Study on the NaOH/metakaolin Ratio and Crystallization Time for Zeolite a Synthesis from Kaolin Using Statistical Design
dc.contributor.author | Pergher, Sibele Berenice Castellã | |
dc.contributor.author | Silva Filho, Severino Higino da | |
dc.contributor.author | Bieseki, Lindiane | |
dc.contributor.author | Maia, Ana Aurea B. | |
dc.contributor.author | Treichel, Helen | |
dc.contributor.author | Angelica, Rômulo Simões | |
dc.date.accessioned | 2020-07-13T17:23:27Z | |
dc.date.available | 2020-07-13T17:23:27Z | |
dc.date.issued | 2017-04-13 | |
dc.description.resumo | The NaOH/metakaolin ratio and crystallization time were studied for the synthesis of zeolite NaA from a sample of kaolin from a Capim mine. The tests were carried out by using statistical design with axial points and replication of the central point. The samples obtained were characterized by X-ray diffraction (DRX), scanning electron microscopy and chemical analysis using a microprobe EPMA. The results showed that there is a relationship between the amount of NaOH added and crystallization time. The tests carried out using the lowest NaOH/metakaolin ratio (0.5) and the shortest time (4 h) produced a non-crystalline material. On the other hand, increasing the NaOH/metakaolin ratio and the crystallization time led to the formation of a NaA phase with a high structural level, but with the presence of a sodalite phase as an impurity | pt_BR |
dc.identifier.citation | SILVA FILHO, Severino Higino da; BIESEKI, Lindiane; MAIA, Ana Aurea B.; TREICHEL, Helen; ANGELICA, Rômulo Simões; PERGHER, Sibele Berenice Castellã. Study on the NaOH/metakaolin Ratio and Crystallization Time for Zeolite a Synthesis from Kaolin Using Statistical Design. Materials Research, [s.l.], v. 20, n. 3, p. 761-767, 13 abr. 2017. ISSN 1980-5373 versão online. Disponível em: https://www.scielo.br/scielo.php?script=sci_arttext&pid=S1516-14392017000300761&lng=en&tlng=en. Acesso em 13 jul. 2020. http://dx.doi.org/10.1590/1980-5373-mr-2015-0631 | pt_BR |
dc.identifier.doi | 10.1590/1980-5373-mr-2015-0631 | |
dc.identifier.issn | 1516-1439 | |
dc.identifier.uri | https://repositorio.ufrn.br/jspui/handle/123456789/29581 | |
dc.language | en | pt_BR |
dc.publisher | ABM, ABC, ABPol | pt_BR |
dc.rights | Attribution 3.0 Brazil | * |
dc.rights.uri | http://creativecommons.org/licenses/by/3.0/br/ | * |
dc.subject | Zeolite NaA | pt_BR |
dc.subject | Metakaolin | pt_BR |
dc.subject | Statistical design | pt_BR |
dc.title | Study on the NaOH/metakaolin Ratio and Crystallization Time for Zeolite a Synthesis from Kaolin Using Statistical Design | pt_BR |
dc.type | article | pt_BR |
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