Rendering wastes obtained from gold analysis by the lead-fusion fire-assay method non-hazardous.

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dc.contributor.authorMagalhães, Fernanda Batalha de
dc.contributor.authorCarvalho, Cornélio de Freitas
dc.contributor.authorCarvalho, Eduardo Lyse Corrêa Netto
dc.contributor.authorYoshida, Maria Irene
dc.contributor.authorSantos, Cláudio Gouvêa dos
dc.date.accessioned2015-04-01T17:16:34Z
dc.date.available2015-04-01T17:16:34Z
dc.date.issued2012
dc.description.abstractThe classical method of melting lead by fire-assay (Pb-FA) is the most frequently used analytical technique in gold prospection. The crucible solid waste which is generated in this process is usually characterized by chemical and mineralogical composition, granulometric size distribution, and classified according to Brazilian Environmental Regulations. This study demonstrates how acid leaching can be used to remove lead from waste originally classified as hazardous by treatment with hydrochloric and nitric acids followed by chemical precipitation in sodium metasilicate solution. It is shown that for every 1000 kg of hazardous waste, 995.6 kg of nonharzardous waste can be recovered.pt_BR
dc.identifier.citationMAGALHÃES, F. B. et al. Rendering wastes obtained from gold analysis by the lead-fusion fire-assay method non-hazardous. Journal of Environmental Management, v. 110, p. 110-115, 2012. Disponível em: <http://www.sciencedirect.com/science/article/pii/S030147971200343X>. Acesso em: 02 fev. 2015.pt_BR
dc.identifier.doihttps://doi.org/10.1016/j.jenvman.2012.06.028
dc.identifier.issn0301-4797
dc.identifier.urihttp://www.repositorio.ufop.br/handle/123456789/4869
dc.language.isoen_USpt_BR
dc.rights.licenseO periódico Journal of Environmental Management concede permissão para depósito deste artigo no Repositório Institucional da UFOP. Número da licença: 3577131007337.pt_BR
dc.subjectLeadpt_BR
dc.subjectCrucible wastept_BR
dc.subjectLeachingpt_BR
dc.subjectChemical precipitationpt_BR
dc.titleRendering wastes obtained from gold analysis by the lead-fusion fire-assay method non-hazardous.pt_BR
dc.typeArtigo publicado em periodicopt_BR
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