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{"id":91,"date":"2018-05-04T14:31:08","date_gmt":"2018-05-04T13:31:08","guid":{"rendered":"http:\/\/cursolusegil.webs.upv.es\/?p=91"},"modified":"2018-05-09T11:45:10","modified_gmt":"2018-05-09T10:45:10","slug":"cuando-utilizar-la-cristalizacion","status":"publish","type":"post","link":"https:\/\/cursolusegil.blogs.upv.es\/?p=91","title":{"rendered":"INTER\u00c9S DE LA OPERACI\u00d3N DE CRISTALIZACI\u00d3N"},"content":{"rendered":"La CRISTALIZACI\u00d3N<\/strong>\u00a0es una operaci\u00f3n unitaria de separaci\u00f3n o purificaci\u00f3n<\/strong> mediante la cual se separa un componente de la fase fluida<\/strong> homog\u00e9nea (disoluci\u00f3n\/vapor\/fusi\u00f3n) en la que est\u00e1 presente, transfiri\u00e9ndolo a una fase s\u00f3lida <\/strong>en forma de cristales que precipitan.<\/p>\nSu inter\u00e9s industrial<\/strong> radica en que es una operaci\u00f3n necesaria para todo compuesto qu\u00edmico que se presenta comercialmente en forma de polvo o cristales, dado que:<\/p>\n1.\u00a0Un cristal formado a partir de una disoluci\u00f3n impura es esencialmente puro.<\/strong><\/p>\n2.\u00a0Proporciona un m\u00e9todo pr\u00e1ctico<\/strong> para la obtenci\u00f3n de sustancias qu\u00edmicas puras en condiciones adecuadas para su envasado, transporte y almacenamiento.<\/p>\nLa mayor\u00eda de aplicaciones industriales<\/strong> aplican la cristalizaci\u00f3n a partir de disoluciones, aunque tambi\u00e9n se pueden obtener cristales a partir de un vapor (caso de la nieve) o de una fusi\u00f3n (caso de los minerales a partir de roca fundida). Cuando la fase fluida de partida es una disoluci\u00f3n la operaci\u00f3n se conoce generalmente como cristalizaci\u00f3n a partir de la (di)soluci\u00f3n<\/strong>.<\/p>\nExisten evidencias de que la cristalizaci\u00f3n a partir de la soluci\u00f3n es una de las Operaciones Unitarias m\u00e1s antiguas<\/strong>, datada entre el a\u00f1o 2500 y 3000 a.C. Evidentemente, en ese tiempo la operaci\u00f3n de cristalizaci\u00f3n distaba mucho de llevarse a cabo en condiciones controladas en un tanque, evaporador o cristalizador continuo, pero el ser humano era capaz de aprovechar las grietas de las rocas o determinadas superficies para obtener sal, o para obtener sacarosa o pigmentos empleando salmueras naturales. De hecho, todav\u00eda existen gran cantidad de salares alrededor del mundo que emplean la evaporaci\u00f3n solar para obtener cristales de cloruro s\u00f3dico. Un ejemplo, es el salar de Uyuni (Bolivia), que aparece a continuaci\u00f3n, y que tiene una extensi\u00f3n de m\u00e1s de 12.000 km\u00b2.<\/p>\n
<\/p>\n
<\/p>\n","protected":false},"excerpt":{"rendered":"
La CRISTALIZACI\u00d3N\u00a0es una operaci\u00f3n unitaria de separaci\u00f3n o purificaci\u00f3n mediante la cual se separa un componente de la fase fluida homog\u00e9nea (disoluci\u00f3n\/vapor\/fusi\u00f3n) en la que est\u00e1 presente, transfiri\u00e9ndolo a una fase s\u00f3lida en forma de cristales que precipitan. Su inter\u00e9s industrial radica en que es una operaci\u00f3n necesaria para todo compuesto qu\u00edmico que se presenta … Seguir leyendo INTER\u00c9S DE LA OPERACI\u00d3N DE CRISTALIZACI\u00d3N<\/span> →<\/span><\/a><\/p>\n","protected":false},"author":831,"featured_media":352,"comment_status":"closed","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[1020865,1024152],"tags":[1023278,1022473,1022813,1022996],"class_list":["post-91","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-contextualizacion","category-cristalizacion","tag-aplicaciones-industriales-de-la-ou","tag-definicion-de-la-ou","tag-historia-de-la-ou","tag-interes-industrial-de-la-ou"],"_links":{"self":[{"href":"https:\/\/cursolusegil.blogs.upv.es\/index.php?rest_route=\/wp\/v2\/posts\/91","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/cursolusegil.blogs.upv.es\/index.php?rest_route=\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/cursolusegil.blogs.upv.es\/index.php?rest_route=\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/cursolusegil.blogs.upv.es\/index.php?rest_route=\/wp\/v2\/users\/831"}],"replies":[{"embeddable":true,"href":"https:\/\/cursolusegil.blogs.upv.es\/index.php?rest_route=%2Fwp%2Fv2%2Fcomments&post=91"}],"version-history":[{"count":0,"href":"https:\/\/cursolusegil.blogs.upv.es\/index.php?rest_route=\/wp\/v2\/posts\/91\/revisions"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/cursolusegil.blogs.upv.es\/index.php?rest_route=\/wp\/v2\/media\/352"}],"wp:attachment":[{"href":"https:\/\/cursolusegil.blogs.upv.es\/index.php?rest_route=%2Fwp%2Fv2%2Fmedia&parent=91"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/cursolusegil.blogs.upv.es\/index.php?rest_route=%2Fwp%2Fv2%2Fcategories&post=91"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/cursolusegil.blogs.upv.es\/index.php?rest_route=%2Fwp%2Fv2%2Ftags&post=91"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}