{"id":25219,"date":"2003-08-09T00:00:00","date_gmt":"2003-08-09T00:00:00","guid":{"rendered":"https:\/\/www.deberes.net\/tesis\/sin-categoria\/estudio-de-la-extraccion-de-los-la%c2%adpidos-de-la-lana-con-co2-y-su-efecto-en-las-fibras\/"},"modified":"2003-08-09T00:00:00","modified_gmt":"2003-08-09T00:00:00","slug":"estudio-de-la-extraccion-de-los-la%c2%adpidos-de-la-lana-con-co2-y-su-efecto-en-las-fibras","status":"publish","type":"post","link":"https:\/\/www.deberes.net\/tesis\/ingenieria-y-tecnologia-quimicas\/estudio-de-la-extraccion-de-los-la%c2%adpidos-de-la-lana-con-co2-y-su-efecto-en-las-fibras\/","title":{"rendered":"Estudio de la extracci\u00f3n de los l\u00edpidos de la lana con co2 y su efecto en las fibras"},"content":{"rendered":"<h2>Tesis doctoral de <strong> Carmen Dom\u00ednguez Fern\u00e1ndez <\/strong><\/h2>\n<p>En esta tesis doctoral se desarrola un procedimiento de obtenci\u00f3n de lana limpia de calidad, mediante un proceso no contaminante de inter\u00e9s industrial, utilizando co2\/modificador en condiciones de presi\u00f3n y temperatura moderada. de forma paralela se desarrolla una metodolog\u00eda para la extracci\u00f3n selectiva de ceras de elevada pureza a partir de lana cruda con posibles aplicaciones en la industria farmac\u00e9utica y cosm\u00e9tica. A fin de completar este estudio se determina la influencia de las condiciones de extracci\u00f3n en la composici\u00f3n de los extractos de ceras obtenidos. Para ello se desarrolla un m\u00e9todo anal\u00edtico exacto, preciso y sensible mediante tlc-fid, que permita identificar y evaluar las diferentes familias de compuestos presentes. Finalmente se eval\u00faa las propiedades fisicoqu\u00edmicas y tint\u00f3reas de las fibras de lana, a fin de evaluar su calidad.  en base a los estudios realizados se propone un m\u00e9todo de extracci\u00f3n de ceras presentes en la superficie de las fibras de lana cruda con co2 conteniendo un modificador polar en condiciones de presi\u00f3n y temperatura moderadas (100 bar, 60\u00c2\u00bac), el cual presenta respecto al lavado industrial las siguientes ventajas:  * no requiere el consumo de agua evit\u00e1ndose la generaci\u00f3n de grandes vol\u00famenes de efluentes con elevados valores de demanda biol\u00f3gica de ox\u00edgeno (dbo) cuya regeneraci\u00f3n implica un elevado coste.  * las ceras se recuperan, en su totalidad, libres de impurezas (suarda, suciedad y part\u00edculas s\u00f3lidas).  * las ceras, adem\u00e1s, se pueden obtener dependiendo de su solubilidad relativa en el l\u00edquido colector del extractor en dos fracciones, una rica en l\u00edpidos apolares y otra rica en l\u00edpidos polares, las cuales pueden tener diferencias aplicaciones.  * las fibras extra\u00eddas, presentan propiedades mec\u00e1nicas y comportamiento tint\u00f3reo aceptable, evit\u00e1ndose un deterioro adicional.<\/p>\n<p>&nbsp;<\/p>\n<h3>Datos acad\u00e9micos de la tesis doctoral \u00ab<strong>Estudio de la extracci\u00f3n de los l\u00edpidos de la lana con co2 y su efecto en las fibras<\/strong>\u00ab<\/h3>\n<ul>\n<li><strong>T\u00edtulo de la tesis:<\/strong>\u00a0 Estudio de la extracci\u00f3n de los l\u00edpidos de la lana con co2 y su efecto en las fibras <\/li>\n<li><strong>Autor:<\/strong>\u00a0 Carmen Dom\u00ednguez Fern\u00e1ndez <\/li>\n<li><strong>Universidad:<\/strong>\u00a0 Barcelona<\/li>\n<li><strong>Fecha de lectura de la tesis:<\/strong>\u00a0 08\/09\/2003<\/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>Pilar Erra Serrabasa<\/li>\n<\/ul>\n<\/li>\n<li><strong>Tribunal<\/strong>\n<ul>\n<li>Presidente del tribunal: Mar\u00eda dolores Luque de castro <\/li>\n<li>dragan Jocic (vocal)<\/li>\n<li>Mar\u00eda Jos\u00e9 Garc\u00eda celma (vocal)<\/li>\n<li>roberto Alzaga morales (vocal)<\/li>\n<\/ul>\n<\/li>\n<\/ul>\n<p>&nbsp;<\/p>\n","protected":false},"excerpt":{"rendered":"<p>Tesis doctoral de Carmen Dom\u00ednguez Fern\u00e1ndez En esta tesis doctoral se desarrola un procedimiento de obtenci\u00f3n de lana limpia de [&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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