{"id":6958,"date":"2019-08-23T09:34:22","date_gmt":"2019-08-23T01:34:22","guid":{"rendered":"https:\/\/www.jxscmachine.com\/?post_type=solutions&p=6958"},"modified":"2019-09-25T15:38:56","modified_gmt":"2019-09-25T07:38:56","slug":"traitement-du-cadmium","status":"publish","type":"solutions","link":"https:\/\/www.jxscmachine.com\/fr\/solutions\/cadmium-processing\/","title":{"rendered":"Cadmium"},"content":{"rendered":"
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\"Cadmium\"<\/div>\n\t\t<\/figure>\n\t<\/div>\n
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Type<\/strong>
\n\u00c9l\u00e9ment (Min\u00e9raux\/ Minerais de)<\/p>\n

Classification des min\u00e9raux<\/strong>
\nSulfure<\/p>\n

Formule chimique<\/strong>
\n(Zn,Fe)S (sphal\u00e9rite)<\/p>\n

Duret\u00e9 Mohs<\/strong>
\n3.5-4<\/p>\n\n\t\t<\/div>\n\t<\/div>\n<\/div><\/div><\/div>

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Syst\u00e8me de cristaux<\/strong>
\nIsom\u00e9trique<\/p>\n

Couleur<\/strong>
\nMarron, jaune, rouge, vert, noir<\/p>\n

\u00c9clat<\/strong>
\nAdamantine, r\u00e9sineux, gras<\/p>\n

Fracture<\/strong>
\nIn\u00e9gale, concho\u00efdale<\/p>\n\n\t\t<\/div>\n\t<\/div>\n<\/div><\/div><\/div><\/div>

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Description<\/h2><\/div><\/div>\n\t
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Le cadmium (Cd) est un \u00e9l\u00e9ment m\u00e9tallique tr\u00e8s doux, blanc argent\u00e9, qui peut \u00eatre coup\u00e9 avec un couteau. Le cadmium pr\u00e9sente de nombreuses similitudes chimiques avec le zinc et est souvent r\u00e9cup\u00e9r\u00e9 \u00e0 partir du minerai de zinc primaire, la sphal\u00e9rite. L'utilisation la plus importante du cadmium est la production de piles nickel-cadmium (Ni-Cad).<\/p>\n\n\t\t<\/div>\n\t<\/div>\n

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Relation avec l'exploitation mini\u00e8re<\/h2><\/div><\/div>\n\t
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Le cadmium est rarement pr\u00e9sent dans la nature et provient le plus souvent de son \u00e9limination des m\u00e9taux de zinc au cours du processus de raffinage. Le cadmium est donc produit dans les pays o\u00f9 le zinc est raffin\u00e9, et pas n\u00e9cessairement dans les pays o\u00f9 le minerai de zinc est extrait. La Chine, le Japon et la Cor\u00e9e sont les principaux producteurs mondiaux, suivis du Mexique, des \u00c9tats-Unis, des Pays-Bas, de l'Inde, du Royaume-Uni, du P\u00e9rou et de l'Allemagne. Quinze autres pays produisent des quantit\u00e9s moindres.<\/p>\n\n\t\t<\/div>\n\t<\/div>\n

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Utilisations<\/h2><\/div><\/div>\n\t
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L'utilisation la plus importante du cadmium est la production de piles nickel-cadmium (\"Ni-Cad\"). Environ les trois quarts du cadmium consomm\u00e9 annuellement sont utilis\u00e9s pour fabriquer des piles. Les piles nickel-cadmium sont rechargeables et sont largement utilis\u00e9es dans les t\u00e9l\u00e9phones portables, les outils \u00e9lectriques sans fil, les appareils photo, les ordinateurs portables et une grande vari\u00e9t\u00e9 de produits m\u00e9nagers. Ces applications repr\u00e9sentent la majorit\u00e9 des piles Ni-Cad produites. Le reste repr\u00e9sente les piles utilis\u00e9es pour l'alimentation \u00e9lectrique d'urgence dans les chambres d'h\u00f4pital, pour les \u00e9clairages de secours, les centraux t\u00e9l\u00e9phoniques, etc.<\/p>\n

