The kinetics of zinc silicate leaching in sodium hydroxide.

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dc.contributor.authorSantos, Fabiano Mariel Fernandes dos
dc.contributor.authorPina, Pablo dos Santos
dc.contributor.authorPorcaro, Rodrigo Rangel
dc.contributor.authorOliveira, Víctor de Andrade Alvarenga
dc.contributor.authorSilva, Carlos Antônio da
dc.contributor.authorLeão, Versiane Albis
dc.date.accessioned2012-08-02T17:07:05Z
dc.date.available2012-08-02T17:07:05Z
dc.date.issued2010
dc.description.abstractThe alkaline leaching kinetics of a zinc silicate ore assaying 34.1% Zn, 11.1% Fe and 22.9% SiO2 is studied in sodium hydroxide solutions. Speciation diagrams indicate zinc dissolution as [Zn(OH)4]2− and SEM analysis showed a progressive reduction in particle size during leaching which supports the shrinking particle model. The process is chemically controlled with an activation energy of 67.8±9.0 kJ/mol and reaction order with respect to NaOH determined as 1.44±0.46.pt_BR
dc.identifier.citationSANTOS, F. M. F. et al. The kinetics of zinc silicate leaching in sodium hydroxide. Hydrometallurgy, v. 102, n. 1-4, p. 43-49, abr. 2010. Disponível em: <https://www.sciencedirect.com/science/article/pii/S0304386X10000241>. Acesso em: 02 ago. 2012.pt_BR
dc.identifier.issn0304386X
dc.identifier.urihttp://www.repositorio.ufop.br/handle/123456789/1229
dc.language.isoen_USpt_BR
dc.rights.licenseO periódico Hydrometallurgy concede permissão para depósito do artigo no Repositório Institucional da UFOP. Número da licença: 3337021029066.
dc.subjectZinc silicatept_BR
dc.subjectSodium hydroxidept_BR
dc.subjectLeaching kineticspt_BR
dc.subjectShrinking particle modelpt_BR
dc.subjectChemical controlpt_BR
dc.titleThe kinetics of zinc silicate leaching in sodium hydroxide.pt_BR
dc.typeArtigo publicado em periodicopt_BR
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