{"id":6972,"date":"2019-08-23T09:58:56","date_gmt":"2019-08-23T01:58:56","guid":{"rendered":"https:\/\/www.jxscmachine.com\/?post_type=solutions&p=6972"},"modified":"2019-09-25T15:31:32","modified_gmt":"2019-09-25T07:31:32","slug":"processamento-de-cesio","status":"publish","type":"solutions","link":"https:\/\/www.jxscmachine.com\/pt\/solutions\/cesium-processing\/","title":{"rendered":"C\u00e9sio"},"content":{"rendered":"
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\"C\u00e9sio\"<\/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>
\nSilicato<\/p>\n

F\u00f3rmula qu\u00edmica<\/strong>
\nCs(Si2Al)O6.nH2O<\/p>\n

Dureza de Mohs<\/strong>
\n6.5 - 7<\/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>
\nNormalmente incolor, mas tamb\u00e9m branco, cinzento, rosa, azul ou violeta<\/p>\n

Brilho<\/strong>
\nV\u00edtreo, gorduroso<\/p>\n

Fratura<\/strong>
\nconchoidal, irregular<\/p>\n\n\t\t<\/div>\n\t<\/div>\n<\/div><\/div><\/div><\/div>

<\/div>

Descri\u00e7\u00e3o<\/h2><\/div><\/div>\n\t
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O c\u00e9sio (Cs) \u00e9 um elemento met\u00e1lico ceroso, prateado-dourado, que \u00e9 o mais macio de todos os metais. O c\u00e9sio \u00e9 um dos tr\u00eas metais (juntamente com o g\u00e1lio e o merc\u00fario) que s\u00e3o l\u00edquidos \u00e0 temperatura ambiente ou pr\u00f3xima desta.
\nO c\u00e9sio \u00e9 um metal muito reativo que, quando misturado com \u00e1gua fria, produz uma rea\u00e7\u00e3o explosiva. O seu ponto de fus\u00e3o \u00e9 t\u00e3o baixo que se derrete se o segurarmos na m\u00e3o. No entanto, por ser t\u00e3o reativo, pode queimar gravemente a pele, pelo que deve ser manuseado com muito cuidado.
\nApenas alguns milhares de quilogramas de c\u00e9sio s\u00e3o utilizados todos os anos. V\u00e1rios minerais cont\u00eam quantidades significativas de c\u00e9sio, incluindo a mica, o berilo, o feldspato, a petalite e a polucite, que \u00e9 o mineral de onde \u00e9 normalmente extra\u00eddo.<\/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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A maior parte do c\u00e9sio \u00e9 processada a partir do mineral pollucite, que se encontra em pegmatitos. A extra\u00e7\u00e3o da polucite \u00e9 um processo seletivo e de muito pequena escala.
\nOs Estados Unidos t\u00eam dep\u00f3sitos de min\u00e9rio de c\u00e9sio de baixa qualidade no Dakota do Sul e no Maine, cuja explora\u00e7\u00e3o n\u00e3o \u00e9 atualmente econ\u00f3mica. Como resultado, os EUA importam 100% do c\u00e9sio que utilizam, principalmente do Canad\u00e1. Outros pa\u00edses produtores de c\u00e9sio s\u00e3o a \u00c1frica do Sul e o Zimbabu\u00e9.<\/p>\n\n\t\t<\/div>\n\t<\/div>\n

<\/div>

Utiliza\u00e7\u00f5es<\/h2><\/div><\/div>\n\t
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O c\u00e9sio e os compostos de c\u00e9sio t\u00eam uma s\u00e9rie de utiliza\u00e7\u00f5es e aplica\u00e7\u00f5es interessantes. Por exemplo, s\u00e3o utilizados como catalisadores em reac\u00e7\u00f5es qu\u00edmicas. Como \u00e9 facilmente ionizado pela luz, o c\u00e9sio met\u00e1lico \u00e9 utilizado em c\u00e9lulas fotoel\u00e9ctricas e detectores de infravermelhos. (Um elemento que \u00e9 ionizado transforma-se de um elemento de carga neutra num i\u00e3o de carga el\u00e9ctrica). Os compostos de c\u00e9sio s\u00e3o utilizados em pilhas alcalinas especializadas, concebidas para funcionarem em climas abaixo de zero. O carbonato de c\u00e9sio \u00e9 utilizado na produ\u00e7\u00e3o de vidro especial e de produtos de vidro.<\/p>\n

O rel\u00f3gio mais preciso do mundo, o \"rel\u00f3gio at\u00f3mico\", mede o tempo com base na vibra\u00e7\u00e3o muito precisa dos electr\u00f5es da camada exterior do \u00e1tomo de c\u00e9sio. Este rel\u00f3gio tem uma precis\u00e3o de 5 segundos a cada 300 anos!<\/p>\n

O c\u00e9sio-137 \u00e9 radioativo e pode ser utilizado na radioterapia para tratar certos tipos de cancro.<\/p>\n

Os engenheiros de viagens espaciais descobriram que a queima de c\u00e9sio no espa\u00e7o \u00e9 uma forma muito eficiente de combust\u00edvel. Est\u00e1 determinado que \u00e9 140 vezes mais eficiente do que qualquer outro combust\u00edvel.<\/p>\n\n\t\t<\/div>\n\t<\/div>\n

<\/div>

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 Silicato F\u00f3rmula qu\u00edmica Cs(Si2Al)O6.nH2O Dureza de Mohs 6.5 - 7 Sistema cristalino Cor Isom\u00e9trica Normalmente incolor, tamb\u00e9m branco, cinzento, rosa, azul ou violeta Brilho V\u00edtreo, gorduroso Fratura conchoidal, irregular Descri\u00e7\u00e3o O c\u00e9sio (Cs) \u00e9 um elemento met\u00e1lico ceroso, prateado-dourado, que \u00e9 o mais macio de todos os metais. O c\u00e9sio \u00e9 um dos tr\u00eas ... Continuar a ler C\u00e9sio<\/span><\/a>","protected":false},"author":1,"featured_media":6973,"parent":0,"menu_order":54,"comment_status":"open","ping_status":"open","template":"","format":"standard","meta":{"_acf_changed":false,"ngg_post_thumbnail":0,"footnotes":""},"class_list":["post-6972","solutions","type-solutions","status-publish","format-standard","has-post-thumbnail","hentry"],"acf":[],"yoast_head":"\nCesium Processing | Equipment, Process Flow, Cases - JXSC Machine<\/title>\n<meta name=\"description\" content=\"Cesium 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-cesio\/\" \/>\n<meta property=\"og:locale\" content=\"pt_PT\" \/>\n<meta property=\"og:type\" content=\"article\" \/>\n<meta property=\"og:title\" content=\"Cesium Processing | Equipment, Process Flow, Cases - 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