Utilize este identificador para referenciar este registo:
https://hdl.handle.net/1822/91195
Título: | The potential of reprocessing Au and by-products from a tailing dam in the Iron Quadrangle – The case of the Cuiaba Dam, Sabará, Minas Gerais |
Autor(es): | Lemos, Mariana Gazire Valente, Teresa Maria Fernandes Reis, Amélia Paula Marinho Sequeira, Braga Amália Fonseca, Rita Maria Ferreira Filho, José Gregorio da Mata Magalhães, Marcus Felix |
Editor(es): | Kleinmann, B. Skousen, J. Wolkersdorfer, Ch. |
Palavras-chave: | Circular economy Mining tailings Au recovery By-products Construction materials |
Data: | 2024 |
Resumo(s): | As historical mine wastes have accumulated in storage facilities, the interest in studying the reuse of gold (Au) mining tailings has increased, yielding environmental and economic benefits. In the present study, a detailed evaluation of the Cuiaba tailing dam in Sabará, Minas Gerais (Brazil) was performed, answering a new legal framework and agreeing with a circular economy philosophy. The mineralogical analyses revealed that most associations include silicate minerals. In accordance, the Au recovery results reached values below 50%. Because of this, other potential reuse experiments, in addition to Au reprocessing, were conducted. The first product was produced from a particle size partition above 20 µm. Due to the silica concentration, this product became a fine aggregate for the construction sector. Another alternative is generating a pozzolanic product obtained by calcination, which has an application in the cement industry. |
Tipo: | Capítulo de livro |
URI: | https://hdl.handle.net/1822/91195 |
ISBN: | 978-3-9825293-2-5 |
Versão da editora: | https://www.imwa.info/docs/imwa_2024/IMWA2024_Lemos_355.pdf |
Acesso: | Acesso aberto |
Aparece nas coleções: | CCT - Livros e Capítulos de Livros/Books and Book Chapters |
Ficheiros deste registo:
Ficheiro | Descrição | Tamanho | Formato | |
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IMWA2024_Lemos_355.pdf | 703,75 kB | Adobe PDF | Ver/Abrir |
Este trabalho está licenciado sob uma Licença Creative Commons