty:hidden\">\n<div class=\"text-center\"><\/div>\n<\/div>\n<\/div>\n<\/div>\n<\/section>\n<\/div>\n<\/div>\n<div class=\"pointer-events-none -mt-px h-px translate-y-[calc(var(--scroll-root-safe-area-inset-bottom)-14*var(--spacing))]\" aria-hidden=\"true\"><\/div>\n<\/div>\n    \n                            <\/div>\n            <div class=\"grid_media grid_media-image\">\n                            <img decoding=\"async\" src=\"https:\/\/mines-urbaines.eu\/wp-content\/uploads\/2025\/06\/des-initiatives-pour-promouvoir-l-economie-circulaire.webp\" alt=\"Des Initiatives Pour Promouvoir L Economie Circulaire\">\n    \n            <\/div>\n        <\/div>\n    <\/div>\n<\/section>\n\n\n\n\n        \n<section    \n        class=\"block-content block-content-2 block-content-2-cmu img-right\"\n        data-dark-bg=\"false\">\n    <div class=\"container\">\n        <div class=\"grid\">\n            <div class=\"grid_content\">\n                    \n                    \n                                            <div class=\"editor\"><div class=\"qMYqUG_convSearchResultHighlightRoot\">\n<div class=\"\" data-turn-id-container=\"request-WEB:74330720-6fd8-4571-bf63-bf9f8b440b65-145\" data-is-intersecting=\"true\">\n<section class=\"text-token-text-primary w-full focus:outline-none has-data-writing-block:pointer-events-none [&amp;:has([data-writing-block])&gt;*]:pointer-events-auto R6Vx5W_threadScrollVars scroll-mb-[calc(var(--scroll-root-safe-area-inset-bottom,0px)+var(--thread-response-height))] scroll-mt-[calc(var(--header-height)+min(200px,max(70px,20svh)))]\" dir=\"auto\" data-turn-id=\"request-WEB:74330720-6fd8-4571-bf63-bf9f8b440b65-145\" data-turn-id-container=\"request-WEB:74330720-6fd8-4571-bf63-bf9f8b440b65-145\" data-testid=\"conversation-turn-292\" data-scroll-anchor=\"false\" data-turn=\"assistant\">\n<div class=\"text-base my-auto mx-auto pb-10 [--thread-content-margin:var(--thread-content-margin-xs,calc(var(--spacing)*4))] @w-sm\/main:[--thread-content-margin:var(--thread-content-margin-sm,calc(var(--spacing)*6))] @w-lg\/main:[--thread-content-margin:var(--thread-content-margin-lg,calc(var(--spacing)*16))] px-(--thread-content-margin)\">\n<div class=\"[--thread-content-max-width:40rem] @w-lg\/main:[--thread-content-max-width:48rem] mx-auto max-w-(--thread-content-max-width) flex-1 group\/turn-messages focus-visible:outline-hidden relative flex w-full min-w-0 flex-col agent-turn\" data-conversation-screenshot-content=\"\">\n<div class=\"flex max-w-full flex-col gap-4 grow\">\n<div class=\"min-h-8 text-message relative flex w-full flex-col items-end gap-2 text-start break-words whitespace-normal outline-none keyboard-focused:focus-ring [.text-message+&amp;]:mt-1\" dir=\"auto\" tabindex=\"0\" data-message-author-role=\"assistant\" data-message-id=\"25a67623-7f6f-42fc-bd29-8c98c06afbb4\" data-message-model-slug=\"gpt-5-3-mini\" data-turn-start-message=\"true\">\n<div class=\"flex w-full flex-col gap-1 empty:hidden\">\n<div class=\"markdown prose dark:prose-invert wrap-break-word w-full dark markdown-new-styling\">\n<p data-start=\"0\" data-end=\"591\" data-is-last-node=\"\" data-is-only-node=\"\">However, Europe remains dependent on the supply of metallic raw materials and is vulnerable to price fluctuations and risks of shortages. This is why the European Commission regularly publishes a list of so-called \u201ccritical metals,\u201d some of which are found in WEEE (Waste Electrical and Electronic Equipment). Among the most common metals in WEEE are steel, copper, tin, cobalt, indium, and tantalum. Other precious metals such as gold, silver, silicon, lithium, and several rare earth elements are also widely used and can be found in higher concentrations in WEEE than in natural deposits.<\/p>\n<\/div>\n<\/div>\n<\/div>\n<\/div>\n<div class=\"z-0 flex min-h-[46px] justify-start\"><\/div>\n<div class=\"mt-3 w-full empty:hidden\">\n<div class=\"text-center\"><\/div>\n<\/div>\n<\/div>\n<\/div>\n<\/section>\n<\/div>\n<\/div>\n<div class=\"pointer-events-none -mt-px h-px translate-y-[calc(var(--scroll-root-safe-area-inset-bottom)-14*var(--spacing))]\" aria-hidden=\"true\"><\/div>\n<\/div>\n    \n                            <\/div>\n            <div class=\"grid_media grid_media-image\">\n                            <img decoding=\"async\" src=\"https:\/\/mines-urbaines.eu\/wp-content\/uploads\/2025\/09\/f4dac0bfthumbnail-1024x512-2.jpeg\" alt=\"\">\n    \n            <\/div>\n        <\/div>\n    <\/div>\n<\/section>\n\n\n\n\n<section    \n        class=\"block-listing block-listing-3-cmu alt\"\n        data-dark-bg=\"true\">\n    <div class=\"container\">\n        <div class=\"grid\">\n            <div class=\"grid_title\">\n                            <div class=\"uppertitle\">\n            <div class=\"uppertitle_content\">\n                Our research\n            <\/div>\n        <\/div>\n    \n                                \n                                \n                                        \n                        \n                    \n            <h2\n        class=\"title title-section\"\n                        >Recycling of strategic metals from WEEE.