{"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":"processamento-de-cadmio","status":"publish","type":"solutions","link":"https:\/\/www.jxscmachine.com\/pt\/solutions\/cadmium-processing\/","title":{"rendered":"C\u00e1dmio"},"content":{"rendered":"
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\"C\u00e1dmio\"<\/div>\n\t\t<\/figure>\n\t<\/div>\n
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Tipo<\/strong>
\nElemento (Minerais\/res\u00edduos de)<\/p>\n

Classifica\u00e7\u00e3o de minerais<\/strong>
\nSulfureto<\/p>\n

F\u00f3rmula qu\u00edmica<\/strong>
\n(Zn,Fe)S (esfalerite)<\/p>\n

Dureza de Mohs<\/strong>
\n3.5-4<\/p>\n\n\t\t<\/div>\n\t<\/div>\n<\/div><\/div><\/div>

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Sistema de cristais<\/strong>
\nIsom\u00e9trico<\/p>\n

Cor<\/strong>
\nCastanho, amarelo, vermelho, verde, preto<\/p>\n

Brilho<\/strong>
\nAdamantina, resinosa, gordurosa<\/p>\n

Fratura<\/strong>
\nDesigual, conchoidal<\/p>\n\n\t\t<\/div>\n\t<\/div>\n<\/div><\/div><\/div><\/div>

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Descri\u00e7\u00e3o<\/h2><\/div><\/div>\n\t
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O c\u00e1dmio (Cd) \u00e9 um elemento met\u00e1lico muito macio, branco-prateado, que pode ser cortado com uma faca. O c\u00e1dmio tem muitas semelhan\u00e7as qu\u00edmicas com o zinco e \u00e9 frequentemente recuperado do min\u00e9rio prim\u00e1rio de zinco esfalerite. A utiliza\u00e7\u00e3o mais importante do c\u00e1dmio \u00e9 na produ\u00e7\u00e3o de baterias de n\u00edquel-c\u00e1dmio (Ni-Cad).<\/p>\n\n\t\t<\/div>\n\t<\/div>\n

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Rela\u00e7\u00e3o com a explora\u00e7\u00e3o mineira<\/h2><\/div><\/div>\n\t
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O c\u00e1dmio raramente aparece na natureza e \u00e9 mais frequentemente obtido atrav\u00e9s da sua remo\u00e7\u00e3o de metais de zinco durante o processo de refina\u00e7\u00e3o. O c\u00e1dmio \u00e9, portanto, produzido nos pa\u00edses onde o zinco \u00e9 refinado, n\u00e3o necessariamente nos pa\u00edses onde o min\u00e9rio de zinco \u00e9 extra\u00eddo. A China, o Jap\u00e3o e a Coreia s\u00e3o os maiores produtores mundiais, seguidos pelo M\u00e9xico, os Estados Unidos, os Pa\u00edses Baixos, a \u00cdndia, o Reino Unido, o Peru e a Alemanha. Quinze outros pa\u00edses produzem quantidades menores.<\/p>\n\n\t\t<\/div>\n\t<\/div>\n

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Utiliza\u00e7\u00f5es<\/h2><\/div><\/div>\n\t
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A utiliza\u00e7\u00e3o mais importante do c\u00e1dmio \u00e9 a produ\u00e7\u00e3o de pilhas de n\u00edquel-c\u00e1dmio (\"Ni-Cad\"). Cerca de tr\u00eas quartos do c\u00e1dmio consumido anualmente s\u00e3o utilizados no fabrico de pilhas. As pilhas de n\u00edquel-c\u00e1dmio s\u00e3o recarreg\u00e1veis e t\u00eam sido amplamente utilizadas em telem\u00f3veis, ferramentas el\u00e9ctricas manuais sem fios, m\u00e1quinas fotogr\u00e1ficas, computadores port\u00e1teis e uma grande variedade de produtos dom\u00e9sticos. Estas aplica\u00e7\u00f5es representam a maior parte das pilhas de Ni-c\u00e1dmio produzidas. As restantes representam baterias utilizadas para o fornecimento de energia de emerg\u00eancia em quartos de hospital, para luzes de emerg\u00eancia, centrais telef\u00f3nicas, 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

O c\u00e1dmio tem tamb\u00e9m a propriedade f\u00edsica de poder absorver neutr\u00f5es. Por isso, \u00e9 utilizado nas barras de controlo dos reactores nucleares para amortecer a rea\u00e7\u00e3o nuclear e manter as reac\u00e7\u00f5es de cis\u00e3o sob controlo.<\/p>\n

A China \u00e9 o maior consumidor mundial de c\u00e1dmio, principalmente para o fabrico de baterias. O consumo mundial de c\u00e1dmio \u00e9 est\u00e1vel ou est\u00e1 a diminuir ligeiramente, uma vez que a sua utiliza\u00e7\u00e3o est\u00e1 a tornar-se mais restrita devido a regras ambientais.<\/p>\n

Os compostos sol\u00faveis de c\u00e1dmio s\u00e3o venenosos, embora as formas met\u00e1licas e de sulfureto n\u00e3o sejam sol\u00faveis e, por conseguinte, n\u00e3o sejam muito venenosas.<\/p>\n

MEC em destaque<\/p>\n

Jamboree Escoteiro Mundial 2019
\nA equipa e os volunt\u00e1rios do MEC e do SME est\u00e3o a organizar um stand no 24\u00ba Jamboree Mundial de Escuteiros nas instala\u00e7\u00f5es da Reserva Nacional de Escuteiros da Fam\u00edlia Summit Bechtel da BSA na Virg\u00ednia Ocidental, de 22 de julho a 2 de agosto de 2019. Saiba mais aqui. Procure imagens no Facebook e no Twitter.<\/p>\n

Saiba mais sobre o distintivo de m\u00e9rito \"Minera\u00e7\u00e3o na Sociedade\", incluindo como se tornar um conselheiro, aqui.<\/p>\n\n\t\t<\/div>\n\t<\/div>\n

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Casos relacionados<\/h2><\/div><\/div><\/div><\/div><\/div><\/div>\n<\/div>","protected":false},"excerpt":{"rendered":"Tipo Elemento (Minerais\/res\u00edduos de) Classifica\u00e7\u00e3o do mineral Sulfureto F\u00f3rmula qu\u00edmica (Zn,Fe)S (esfalerite) Dureza de Mohs 3,5-4 Sistema cristalino Cor Isom\u00e9trica Castanho, amarelo, vermelho, verde, preto Brilho Adamantino, resinoso, gorduroso Fratura Desigual, conchoidal Descri\u00e7\u00e3o O c\u00e1dmio (Cd) \u00e9 um elemento met\u00e1lico muito macio, branco-prateado que pode ser cortado com uma faca. O c\u00e1dmio tem muitas semelhan\u00e7as qu\u00edmicas com o zinco e ... Continuar a ler C\u00e1dmio<\/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\/pt\/solucoes\/processamento-de-cadmio\/\" \/>\n<meta property=\"og:locale\" content=\"pt_PT\" \/>\n<meta property=\"og:type\" content=\"article\" \/>\n<meta property=\"og:title\" content=\"Cadmium Processing | Equipment, Flow, Cases - 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