Please use this identifier to cite or link to this item: http://repositorio.ufpa.br/jspui/handle/2011/6064
metadata.dc.type: Artigo de Periódico
Issue Date: Aug-2014
metadata.dc.creator: MENEZES, Raquel Aranha de
PAZ, Simone Patrícia Aranha da
ANGÉLICA, Rômulo Simões
NEVES, Roberto de Freitas
PERGHER, Sibele Berenice Castellã
Title: Color and shade parameters of ultramarine zeolitic pigments synthesized from kaolin waste
Citation: MENEZES, Raquel Aranha de et al. Color and shade parameters of ultramarine zeolitic pigments synthesized from kaolin waste. Materials Research, São Carlos, v. 17, supl. 1, p. 23-27, ago. 2014. Disponível em: <http://www.scielo.br/pdf/mr/2014nahead/aop_matres_217413.pdf>. Acesso em: 30 jul. 2014. <http://dx.doi.org/10.1590/S1516-14392014005000078>.
Abstract: Ultramarine pigments were successful synthesized from zeolite A obtained from kaolin waste. This waste has been used as an excellent source of silicon and aluminum for zeolite synthesis because of its high kaolinite concentrations and low contents of other accessory minerals. The cost is naturally less than the industrialized product. Color additives (Sulfur and Sodium Carbonate) were mixed with different proportions of zeolite A and further calcined for 5 h at 500 °C. They were characterized by XRD and XRF in addition to visual classification by color and shade. These products show colors from blue to green at different shades, both influenced by the amount of additives and cooling rate after calcination. Thus, a different quantity of the same additives in the same zeolitic matrix provides an increase in the color intensity. Cooling rate after calcination induces the color change which is substantially important in the pigments production.
Keywords: Síntese
Resíduo de caulim
Caulim
Zeólita A
Cores
Pará - Estado
Amazônia brasileira
Pigmentos marinhos
ISSN: 1516-1439
metadata.dc.rights: Acesso Aberto
Appears in Collections:Artigos Científicos - IG

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