<\/h2>\n    \n                    \n            <\/div>\n                            <div class=\"grid_content\">\n                                                                    <div class=\"item\">\n                                                                            \n                                \n                                        \n                                \n                    \n            <h3\n        class=\"subtitle\"\n                        >\u2705 \u200bVerification of the compatibility of collection streams with treatment processes.<\/h3>\n    \n                                                        <div class=\"item_content\">\n                                                                                <div class=\"editor\"><p>This involves checking whether the metals collected from WEEE can be effectively processed using current recycling technologies.<\/p>\n<\/div>\n    \n                                                            <\/div>\n                        <\/div>\n                                                                    <div class=\"item\">\n                                                                            \n                                \n                                        \n                                \n                    \n            <h3\n        class=\"subtitle\"\n                        >\u2705 \u200bDevelopment of miniaturized analytical methodologies.<\/h3>\n    \n                                                        <div class=\"item_content\">\n                                                                                <div class=\"editor\"><p>These methodologies enable better characterization of products before and after recycling, while reducing the scale of required equipment, and allow recycling processes to be monitored more precisely and efficiently.<\/p>\n<\/div>\n    \n                                                            <\/div>\n                        <\/div>\n                                                                    <div class=\"item\">\n                                                                            \n                                \n                                        \n                                \n                    \n            <h3\n        class=\"subtitle\"\n                        >\u2705 \u200bAnticipation of the evolution of Waste Electrical and Electronic Equipment (WEEE).<\/h3>\n    \n                                                        <div class=\"item_content\">\n                                                                                <div class=\"editor\"><p>This involves forecasting how WEEE will evolve in the coming years in terms of material and metal composition, in order to ensure that current recycling systems remain suitable for these changes.<\/p>\n<\/div>\n    \n                                                            <\/div>\n                        <\/div>\n                                                                    <div class=\"item\">\n                                                                            \n                                \n                                        \n                                \n                    \n            <h3\n        class=\"subtitle\"\n                        >\u2705 \u200bDevelopment of processes for extracting metals at low concentrations.<\/h3>\n    \n                                                        <div class=\"item_content\">\n                                                                                <div class=\"editor\"><p>Strategic metals, often present in low quantities in WEEE, require new processes to extract them more efficiently.