dc.contributorUniversidade Estadual Paulista (UNESP)
dc.creatorVollet, Dimas R.
dc.creatorMacedo, JoséCarlos D.
dc.creatorMascarenhas, Yvonne P.
dc.date2014-05-27T11:17:56Z
dc.date2016-10-25T18:13:18Z
dc.date2014-05-27T11:17:56Z
dc.date2016-10-25T18:13:18Z
dc.date1994-02-01
dc.date.accessioned2017-04-06T00:45:15Z
dc.date.available2017-04-06T00:45:15Z
dc.identifierApplied Clay Science, v. 8, n. 6, p. 397-404, 1994.
dc.identifier0169-1317
dc.identifierhttp://hdl.handle.net/11449/64464
dc.identifierhttp://acervodigital.unesp.br/handle/11449/64464
dc.identifier10.1016/0169-1317(94)90035-3
dc.identifier2-s2.0-0028184118
dc.identifierhttp://dx.doi.org/10.1016/0169-1317(94)90035-3
dc.identifier.urihttp://repositorioslatinoamericanos.uchile.cl/handle/2250/886309
dc.descriptionPore structure of dealuminated kaolin and metakaolin was studied by small-angle X-ray scattering (SAXS). Both parent kaolin and metakaolin have about 10% of the total pore volume provided by globular pores with 105 Å mean pore size. Their surface area is about 14 m2/g. Acid dealumination of kaolin causes an increase of its globular pore volume without an appreciable change in the mean pore size, its surface area increasing up to about 90 m2/g. Acid dealumination of metakaolin enhances the globular pore volume, although there is generation of slit-shaped pores with a narrow thickness distribution whose mean value is 14 Å. This interlayer spacing causes an increase in surface area of about 190 m2/g by SAXS. © 1994.
dc.languageeng
dc.relationApplied Clay Science
dc.rightsinfo:eu-repo/semantics/closedAccess
dc.subjectdealumination
dc.subjectkaolin
dc.subjectpore structure
dc.subjectsmall angle X-ray scattering
dc.subjectAcids
dc.subjectCharacterization
dc.subjectClay products
dc.subjectPorosity
dc.subjectSurface properties
dc.subjectX ray analysis
dc.subjectAcid dealumination
dc.subjectAcid treatment
dc.subjectGlobular pore volume
dc.subjectMetakaolin
dc.subjectSmall angle X ray scattering (SAXS)
dc.subjectKaolin
dc.titlePore structure characterization of kaolin, metakaolin, and their acid-treated products using small-angle X-ray scattering
dc.typeOtro


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