{"id":14070,"date":"2018-03-09T09:00:37","date_gmt":"2018-03-09T09:00:37","guid":{"rendered":"https:\/\/www.deberes.net\/tesis\/sin-categoria\/blanqueo-de-pastas-celulosicas-de-residuos-de-poda-del-olivar-mediante-metodos-totalmente-libres-de-cloro\/"},"modified":"2018-03-09T09:00:37","modified_gmt":"2018-03-09T09:00:37","slug":"blanqueo-de-pastas-celulosicas-de-residuos-de-poda-del-olivar-mediante-metodos-totalmente-libres-de-cloro","status":"publish","type":"post","link":"https:\/\/www.deberes.net\/tesis\/ingenieria-y-tecnologia-quimicas\/blanqueo-de-pastas-celulosicas-de-residuos-de-poda-del-olivar-mediante-metodos-totalmente-libres-de-cloro\/","title":{"rendered":"Blanqueo de pastas celulosicas de residuos de poda del olivar mediante metodos totalmente libres de cloro."},"content":{"rendered":"<h2>Tesis doctoral de <strong> Mar\u00eda Eugenia Eugenio Mart\u00edn <\/strong><\/h2>\n<p>En el presente trabajo se plantea la utilizacion de podas de olivo como materia prima para la obtenci\u00f3n de pasta celul\u00f3sicas y hojas de papel mediante el proceso de coccion kraft y blanqueo or metodos tcf.  la utilizaci\u00f3n de podas de olivo para dicho fin, implica un doble beneficio medioambiental: paliar en parte la escasez de materias primas madereras que conlleva a la deforestacion y dar solucion al problema de acumulacion de estos residuos en zonas geograficamente localizadas.  para el estudio de la influencia de las variables del proceso de cocci\u00f3n sobre las caracteristicas de las pastas y hojas de papel obtenidas, se plantea un dise\u00f1o factorial de composicion central o partir del cual se deducen ecuaciones polinomicos que aportan tal informacion. El estudi concluye que las condiciones optimas de cocci\u00f3n para conseguir pastas celulosicas de caracteristicas aceptables son: temperatura 175\u00c2\u00bac, tiempo: 90 minutos, y alcali activo 25%.  igualmente se plantean dise\u00f1os factoriales, similares al del pasteo, para el estudio del blanqueo. Se utilizan secuencias ecf,tcf y etapas con per\u00f3xido de hidr\u00f3geno, acido peracetico y perborato s\u00f3dico.  finalmente, se realiza un estudio comparativo de las distintas secuenias y reactivo primeros empleados. Se obtienen grados de blancuras en las secuencias ecf y tcf comparables a los de las pastas comerciales de otros materiales madereros. El peroxido de hidrogeno y el agente blanqueante mas selectivo, aunque el acido peracitico y el perborato conservan mejor la viscosidad, que las etapas con peroxido de hidrogeno, oxigeno u ozono.<\/p>\n<p>&nbsp;<\/p>\n<h3>Datos acad\u00e9micos de la tesis doctoral \u00ab<strong>Blanqueo de pastas celulosicas de residuos de poda del olivar mediante metodos totalmente libres de cloro.<\/strong>\u00ab<\/h3>\n<ul>\n<li><strong>T\u00edtulo de la tesis:<\/strong>\u00a0 Blanqueo de pastas celulosicas de residuos de poda del olivar mediante metodos totalmente libres de cloro. <\/li>\n<li><strong>Autor:<\/strong>\u00a0 Mar\u00eda Eugenia Eugenio Mart\u00edn <\/li>\n<li><strong>Universidad:<\/strong>\u00a0 Huelva<\/li>\n<li><strong>Fecha de lectura de la tesis:<\/strong>\u00a0 27\/11\/2001<\/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>Francisco Lopez Baldovin<\/li>\n<\/ul>\n<\/li>\n<li><strong>Tribunal<\/strong>\n<ul>\n<li>Presidente del tribunal: Luis Jimenez alcaide <\/li>\n<li>Manuel Rubio torres (vocal)<\/li>\n<li>cr\u00edspulo Gallegos montes (vocal)<\/li>\n<li>teresa Vidal llucia (vocal)<\/li>\n<\/ul>\n<\/li>\n<\/ul>\n<p>&nbsp;<\/p>\n","protected":false},"excerpt":{"rendered":"<p>Tesis doctoral de Mar\u00eda Eugenia Eugenio Mart\u00edn En el presente trabajo se plantea la utilizacion de podas de olivo como [&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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