{"id":57086,"date":"2018-03-09T22:44:54","date_gmt":"2018-03-09T22:44:54","guid":{"rendered":"https:\/\/www.deberes.net\/tesis\/sin-categoria\/determinacion-cromatografica-de-difusividades-moleculares-en-co2-supercritico-puro-y-modificado-con-disolventes-organicos\/"},"modified":"2018-03-09T22:44:54","modified_gmt":"2018-03-09T22:44:54","slug":"determinacion-cromatografica-de-difusividades-moleculares-en-co2-supercritico-puro-y-modificado-con-disolventes-organicos","status":"publish","type":"post","link":"https:\/\/www.deberes.net\/tesis\/ingenieria-y-tecnologia-quimicas\/determinacion-cromatografica-de-difusividades-moleculares-en-co2-supercritico-puro-y-modificado-con-disolventes-organicos\/","title":{"rendered":"Determinaci\u00f3n cromatografica de difusividades moleculares en co2 supercritico puro y modificado con disolventes org\u00e1nicos"},"content":{"rendered":"<h2>Tesis doctoral de <strong> Luis Miguel Gonzalez Prado <\/strong><\/h2>\n<p>Se ha puesto a punto y calibrado un nuevo prototipo de cromat\u00f3grafo supercr\u00edtico (hp modleo g 1205 a) y se ha depurado un protocolo de selecci\u00f3n previa, mediante an\u00e1lisis espectoral, de las condiciones \u00f3ptimas de detecci\u00f3n ultravioleta, principal fuente de incertidumbre que grava sobre buena parte de los datos rese\u00f1ados en la bibliograf\u00eda sobre difusividad molecular obtenidos por la t\u00e9cnica de dispersi\u00f3n. mediante la t\u00e9cnica de ensanchamiento del pico cromatogr\u00e1fico y el modelo de taylor-aris, se han determinado los coeficientes de difusi\u00f3n a diluci\u00f3n infinita de quince sustancias arom\u00e1ticas (benceno derivados) en di\u00f3xido de carbono supercr\u00edtico a cinco presiones (150, 200, 250, 300 y 350 bar) y a las temperaturas de 40, 50 y 60\u00c2\u00bac. Para tres de ellas de diferente polaridad (tert-butilbenceno, 1,2-diclorobenceno y 2-nitroanisol) se han realizado tambi\u00e9n medias de la variabilidad de dicho coeficiente introduciendo modificadores a baja concentraci\u00f3n, n-hexanol al 10% y metanol al 5 y al 10%. los resultados obtenidos, depurados por nuestro procedimiento, configuran una regi\u00f3n de estado que se describe satisfactoriamente mediante sencillas correlaciones con propiedades de campo, como presi\u00f3n y temperatura, y con otras propiedades de densidad como la viscosidad y densidad m\u00e1sica.<\/p>\n<p>&nbsp;<\/p>\n<h3>Datos acad\u00e9micos de la tesis doctoral \u00ab<strong>Determinaci\u00f3n cromatografica de difusividades moleculares en co2 supercritico puro y modificado con disolventes org\u00e1nicos<\/strong>\u00ab<\/h3>\n<ul>\n<li><strong>T\u00edtulo de la tesis:<\/strong>\u00a0 Determinaci\u00f3n cromatografica de difusividades moleculares en co2 supercritico puro y modificado con disolventes org\u00e1nicos <\/li>\n<li><strong>Autor:<\/strong>\u00a0 Luis Miguel Gonzalez Prado <\/li>\n<li><strong>Universidad:<\/strong>\u00a0 Oviedo<\/li>\n<li><strong>Fecha de lectura de la tesis:<\/strong>\u00a0 16\/02\/2007<\/li>\n<\/ul>\n<p>&nbsp;<\/p>\n<h3>Direcci\u00f3n y tribunal<\/h3>\n<ul>\n<li><strong>Director de la tesis<\/strong>\n<ul>\n<li> Bueno De Las Heras Julio Luis Mar\u00eda<\/li>\n<\/ul>\n<\/li>\n<li><strong>Tribunal<\/strong>\n<ul>\n<li>Presidente del tribunal: Jose Coca Prados <\/li>\n<li>Jos\u00e9 Manuel Arag\u00f3n Romero (vocal)<\/li>\n<li>Sebastian Delgado Diaz (vocal)<\/li>\n<li>Ram\u00f3n Bergueiro Jose (vocal)<\/li>\n<\/ul>\n<\/li>\n<\/ul>\n<p>&nbsp;<\/p>\n","protected":false},"excerpt":{"rendered":"<p>Tesis doctoral de Luis Miguel Gonzalez Prado Se ha puesto a punto y calibrado un nuevo prototipo de cromat\u00f3grafo supercr\u00edtico [&hellip;]<\/p>\n","protected":false},"author":1,"featured_media":0,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"site-sidebar-layout":"default","site-content-layout":"","ast-site-content-layout":"","site-content-style":"default","site-sidebar-style":"default","ast-global-header-display":"","ast-banner-title-visibility":"","ast-main-header-display":"","ast-hfb-above-header-display":"","ast-hfb-below-header-display":"","ast-hfb-mobile-header-display":"","site-post-title":"","ast-breadcrumbs-content":"","ast-featured-img":"","footer-sml-layout":"","theme-transparent-header-meta":"","adv-header-id-meta":"","stick-header-meta":"","header-above-stick-meta":"","header-main-stick-meta":"","header-below-stick-meta":"","astra-migrate-meta-layouts":"default","ast-page-background-enabled":"default","ast-page-background-meta":{"desktop":{"background-color":"var(--ast-global-color-4)","background-image":"","background-repeat":"repeat","background-position":"center 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