{"id":59830,"date":"2025-08-23T00:30:08","date_gmt":"2025-08-22T21:30:08","guid":{"rendered":"https:\/\/geoconversation.org\/news\/scientists-have-proposed-a-new-way-to-process-ash-into-alumina\/"},"modified":"2025-08-23T00:30:08","modified_gmt":"2025-08-22T21:30:08","slug":"scientists-have-proposed-a-new-way-to-process-ash-into-alumina","status":"publish","type":"news","link":"https:\/\/geoconversation.org\/en\/news\/scientists-have-proposed-a-new-way-to-process-ash-into-alumina\/","title":{"rendered":"Scientists have proposed a new way to process ash into alumina"},"content":{"rendered":"\n

Russian and Chinese scientists have developed an innovative technology for processing ash from coal thermal power plants. The method allows the extraction of valuable alumina for production aluminum<\/a>, reduce waste and reduce dependence on imported raw materials.<\/p>\n\n\n

The world’s coal-fired power plants produce about a billion tons of ash every year. Most of this waste is stored, polluting the environment. Moreover, the ash contains up to 40% aluminum oxide, a key component for metal production. Russia and China, as the largest aluminum producers, are experiencing a shortage of their own bauxite and are forced to import raw materials. New technology solves this problem by using ash as an alternative source of aluminum.<\/p>\n\n\n

The recycling process includes three main stages. First, the ash undergoes magnetic separation, which removes up to 34% of iron. Then acid leaching is carried out at high temperature, which allows you to extract up to 78% of the aluminum in just one and a half hours. At the final stage, the solution is cleared of iron using ion exchange resins. The cleaning efficiency reaches a 12-fold reduction in iron concentration.<\/p>\n\n\n

The technology is not only environmentally friendly, but also economically beneficial. The profit from each ton of processed ash can reach 11.5 thousand rubles. The process produces three useful products: alumina for metallurgy, an iron-containing fraction and silica residue for building materials. The method has successfully passed laboratory tests and is ready for implementation on an industrial scale.<\/p>\n\n\n

The material was prepared with the support of the Russian Ministry of Education and Science as part of the Decade of Science and Technology.<\/sub><\/p>\n\n\n

Source: minobrnauki.gov.ru<\/sub><\/p>\n\n\n

The image was generated by a neural network.<\/sub><\/p>\n\n\n

<\/p>\n","protected":false},"excerpt":{"rendered":"

Russian and Chinese scientists have developed an innovative technology for processing ash from coal thermal power plants. The method allows the extraction of valuable alumina for production aluminum , reduce waste and reduce dependence on imported raw materials. The world’s coal-fired power plants produce about a billi<\/p>\n","protected":false},"author":9,"featured_media":24211,"comment_status":"open","ping_status":"closed","template":"","meta":{"_acf_changed":false,"_seopress_robots_primary_cat":"","_seopress_titles_title":"Scientists have proposed a new way to process ash into alumina","_seopress_titles_desc":"Learn about innovative technology for processing ash from coal-fired power plants into valuable alumina. Read about the economic and environmental benefits of the method.","_seopress_robots_index":"","_seopress_analysis_target_kw":"","footnotes":""},"categories":[12],"tags":[367],"class_list":["post-59830","news","type-news","status-publish","has-post-thumbnail","category-dobycha-poleznyh-iskopaemyh","tag-pererabotka-othodov"],"acf":[],"pbg_featured_image_src":{"full":["https:\/\/geoconversation.org\/wp-content\/uploads\/2025\/08\/innovacionnyj-metod-pererabotki-zoly_png.webp",1280,1024,false],"thumbnail":["https:\/\/geoconversation.org\/wp-content\/uploads\/2025\/08\/innovacionnyj-metod-pererabotki-zoly_png-150x150.webp",150,150,true],"medium":["https:\/\/geoconversation.org\/wp-content\/uploads\/2025\/08\/innovacionnyj-metod-pererabotki-zoly_png-300x240.webp",300,240,true],"medium_large":["https:\/\/geoconversation.org\/wp-content\/uploads\/2025\/08\/innovacionnyj-metod-pererabotki-zoly_png-768x614.webp",768,614,true],"large":["https:\/\/geoconversation.org\/wp-content\/uploads\/2025\/08\/innovacionnyj-metod-pererabotki-zoly_png-1024x819.webp",1024,819,true],"1536x1536":["https:\/\/geoconversation.org\/wp-content\/uploads\/2025\/08\/innovacionnyj-metod-pererabotki-zoly_png.webp",1280,1024,false],"2048x2048":["https:\/\/geoconversation.org\/wp-content\/uploads\/2025\/08\/innovacionnyj-metod-pererabotki-zoly_png.webp",1280,1024,false],"bricks_large_16x9":["https:\/\/geoconversation.org\/wp-content\/uploads\/2025\/08\/innovacionnyj-metod-pererabotki-zoly_png-1200x675.webp",1200,675,true],"bricks_large":["https:\/\/geoconversation.org\/wp-content\/uploads\/2025\/08\/innovacionnyj-metod-pererabotki-zoly_png-1200x960.webp",1200,960,true],"bricks_large_square":["https:\/\/geoconversation.org\/wp-content\/uploads\/2025\/08\/innovacionnyj-metod-pererabotki-zoly_png-1200x1024.webp",1200,1024,true],"bricks_medium":["https:\/\/geoconversation.org\/wp-content\/uploads\/2025\/08\/innovacionnyj-metod-pererabotki-zoly_png-600x480.webp",600,480,true],"bricks_medium_square":["https:\/\/geoconversation.org\/wp-content\/uploads\/2025\/08\/innovacionnyj-metod-pererabotki-zoly_png-600x600.webp",600,600,true]},"pbg_author_info":{"display_name":"Lyubov Cherkasova","author_link":"https:\/\/geoconversation.org\/en\/author\/amourallis\/","author_img":false},"pbg_comment_info":" No Comments","pbg_excerpt":"Russian and Chinese scientists have developed an innovative technology for processing ash from coal thermal power plants. The method allows the extraction of valuable alumina for production aluminum , reduce waste and reduce dependence on imported raw materials. The world's coal-fired power plants produce about a billi","_links":{"self":[{"href":"https:\/\/geoconversation.org\/en\/wp-json\/wp\/v2\/news\/59830","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/geoconversation.org\/en\/wp-json\/wp\/v2\/news"}],"about":[{"href":"https:\/\/geoconversation.org\/en\/wp-json\/wp\/v2\/types\/news"}],"author":[{"embeddable":true,"href":"https:\/\/geoconversation.org\/en\/wp-json\/wp\/v2\/users\/9"}],"replies":[{"embeddable":true,"href":"https:\/\/geoconversation.org\/en\/wp-json\/wp\/v2\/comments?post=59830"}],"version-history":[{"count":0,"href":"https:\/\/geoconversation.org\/en\/wp-json\/wp\/v2\/news\/59830\/revisions"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/geoconversation.org\/en\/wp-json\/wp\/v2\/media\/24211"}],"wp:attachment":[{"href":"https:\/\/geoconversation.org\/en\/wp-json\/wp\/v2\/media?parent=59830"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/geoconversation.org\/en\/wp-json\/wp\/v2\/categories?post=59830"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/geoconversation.org\/en\/wp-json\/wp\/v2\/tags?post=59830"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}