{"id":31156,"date":"2026-07-02T11:24:59","date_gmt":"2026-07-02T14:24:59","guid":{"rendered":"https:\/\/www.inthemine.com.br\/site\/?p=31156"},"modified":"2026-07-02T13:55:40","modified_gmt":"2026-07-02T16:55:40","slug":"economia-circular-residuos","status":"publish","type":"post","link":"https:\/\/www.inthemine.com.br\/site\/economia-circular-residuos\/","title":{"rendered":"IDS DA AMG BRASIL E O CASE: &#8220;ECONOMIA CIRCULAR-RES\u00cdDUOS&#8221;"},"content":{"rendered":"<p>O projeto \u201c<strong>Aproveitamento econ\u00f4mico de res\u00edduos aluminosilicosos do beneficiamento de concentrados de t\u00e2ntalo e l\u00edtio em materiais geopolim\u00e9ricos e ciment\u00edcios\u201d<\/strong>, desenvolvido pela AMG Brasil, busca agregar valor aos rejeitos provenientes do processamento de minerais cr\u00edticos, como t\u00e2ntalo e l\u00edtio, por meio do desenvolvimento de formula\u00e7\u00f5es geopolim\u00e9ricas e ciment\u00edcias capazes de substituir parcialmente mat\u00e9rias-primas convencionais utilizadas na ind\u00fastria da constru\u00e7\u00e3o. O projeto contemplou desde estudos laboratoriais at\u00e9 etapas de pr\u00e9-escalonamento e testes em planta piloto, garantindo a avalia\u00e7\u00e3o do desempenho t\u00e9cnico dos materiais em condi\u00e7\u00f5es pr\u00f3ximas \u00e0s de aplica\u00e7\u00e3o industrial.<\/p>\n<p>O trabalho \u00e9 resultado de uma parceria entre a empresa e a Financiadora de Estudos e Projetos (FINEP), que aportou recursos por meio de um edital de subven\u00e7\u00e3o econ\u00f4mica n\u00e3o reembols\u00e1vel. Para a condu\u00e7\u00e3o dos testes, foi estabelecida uma colabora\u00e7\u00e3o entre a AMG Brasil e o Centro de Escalonamento e Tecnologias (Escalab), unidade da Universidade Federal de Minas Gerais (UFMG).<\/p>\n<p>Na linha de desenvolvimento de materiais geopolim\u00e9ricos, os resultados dos testes realizados demonstraram que o rejeito aluminosilicoso apresenta potencial como precursor para materiais ciment\u00edcios alternativos, alcan\u00e7ando resist\u00eancias mec\u00e2nicas adequadas. Durante o projeto tamb\u00e9m foram produzidos prot\u00f3tipos de pe\u00e7as, incluindo pisos intertravados, validando a aplicabilidade do material em produtos para pavimenta\u00e7\u00e3o.<\/p>\n<p>Paralelamente, foi desenvolvida uma formula\u00e7\u00e3o ciment\u00edcia otimizada para concreto, voltada \u00e0 produ\u00e7\u00e3o de artefatos de pavimenta\u00e7\u00e3o. Ap\u00f3s diversos testes e ajustes nas propor\u00e7\u00f5es dos componentes, foi definida uma composi\u00e7\u00e3o considerada ideal contendo 45% de rejeito, 30% de cimento e os outros 25% sendo de outros particulados para agregar resist\u00eancia a massa, sem necessidade de adi\u00e7\u00e3o de areia ou aditivos qu\u00edmicos. Foram ainda investigadas alternativas de materiais, como o uso de anfibolito, uma rocha est\u00e9ril da AMG, na substitui\u00e7\u00e3o dos outros particulados, ampliando as possibilidades de aplica\u00e7\u00e3o industrial e otimiza\u00e7\u00e3o de custos do processo produtivo.<\/p>\n<h5>Foto: AMG Brasil\/Divulga\u00e7\u00e3o<\/h5>\n<p><a href=\"https:\/\/www.inthemine.com.br\/site\/wp-content\/uploads\/2026\/07\/image-IDS-AMG.jpg\"><img loading=\"lazy\" decoding=\"async\" class=\"aligncenter size-full wp-image-31236\" src=\"https:\/\/www.inthemine.com.br\/site\/wp-content\/uploads\/2026\/07\/image-IDS-AMG.jpg\" alt=\"image-IDS-AMG\" width=\"700\" height=\"1648\" srcset=\"https:\/\/www.inthemine.com.br\/site\/wp-content\/uploads\/2026\/07\/image-IDS-AMG.jpg 700w, https:\/\/www.inthemine.com.br\/site\/wp-content\/uploads\/2026\/07\/image-IDS-AMG-127x300.jpg 127w, https:\/\/www.inthemine.com.br\/site\/wp-content\/uploads\/2026\/07\/image-IDS-AMG-435x1024.jpg 435w, https:\/\/www.inthemine.com.br\/site\/wp-content\/uploads\/2026\/07\/image-IDS-AMG-652x1536.jpg 652w\" sizes=\"auto, (max-width: 700px) 100vw, 700px\" \/><\/a><\/p>\n","protected":false},"excerpt":{"rendered":"<p>Projeto da AMG transforma rejeitos de t\u00e2ntalo e l\u00edtio em materiais para constru\u00e7\u00e3o, ampliando inova\u00e7\u00e3o, efici\u00eancia e sustentabilidade<\/p>\n","protected":false},"author":3,"featured_media":31157,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[9],"tags":[9374,9373,8929,9371,9157,9372,9370,109,1926,2578],"class_list":["post-31156","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-meio-ambiente","tag-amgbrasil","tag-construcaosustentavel","tag-economiacircular","tag-geopolimeros","tag-inovacaomineral","tag-materiaiscimenticios","tag-residuosminerais","tag-finep","tag-litio","tag-tantalo"],"yoast_head":"<!-- This site is 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