Carbothermic reduction of a willemite concentrate for use in the Waelz process.

Registro completo de metadados
MetadadosDescriçãoIdioma
Autor(es): dc.creatorCoimbra, Vitor Silva-
Autor(es): dc.creatorLima, Geraldo Magela de-
Autor(es): dc.creatorLeão, Versiane Albis-
Autor(es): dc.creatorSouza, Rodrigo Fernandes Magalhães de-
Autor(es): dc.creatorOliveira, Victor de Andrade Alvarenga-
Data de aceite: dc.date.accessioned2025-08-21T15:37:29Z-
Data de disponibilização: dc.date.available2025-08-21T15:37:29Z-
Data de envio: dc.date.issued2024-12-01-
Data de envio: dc.date.issued2024-12-01-
Data de envio: dc.date.issued2022-
Fonte completa do material: dc.identifierhttps://www.repositorio.ufop.br/handle/123456789/19243-
Fonte completa do material: dc.identifierhttp://dx.doi.org/10.17159/2411-9717/2516/2023.-
Fonte: dc.identifier.urihttp://educapes.capes.gov.br/handle/capes/1020032-
Descrição: dc.descriptionA willemite concentrate consisting mainly of willemite (55.3%) and dolomite (15.6%) was reduced in a tube furnace with charcoal as reductant. The effects of temperature and varying reductant additions on zinc extraction were studied. A zinc recovery of 86% was achieved with 20% reductant in the charge at 1100°C. During reduction, the calcium oxide generated through calcination of the dolomite promoted decomposition of the willemite, thus lowering the temperature at which reduction took place. The presence of CaO improved the zinc recovery at all temperatures studied. The best zinc recovery (93%) was obtained in the presence of 5% CaO, 20% charcoal reductant, and at a temperature of 1100°C. The results show that the willemite concentrate studied has great potential to be used as a raw material for the Waelz process.-
Formato: dc.formatapplication/pdf-
Idioma: dc.languageen-
Direitos: dc.rightsaberto-
Direitos: dc.rightsAll work published in the Journal of the Southern African Institute of Mining and Metallurgy is licensed under a Creative Commons Attribution 4.0 International license (CC BY 4.0). Fonte: Journal of the Southern African Institute of Mining and Metallurgy <https://scielo.org.za/revistas/jsaimm/iaboutj.htm>. Acesso em: 01 ago. 2024-
Palavras-chave: dc.subjectWaelz process-
Palavras-chave: dc.subjectWillemite-
Palavras-chave: dc.subjectCarbothermic reduction-
Palavras-chave: dc.subjectZinc smelting-
Palavras-chave: dc.subjectNon-sulphide zinc ore-
Título: dc.titleCarbothermic reduction of a willemite concentrate for use in the Waelz process.-
Aparece nas coleções:Repositório Institucional - UFOP

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