{"id":255,"date":"2010-12-29T10:45:05","date_gmt":"2010-12-29T10:45:05","guid":{"rendered":"http:\/\/blogs.thesocialmedia.com\/leblogenergie\/2010\/12\/29\/le-regime-chinois-poursuit-lorganisation-de-la-penurie-en-terres-rares\/"},"modified":"2012-07-12T12:23:36","modified_gmt":"2012-07-12T12:23:36","slug":"le-regime-chinois-poursuit-lorganisation-de-la-penurie-en-terres-rares","status":"publish","type":"post","link":"https:\/\/blogs.thesocialmedia.com\/leblogenergie\/2010\/12\/29\/le-regime-chinois-poursuit-lorganisation-de-la-penurie-en-terres-rares\/","title":{"rendered":"Le r\u00e9gime chinois poursuit l&rsquo;organisation de la p\u00e9nurie mondiale en terres rares"},"content":{"rendered":"<p>&#160;Apr\u00e8s avoir fait fermer pratiquement toutes les mines de terres rares dans le monde par des politiques de dumping durant deux d\u00e9cennies, l&#039;Administration chinoise, avec un gros tiers des r\u00e9serves mondiales (<a href=\"http:\/\/blogs.thesocialmedia.com\/leblogenergie\/files\/2012\/07\/toshiba-pourrait-proposer-des-aimants-permanents-au-samarium-cobalt-pour-les-moteurs-de-vehicules-el.html_.png\" target=\"_self\">LIRE<\/a>), est arriv\u00e9e \u00e0 ma\u00eetriser 97% des fournitures de ces m\u00e9taux. Cette stupide politique volontaire ou involontaire de prise continue de parts de march\u00e9 (allez savoir?) a finalement conduit les Dirigeants du Parti \u00e0 constater en 2010 que le pr\u00e9l\u00e8vement sur les r\u00e9serves chinoises devenait trop important et qu&#039;il fallait r\u00e8glementairement limiter les exportations. Le voisin japonais, objet par ailleurs d&#039;une querelle muscl\u00e9e pour la possession d&#039;ilots dans la Mer de Chine, \u00e9tant le plus gros importateur, la mise en place de restrictions dans ses approvisionnements en m\u00e9taux de grande importance industrielle s&#039;av\u00e9rait \u00eatre politiquement opportune. C&#039;est donc <span style=\"color: #0000bf\"><strong>une diminution de 35% des exportations chinoises de terres rares<\/strong><\/span> qui vient d&#039;\u00eatre d\u00e9cid\u00e9e pour la premi\u00e8re allocation annuelle en 2011. Elle passerait de 22 mille tonnes en 2010 \u00e0 14 mille tonnes en 2011. Une deuxi\u00e8me allocation pour la fin 2011 pourrait \u00eatre par la suite d\u00e9cid\u00e9e, comme en 2010 o\u00f9 elle avait atteint huit mille tonnes.<\/p>\n<p><a href=\"http:\/\/clabedan.typepad.com\/.a\/6a00d83451b18369e20147e11a94b4970b-pi\"><img decoding=\"async\" alt=\"Terres rares applications\" class=\"asset  asset-image at-xid-6a00d83451b18369e20147e11a94b4970b\" src=\"http:\/\/blogs.thesocialmedia.com\/leblogenergie\/files\/2012\/07\/6a00d83451b18369e20147e11a94b4970b-450wi.jpg\" style=\"width: 450px\" \/><\/a> <\/p>\n<p>L&#039;Admistration chinoise envisagerait \u00e9galement d&#039;augmenter les taxes \u00e0 l&#039;exportation sur certains de ces \u00e9l\u00e9ments. Le N\u00e9odyme, composant essentiel des aimants permanents (FIG.) fait d\u00e9j\u00e0 l&#039;objet d&#039;une telle taxe. Le Pras\u00e9odyme et le Dysprosium composants essentiels de ces aimants Ne-Fe-B font partie des \u00e9l\u00e9ments les plus recherch\u00e9s.