<\/p>\n<\/div>\n    \n                                                            <\/div>\n                        <\/div>\n                                    <\/div>\n                                <\/div>\n    <\/div>\n<\/section>\n\n\n\n<section     class=\"block-carousel block-carousel-5 block-carousel-5-cmu\">\n    <div class=\"container\">\n        <div class=\"grid\">\n            <div class=\"grid_title\">\n                            <div class=\"uppertitle\">\n            <div class=\"uppertitle_content\">\n                Our work\n            <\/div>\n        <\/div>\n    \n                            <h2 class=\"title title-section\"><span>Some projects<\/span> of the Chair<\/h2>\n    \n            <\/div>\n            <div class=\"grid_swiper\">\n                <div class=\"swiper swiperCarousel-5-cmu\">\n                    <div class=\"swiper-wrapper\">\n                                                    <div class=\"swiper-slide\">\n                                            <div class=\"card card-carousel-5\">\n        <div class=\"img-container\">\n                        <img decoding=\"async\" src=\"https:\/\/mines-urbaines.eu\/wp-content\/uploads\/2025\/06\/img-chaire-mines-urbaines-projet-1.webp\" alt=\"Img Chaire Mines Urbaines Projet 1\">\n    \n        <\/div>\n        <div class=\"content\">\n                            <div class=\"legend\">Alexis Barthet, Post-doctoral researcher at Mines Paris \u2013 PSL<\/div>\n                        <h3 class=\"subtitle\">Sampling and characterization of waste electrical and electronic equipment (WEEE).<\/h3>\n                                        <div class=\"action\">\n                                                                <a href=\"https:\/\/app.storyfox.io\/preview\/public\/65c49fda9bd9b4000787e5a6.65e9c9d8ba760a0008179786\"\n       class=\"link link-secondary\"\n                            target=\"_blank\" rel=\"nofollow noopener\"\n                >\n        <span class=\"link_title\"><\/span>\n                                    <span class=\"link_icon\"><svg width=\"20\" height=\"20\" viewBox=\"0 0 20 20\" fill=\"none\" xmlns=\"http:\/\/www.w3.org\/2000\/svg\"><rect width=\"20\" height=\"20\" rx=\"10\" fill=\"#002E50\"\/><path d=\"M15.3536 10.3536C15.5488 10.1583 15.5488 9.84171 15.3536 9.64645L12.1716 6.46447C11.9763 6.2692 11.6597 6.2692 11.4645 6.46447C11.2692 6.65973 11.2692 6.97631 11.4645 7.17157L14.2929 10L11.4645 12.8284C11.2692 13.0237 11.2692 13.3403 11.4645 13.5355C11.6597 13.7308 11.9763 13.7308 12.1716 13.5355L15.3536 10.3536ZM5 10V10.5H15V10V9.5H5V10Z\" fill=\"white\"\/><\/svg><\/span>\n                        <\/a>\n\n                <\/div>\n                    <\/div>\n    <\/div>\n\n                            <\/div>\n                                                    <div class=\"swiper-slide\">\n                                            <div class=\"card card-carousel-5\">\n        <div class=\"img-container\">\n                        <img decoding=\"async\" src=\"https:\/\/mines-urbaines.eu\/wp-content\/uploads\/2025\/09\/Morvan-1-2048x1536-1-e1758723339668.jpg\" alt=\"\">\n    \n        <\/div>\n        <div class=\"content\">\n                            <div class=\"legend\">Morvan Gaudin<\/div>\n                        <h3 class=\"subtitle\">Extraction of antimony from WEEE.<\/h3>\n                                        <div class=\"action\">\n                                                                <a href=\" 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class=\"post-item_content-meta\">\n                                            <div class=\"date\">05.09.2025<\/div>\n                                    <\/div>\n                        <h3 class=\"post-item_content-title\">\n                <a href=\"https:\/\/mines-urbaines.eu\/en\/soutenance-de-these-de-nicolas-neve\/\">Internal Seminar 2025<\/a>\n            <\/h3>\n                            <div class=\"post-item_content-excerpt\">A friendly event to explore science from a different perspective, at the heart of Chimie ParisTech <a href=\"https:\/\/mines-urbaines.eu\/en\/soutenance-de-these-de-nicolas-neve\/\" class=\"read-more\">Read More<\/a><\/div>\n                        <div class=\"post-item_content-action\">\n                                                                    <a href=\"https:\/\/mines-urbaines.eu\/en\/soutenance-de-these-de-nicolas-neve\/\"\n       class=\"link link-secondary\"\n                >\n        <span class=\"link_title\">En savoir 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