{"id":10179,"date":"2026-04-29T05:36:00","date_gmt":"2026-04-29T04:36:00","guid":{"rendered":"https:\/\/robotechno.casciani.fr\/?p=10179"},"modified":"2026-04-23T05:37:40","modified_gmt":"2026-04-23T04:37:40","slug":"comment-cest-fait-lor-lincroyable-processus-de-transformation-du-minerai-dor-en-lingots","status":"publish","type":"post","link":"https:\/\/robotechno.casciani.fr\/?p=10179","title":{"rendered":"Comment c\u2019est fait : L\u2019Or \u2013 L&rsquo;incroyable processus de transformation du minerai d&rsquo;or en lingots !"},"content":{"rendered":"\n<figure class=\"wp-block-embed is-type-video is-provider-youtube wp-block-embed-youtube wp-embed-aspect-16-9 wp-has-aspect-ratio\"><div class=\"wp-block-embed__wrapper\">\n<iframe loading=\"lazy\" title=\"Comment c\u2019est fait : L\u2019Or \u2013 L&#039;incroyable processus de transformation du minerai d&#039;or en lingots !\" width=\"474\" height=\"267\" src=\"https:\/\/www.youtube.com\/embed\/2VkGBJ0cGdE?feature=oembed\" frameborder=\"0\" allow=\"accelerometer; autoplay; clipboard-write; encrypted-media; gyroscope; picture-in-picture; web-share\" referrerpolicy=\"strict-origin-when-cross-origin\" allowfullscreen><\/iframe>\n<\/div><\/figure>\n\n\n\n<p class=\"wp-block-paragraph\">L\u2019or est l\u2019un des m\u00e9taux les plus pr\u00e9cieux au monde\u2026 mais pour obtenir seulement quelques grammes, il faut traiter des tonnes de roche &#x26cf;&#xfe0f;<br \/>Un chiffre qui donne le vertige.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">Mais d\u2019o\u00f9 vient r\u00e9ellement l\u2019or ?<br \/>Comment ce m\u00e9tal a-t-il \u00e9t\u00e9 cr\u00e9\u00e9\u2026 bien avant la naissance de la Terre ?<br \/>Et surtout, comment passe-t-on d\u2019une simple roche \u00e0 un lingot pur \u00e0 99,99% ?<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">Dans ce documentaire, vous allez d\u00e9couvrir le voyage incroyable de l\u2019or, depuis les explosions cosmiques jusqu\u2019aux coffres des banques.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">Au programme :<br \/>&#x1f30c; Origine de l\u2019or dans les supernovas<br \/>&#x1f30d; Formation des gisements dans la cro\u00fbte terrestre<br \/>&#x1f6f0;&#xfe0f; Recherche et exploration des mines<br \/>&#x1f69c; Extraction \u00e0 ciel ouvert et souterraine<br \/>&#x2699;&#xfe0f; Concassage et broyage du minerai<br \/>&#x1f9ea; Extraction chimique (cyanuration, flottation\u2026)<br \/>&#x1f525; Fusion et cr\u00e9ation des lingots<br \/>&#x26a1; Raffinage \u00e9lectrolytique ultra-pr\u00e9cis<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">&#x1f449; R\u00e9sultat : un m\u00e9tal pur qui symbolise richesse et pouvoir depuis des mill\u00e9naires.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">Mais derri\u00e8re chaque lingot se cache une r\u00e9alit\u00e9 &#x1f447;<br \/>&#x1f4ac; Apr\u00e8s avoir vu ce processus, trouvez-vous l\u2019or encore plus impressionnant ?<br \/>Ou finalement\u2026 juste un minerai comme un autre ?<\/p>\n","protected":false},"excerpt":{"rendered":"<p>L\u2019or est l\u2019un des m\u00e9taux les plus pr\u00e9cieux au monde\u2026 mais pour obtenir seulement quelques grammes, il faut traiter des tonnes de roche &#x26cf;&#xfe0f;Un chiffre qui donne le vertige. Mais d\u2019o\u00f9 vient r\u00e9ellement l\u2019or ?Comment ce m\u00e9tal a-t-il \u00e9t\u00e9 cr\u00e9\u00e9\u2026 bien avant la naissance de la Terre ?Et surtout, comment passe-t-on d\u2019une simple roche \u00e0 &hellip; <a href=\"https:\/\/robotechno.casciani.fr\/?p=10179\" class=\"more-link\">Continuer la lecture de <span class=\"screen-reader-text\">Comment c\u2019est fait : L\u2019Or \u2013 L&rsquo;incroyable processus de transformation du minerai d&rsquo;or en lingots !<\/span>  <span class=\"meta-nav\">&rarr;<\/span><\/a><\/p>\n","protected":false},"author":1,"featured_media":0,"comment_status":"closed","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"_crdt_document":"{\"document\":\"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