{"id":86194,"date":"2018-03-10T00:10:46","date_gmt":"2018-03-10T00:10:46","guid":{"rendered":"https:\/\/www.deberes.net\/tesis\/sin-categoria\/estudio-de-la-extraccion-de-pbii-znii-y-coii-con-extractantes-alquiltiofosfinicos\/"},"modified":"2018-03-10T00:10:46","modified_gmt":"2018-03-10T00:10:46","slug":"estudio-de-la-extraccion-de-pbii-znii-y-coii-con-extractantes-alquiltiofosfinicos","status":"publish","type":"post","link":"https:\/\/www.deberes.net\/tesis\/quimica\/estudio-de-la-extraccion-de-pbii-znii-y-coii-con-extractantes-alquiltiofosfinicos\/","title":{"rendered":"Estudio de la extracci\u00f3n de pb(ii), zn(ii) y co(ii) con extractantes alquiltiofosfinicos."},"content":{"rendered":"<h2>Tesis doctoral de <strong> Bego\u00f1a Menoyo Arriandiaga <\/strong><\/h2>\n<p>Se ha llevado a cabo el estudio de la extracci\u00f3n indiviudal de los iones met\u00e1licos zn(ii), pb(ii) y co (ii) en medio kc1 1,0m conlos extractantes cyanex 302 y cyanex 301, cuyos componentes principales son\u00e1cido bis (2,4,4-trimetilpentil) monotiofosf\u00ednico y \u00e1cido bis (2,4,4-trimetilpentil) ditiofosf\u00ednico, respectivamente, a atrav\u00e9s de la medida de coeficiente de distribuci\u00f3n de cada metal en funci\u00f3n de las variables qu\u00edmicas del sistema: ph y concentraciones totales de metal y de extractante. Tambi\u00e9n se ha estudiado la influencia que ejerce en el proceso extractivo la peque\u00f1a cantidad de \u00e1cido bis (2,4,4-trimetilpentil) ditiofosf\u00ednico, componente principal de cyanex 301, y que tambi\u00e9n est\u00e1 presente en cyanex 302 en un 0,5-2%,  los datos de extracci\u00f3n obtenidos en cada uno de los sistemas, se han tratado gr\u00e1fica y num\u00e9ricamente, y se ha determinado la estequiometr\u00eda de los complejos extra\u00eddos as\u00ed como los valores de sus consttantes de extracci\u00f3n.  se ha cuantificado el contenido en \u00e1cido bis (2,4,4-trimetilpentil) ditiofosf\u00ednico en diferenes lotes de cyanes 302. Adem\u00e1s se ha llevado a cabo la caracterizaci\u00f3n e identificaci\u00f3n de las especies presentes en los extractantes as\u00ed como el estudio de su estabilidad en presencia de \u00e1cidos minerales. Se han identificado los productos de degradaci\u00f3n mediante las t\u00e9cnicas de gc-ms, gc-npd y espectroscop\u00eda ft-raman e ir.  finalmente, se ha llevado a cabo el estudio de la extracci\u00f3n de pb(ii) de \u00e1cido fosf\u00f3rico de concentraci\u00f3n variable de 0,4 a 5,8 m con cyanex 302 y cyanex 301, comprob\u00e1ndose la eficacia de estos extractantes para eliminar pb(ii) de dicho medio. Se han determinado las constantes este quiom\u00e9tricas de extracci\u00f3n para cada concentraci\u00f3n de \u00e1cido fosf\u00f3rico y se han correlacionado utilizando la teor\u00eda de bromley de c\u00e1lculo de coeficientes de actividad.<\/p>\n<p>&nbsp;<\/p>\n<h3>Datos acad\u00e9micos de la tesis doctoral \u00ab<strong>Estudio de la extracci\u00f3n de pb(ii), zn(ii) y co(ii) con extractantes alquiltiofosfinicos.<\/strong>\u00ab<\/h3>\n<ul>\n<li><strong>T\u00edtulo de la tesis:<\/strong>\u00a0 Estudio de la extracci\u00f3n de pb(ii), zn(ii) y co(ii) con extractantes alquiltiofosfinicos. <\/li>\n<li><strong>Autor:<\/strong>\u00a0 Bego\u00f1a Menoyo Arriandiaga <\/li>\n<li><strong>Universidad:<\/strong>\u00a0 Pa\u00eds vasco\/euskal herriko unibertsitatea<\/li>\n<li><strong>Fecha de lectura de la tesis:<\/strong>\u00a0 27\/07\/2000<\/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>Mar\u00eda  Puy Elizalde Ruiz De Larramendi<\/li>\n<\/ul>\n<\/li>\n<li><strong>Tribunal<\/strong>\n<ul>\n<li>Presidente del tribunal: manuel Valiente malmagro <\/li>\n<li>Jos\u00e9 Luis Cortina pallas (vocal)<\/li>\n<li>mario Avila rodriguez (vocal)<\/li>\n<li>Francisco Alguacil prieto (vocal)<\/li>\n<\/ul>\n<\/li>\n<\/ul>\n<p>&nbsp;<\/p>\n","protected":false},"excerpt":{"rendered":"<p>Tesis doctoral de Bego\u00f1a Menoyo Arriandiaga Se ha llevado a cabo el estudio de la extracci\u00f3n indiviudal de los iones [&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 center","background-size":"auto","background-attachment":"scroll","background-type":"","background-media":"","overlay-type":"","overlay-color":"","overlay-gradient":""},"tablet":{"background-color":"","background-image":"","background-repeat":"repeat","background-position":"center center","background-size":"auto","background-attachment":"scroll","background-type":"","background-media":"","overlay-type":"","overlay-color":"","overlay-gradient":""},"mobile":{"background-color":"","background-image":"","background-repeat":"repeat","background-position":"center center","background-size":"auto","background-attachment":"scroll","background-type":"","background-media":"","overlay-type":"","overlay-color":"","overlay-gradient":""}},"ast-content-background-meta":{"desktop":{"background-color":"var(--ast-global-color-5)","background-image":"","background-repeat":"repeat","background-position":"center center","background-size":"auto","background-attachment":"scroll","background-type":"","background-media":"","overlay-type":"","overlay-color":"","overlay-gradient":""},"tablet":{"background-color":"var(--ast-global-color-5)","background-image":"","background-repeat":"repeat","background-position":"center center","background-size":"auto","background-attachment":"scroll","background-type":"","background-media":"","overlay-type":"","overlay-color":"","overlay-gradient":""},"mobile":{"background-color":"var(--ast-global-color-5)","background-image":"","background-repeat":"repeat","background-position":"center center","background-size":"auto","background-attachment":"scroll","background-type":"","background-media":"","overlay-type":"","overlay-color":"","overlay-gradient":""}},"footnotes":""},"categories":[604,12909,17,18,57866],"tags":[181062,181064,52576,13820,52951,181063],"class_list":["post-86194","post","type-post","status-publish","format-standard","hentry","category-espectroscopia-de-absorcion","category-pais-vasco-euskal-herriko-unibertsitatea","category-quimica","category-quimica-analitica","category-volumetria","tag-begona-menoyo-arriandiaga","tag-francisco-alguacil-prieto","tag-jose-luis-cortina-pallas","tag-manuel-valiente-malmagro","tag-maria-puy-elizalde-ruiz-de-larramendi","tag-mario-avila-rodriguez"],"_links":{"self":[{"href":"https:\/\/www.deberes.net\/tesis\/wp-json\/wp\/v2\/posts\/86194","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/www.deberes.net\/tesis\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/www.deberes.net\/tesis\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/www.deberes.net\/tesis\/wp-json\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/www.deberes.net\/tesis\/wp-json\/wp\/v2\/comments?post=86194"}],"version-history":[{"count":0,"href":"https:\/\/www.deberes.net\/tesis\/wp-json\/wp\/v2\/posts\/86194\/revisions"}],"wp:attachment":[{"href":"https:\/\/www.deberes.net\/tesis\/wp-json\/wp\/v2\/media?parent=86194"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/www.deberes.net\/tesis\/wp-json\/wp\/v2\/categories?post=86194"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/www.deberes.net\/tesis\/wp-json\/wp\/v2\/tags?post=86194"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}