Cadmium is useful in a small number of other applications. Cadmium sulfide (also called cadmium yellow) is used as a paint pigment. Cadmium is used to make low-temperature melting alloys, such as solder and Wood\u2019s Metal for indoor sprinkler systems. The latter is an alloy of 50%Bi, 25%Pb, 12.5% Sn, and 12.5%Cd which melts at about 160 degrees Fahrenheit, the temperature of a very hot shower. Cadmium compounds are used both in black and white and color television tubes. It is used as a stabilizing compound in plastics.<\/p>\n

Le cadmium a \u00e9galement la propri\u00e9t\u00e9 physique de pouvoir absorber les neutrons. C'est pourquoi il est utilis\u00e9 dans les barres de contr\u00f4le des r\u00e9acteurs nucl\u00e9aires pour amortir la r\u00e9action nucl\u00e9aire et maintenir les r\u00e9actions de fission sous contr\u00f4le.<\/p>\n

La Chine est le plus grand consommateur de cadmium au monde, principalement pour la fabrication de batteries. La consommation mondiale de cadmium est stable ou en l\u00e9g\u00e8re baisse, car son utilisation est de plus en plus restreinte en raison des r\u00e8gles environnementales.<\/p>\n

Les compos\u00e9s solubles du cadmium sont toxiques, bien que les formes m\u00e9talliques et les sulfures ne soient pas solubles et donc peu toxiques.<\/p>\n

Pleins feux sur la MEC<\/p>\n

Jamboree Scout Mondial 2019
\nLe personnel et les b\u00e9n\u00e9voles de la MEC et des PME tiennent un stand lors du 24e Jamboree scout mondial qui se d\u00e9roule dans les installations de la r\u00e9serve nationale scoute Summit Bechtel Family BSA en Virginie-Occidentale, du 22 juillet au 2 ao\u00fbt 2019. Pour en savoir plus, cliquez ici. Regardez les photos sur Facebook et Twitter.<\/p>\n

Pour en savoir plus sur l'insigne de m\u00e9rite Exploitation mini\u00e8re dans la soci\u00e9t\u00e9, y compris sur la fa\u00e7on de devenir conseiller, cliquez ici.<\/p>\n\n\t\t<\/div>\n\t<\/div>\n

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Affaires connexes<\/h2><\/div><\/div><\/div><\/div><\/div><\/div>\n<\/div>","protected":false},"excerpt":{"rendered":"Type \u00c9l\u00e9ment (min\u00e9raux\/ressources min\u00e9rales) Classification min\u00e9rale Sulfure Formule chimique (Zn,Fe)S (sphal\u00e9rite) Duret\u00e9 Mohs 3,5-4 Syst\u00e8me cristallin Isom\u00e9trique Couleur Brun, jaune, rouge, vert, noir \u00c9clat Adamantin, r\u00e9sineux, gras Fracture In\u00e9gale, concho\u00efdale Description Le cadmium (Cd) est un \u00e9l\u00e9ment m\u00e9tallique tr\u00e8s doux, blanc argent\u00e9, qui peut \u00eatre coup\u00e9 avec un couteau. Le cadmium pr\u00e9sente de nombreuses similitudes chimiques avec le zinc et ... Continuer la lecture de Cadmium<\/span><\/a>","protected":false},"author":1,"featured_media":6959,"parent":0,"menu_order":65,"comment_status":"open","ping_status":"open","template":"","format":"standard","meta":{"_acf_changed":false,"ngg_post_thumbnail":0,"footnotes":""},"class_list":["post-6958","solutions","type-solutions","status-publish","format-standard","has-post-thumbnail","hentry"],"acf":[],"yoast_head":"\nCadmium Processing | Equipment, Flow, Cases - JXSC Machine<\/title>\n<meta name=\"description\" content=\"Cadmium processing description from its geology mineral property to how to extract mineral from rock and placer deposit, related processing plant flow chart and layout design.\" \/>\n<meta name=\"robots\" content=\"index, follow, max-snippet:-1, max-image-preview:large, max-video-preview:-1\" \/>\n<link rel=\"canonical\" href=\"https:\/\/www.jxscmachine.com\/fr\/solutions\/traitement-du-cadmium\/\" \/>\n<meta property=\"og:locale\" content=\"fr_FR\" \/>\n<meta property=\"og:type\" content=\"article\" \/>\n<meta property=\"og:title\" content=\"Cadmium Processing | Equipment, Flow, Cases - 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