Characterization of clays used in the ceramic manufacturing industry by reflectance spectroscopy: An experiment in the Sao Simao ball-clay deposit, Brazil

dc.creatorde Senna, JA
dc.creatorde Souza, CR
dc.creatorAngelica, RS
dc.date2008
dc.dateSEP
dc.date2014-07-30T16:51:53Z
dc.date2015-11-26T16:24:14Z
dc.date2014-07-30T16:51:53Z
dc.date2015-11-26T16:24:14Z
dc.date.accessioned2018-03-28T23:05:14Z
dc.date.available2018-03-28T23:05:14Z
dc.identifierApplied Clay Science. Elsevier Science Bv, v. 41, n. 41671, n. 85, n. 98, 2008.
dc.identifier0169-1317
dc.identifierWOS:000259688000009
dc.identifier10.1016/j.clay.2007.10.004
dc.identifierhttp://www.repositorio.unicamp.br/jspui/handle/REPOSIP/62827
dc.identifierhttp://repositorio.unicamp.br/jspui/handle/REPOSIP/62827
dc.identifier.urihttp://repositorioslatinoamericanos.uchile.cl/handle/2250/1268396
dc.descriptionConselho Nacional de Desenvolvimento Científico e Tecnológico (CNPq)
dc.descriptionThe characterization of clays from the physical, chemical, and ceramic standpoint in pre-and-within mining stages is a necessary step. However, succinct mining planning, lack of industry-oriented standards and the usual bond to empirical discrimination of clays as regards their use, imply in mixing chemically and technologically different materials, with serious consequences to the mining and manufacturing process. Taking the alluvium-derived, ball-clay deposit of Sao Simao (SS) as a case study, this works aims to evaluate the potential of reflectance spectroscopy (RS) as a method to define types, purity and crystallinity of clays and to seek a possible relation between spectral characteristics of clays and their use in the ceramic industry. The SS deposit hosts three types of clays that were spectrally set apart based on RS. The technique indicated that the white clays comprise highly ordered kaolinite, mica, smectite and lepidocrosite (first finding in Brazilian alluviums). The brown clays are also rich in well-ordered kaolinite and contain abundant Fe-bearing minerals, as goethite, hematite and siderite (rarely found in alluviums). The gray clays are kaolinite-poor and are abundant in organic matter and smectites. Each of the clay classes typified in the SS deposit has a specific application in the fine ceramic industry, indicating the prominent potential of RS to characterize industrial materials. (V) 2007 Elsevier B.V. All rights reserved.
dc.description41
dc.description41671
dc.description85
dc.description98
dc.descriptionConselho Nacional de Desenvolvimento Científico e Tecnológico (CNPq)
dc.descriptionConselho Nacional de Desenvolvimento Científico e Tecnológico (CNPq)
dc.languageen
dc.publisherElsevier Science Bv
dc.publisherAmsterdam
dc.publisherHolanda
dc.relationApplied Clay Science
dc.relationAppl. Clay Sci.
dc.rightsfechado
dc.rightshttp://www.elsevier.com/about/open-access/open-access-policies/article-posting-policy
dc.sourceWeb of Science
dc.subjectball-clay
dc.subjectclay minerals
dc.subjectceramic
dc.subjectmineral characterization
dc.subjectreflectance spectroscopy
dc.subjectinfrared spectroscopy
dc.subjectInfrared Vibrational Frequencies
dc.subjectDioctahedral Phyllosilicates
dc.subjectMineral Exploration
dc.subjectOh Group
dc.subjectDiscrimination
dc.subjectSpectra
dc.titleCharacterization of clays used in the ceramic manufacturing industry by reflectance spectroscopy: An experiment in the Sao Simao ball-clay deposit, Brazil
dc.typeArtículos de revistas


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