<\/p>\n<p>Les r\u00e9actions probables \u00e0 cette p\u00e9nurie organis\u00e9e vont \u00eatre de plusieurs ordres:<\/p>\n<p>&#8211; Tout d&#039;abord une tr\u00e8s forte augmentation des prix: le prix de l&#039;oxyde de n\u00e9odyme aurait \u00e9t\u00e9 multipli\u00e9 par plus de quatre dans le courant de 2009,<\/p>\n<p>&#8211; puis la d\u00e9cision de r\u00e9activer les mines hors de Chine comme aux \u00c9tats-Unis, en Australie, en Mongolie&#8230;ainsi que la cr\u00e9ation d&#039;associations pour d\u00e9velopper les transformations m\u00e9tallurgiques en aval. En parall\u00e8le le recyclage (logistique, m\u00e9tallurgie) va s&#039;organiser,<\/p>\n<p>&#8211; ensuite op\u00e9rer de nombreuses substitutions: batteries Ni-MH remplac\u00e9es par des batteries au Lithium dans les v\u00e9hicules hybrides, utilisation de p\u00e2tes de polissage des verres \u00e0 base d&#039;oxydes de zirconium, \u00e9largissement les applications des aimants au Samarium-Cobalt ou d\u00e9veloppement de nouveaux moteurs pas-\u00e0-pas sans terres rares,<\/p>\n<p>&#8211; mais aussi r\u00e9duire les teneurs en n\u00e9odyme et pras\u00e9odyme dans les alliages pour applications autres que les aimants permanents.<\/p>\n<p>&#160;Le monde industriel va apprendre \u00e0 se passer des fournitures chinoises de terres rares&#8230;c&#039;est une bonne le\u00e7on vers plus de prudence et de sagesse strat\u00e9gique.<\/p>\n<p><a href=\"http:\/\/www.bloomberg.com\/news\/2010-12-28\/china-cuts-first-round-rare-earth-export-quotas-by-11-correct-.html\" target=\"_blank\">LIRE<\/a> le papier le moins nul du jour sur le sujet.<\/p>\n<p>Le 29 D\u00e9cembre 2010<\/p>\n","protected":false},"excerpt":{"rendered":"<p>&#160;Apr\u00e8s avoir fait fermer pratiquement toutes les mines de terres rares dans le monde par des politiques de dumping durant deux d\u00e9cennies, l&#039;Administration chinoise, avec un gros tiers des r\u00e9serves mondiales (LIRE), est arriv\u00e9e \u00e0 ma\u00eetriser 97% des fournitures de ces m\u00e9taux. Cette stupide politique volontaire ou involontaire de prise continue de parts de march\u00e9 [&hellip;]<\/p>\n","protected":false},"author":341,"featured_media":22407,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[5],"tags":[],"class_list":["post-255","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-actualites"],"yoast_head":"<!-- This site is optimized with the Yoast SEO plugin v26.0 - https:\/\/yoast.com\/wordpress\/plugins\/seo\/ -->\n<title>Le r\u00e9gime chinois poursuit l&#039;organisation de la p\u00e9nurie mondiale en terres rares - leblogenergie.com<\/title>\n<meta name=\"robots\" content=\"index, follow, max-snippet:-1, max-image-preview:large, max-video-preview:-1\" \/>\n<link rel=\"canonical\" href=\"https:\/\/blogs.thesocialmedia.com\/leblogenergie\/2010\/12\/29\/le-regime-chinois-poursuit-lorganisation-de-la-penurie-en-terres-rares\/\" \/>\n<meta name=\"twitter:card\" content=\"summary_large_image\" \/>\n<meta name=\"twitter:title\" content=\"Le r\u00e9gime chinois poursuit l&#039;organisation de la p\u00e9nurie mondiale en terres rares - leblogenergie.com\" \/>\n<meta name=\"twitter:description\" content=\"&#160;Apr\u00e8s avoir fait fermer pratiquement toutes les mines de terres rares dans le monde par des politiques de dumping durant deux d\u00e9cennies, l&#039;Administration chinoise, avec un gros tiers des r\u00e9serves mondiales (LIRE), est arriv\u00e9e \u00e0 ma\u00eetriser 97% des fournitures de ces m\u00e9taux. 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