{"id":2176,"date":"2020-06-05T06:54:34","date_gmt":"2020-06-05T06:54:34","guid":{"rendered":"http:\/\/alalloycasting.com\/?p=2176"},"modified":"2020-09-04T09:31:38","modified_gmt":"2020-09-04T09:31:38","slug":"bayer-process-for-alumina-extraction","status":"publish","type":"post","link":"https:\/\/www.alalloycasting.com\/es\/bayer-process-for-alumina-extraction\/","title":{"rendered":"Proceso de Bayer para la extracci\u00f3n de al\u00famina"},"content":{"rendered":"<p>El proceso Bayer para la extracci\u00f3n de al\u00famina es un proceso qu\u00edmico muy utilizado en la industria para producir al\u00famina a partir de la bauxita. La bauxita es una roca sedimentaria con un alto contenido en aluminio. A menudo, la bauxita se encuentra cubierta por varios metros de roca y arcilla, que deben retirarse primero para poder recuperarla.<\/p>\n<p>El proceso Bayer fue inventado por el ingeniero austriaco Karl Joseph Bayer en 1887. El principio b\u00e1sico consiste en convertir el hidr\u00f3xido de aluminio en aluminato de sodio mediante una soluci\u00f3n concentrada de hidr\u00f3xido de sodio, y volver a precipitar el hidr\u00f3xido de aluminio diluyendo la soluci\u00f3n y a\u00f1adiendo cristales semilla de hidr\u00f3xido de aluminio. La soluci\u00f3n de hidr\u00f3xido de sodio restante se reutilizaba para procesar el siguiente lote de bauxita, lo que permit\u00eda una producci\u00f3n continua. Hoy en d\u00eda, el proceso Bayer para <a href=\"http:\/\/www.alalloycasting.com\/es\/extraction-of-aluminium\/\">extracci\u00f3n de al\u00famina<\/a> Lo utilizan 95% de empresas del sector del aluminio en todo el mundo.<\/p>\n<h2>Proceso de Bayer para la extracci\u00f3n de al\u00famina<\/h2>\n<p>El m\u00e9todo Bayer se utiliza para tratar la bauxita con bajo contenido en s\u00edlice. El proceso es sencillo, su manejo es c\u00f3modo y la calidad del producto es elevada. M\u00e1s del 90% del \u00f3xido de aluminio y el hidr\u00f3xido de aluminio que se producen en todo el mundo se obtienen mediante el m\u00e9todo Bayer.<\/p>\n<p><img loading=\"lazy\" decoding=\"async\" class=\"alignnone size-full wp-image-4366\" src=\"http:\/\/alalloycasting.com\/wp-content\/uploads\/2020\/06\/Bayer-Process-for-Alumina-Extraction-1.jpg\" alt=\"Proceso de Bayer para la extracci\u00f3n de al\u00famina\" width=\"500\" height=\"400\" srcset=\"https:\/\/www.alalloycasting.com\/wp-content\/uploads\/2020\/06\/Bayer-Process-for-Alumina-Extraction-1.jpg 500w, https:\/\/www.alalloycasting.com\/wp-content\/uploads\/2020\/06\/Bayer-Process-for-Alumina-Extraction-1-300x240.jpg 300w\" sizes=\"auto, (max-width: 500px) 100vw, 500px\" \/><\/p>\n<p>El m\u00e9todo de Bayer comprende dos procesos principales: a temperatura ambiente, la relaci\u00f3n molar entre el \u00f3xido de sodio y la al\u00famina en la soluci\u00f3n de aluminato de sodio es de 1,8. Siempre que se a\u00f1ada hidr\u00f3xido de aluminio como cristal semilla y se agite, el \u00f3xido de aluminio presente en la soluci\u00f3n puede precipitarse gradualmente en forma de hidr\u00f3xido de aluminio. Hasta que la relaci\u00f3n molar entre el \u00f3xido de sodio y el \u00f3xido de aluminio aument\u00f3 a 6, la mayor parte de la soluci\u00f3n de hidr\u00f3xido de aluminio se hab\u00eda precipitado. Al calentarla, tambi\u00e9n se puede disolver el agua de la al\u00famina presente en la bauxita. La al\u00famina disuelta se adhiere a estos cristales semilla. Todas las impurezas se sedimentan fuera de la soluci\u00f3n formando un residuo denominado \u00ablodo rojo\u00bb. Mediante el uso alternativo de estos dos procesos, la bauxita puede procesarse por lotes, a partir de lo cual se obtienen productos de hidr\u00f3xido de aluminio puro.<\/p>\n<p>La soluci\u00f3n de aluminato de sodio se prepara disolviendo al\u00famina en bauxita con una soluci\u00f3n c\u00e1ustica. El proceso se lleva a cabo enfriando la soluci\u00f3n, a\u00f1adiendo cristales de siembra y agitando. Durante este tiempo, el aluminio se disuelve en la soluci\u00f3n de sosa c\u00e1ustica. El producto final del proceso Bayer es la al\u00famina u \u00f3xido de aluminio, que tiene el aspecto de un polvo blanco.<\/p>","protected":false},"excerpt":{"rendered":"<p>The Bayer process for alumina extraction is a chemical process widely used in the industry to produce alumina from bauxite. Bauxite is a sedimentary rock&hellip;<\/p>","protected":false},"author":1,"featured_media":2177,"comment_status":"closed","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[233],"tags":[316,315],"class_list":["post-2176","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-blog","tag-bayer-process-aluminium","tag-bayer-process-for-alumina-extraction"],"yoast_head":"<!-- This site is optimized with the Yoast SEO plugin v27.9 - https:\/\/yoast.com\/product\/yoast-seo-wordpress\/ -->\n<title>Bayer Process for Alumina Extraction,Bayer Process Aluminium<\/title>\n<meta name=\"description\" content=\"The Bayer process for alumina extraction is a chemical process widely used in the industry to produce alumina from bauxite.\" \/>\n<meta name=\"robots\" content=\"index, follow, max-snippet:-1, max-image-preview:large, max-video-preview:-1\" \/>\n<link rel=\"canonical\" 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