Utilização de xisto retortado como matéria-prima em sí­ntese de zeólitas - DOI: 10.4025/actascitechnol.v28i1.1283

Denise Maria Malachini Miotto; Nádia Regina Camardo Fernandes Machado

doi:10.4025/actascitechnol.v28i1.1283

Use of oil shale ash as raw material to synthesize zeolites - DOI: 10.4025/actascitechnol.v28i1.1283

Authors

Denise Maria Malachini Miotto UEM
Nádia Regina Camardo Fernandes Machado UEM

DOI:

https://doi.org/10.4025/actascitechnol.v28i1.1283

Keywords:

oil shale ash, zeolites, synthesis, refluxing, crystallinity

Abstract

The oil shale ash, by-product of the Petrosix process, was used as raw material to synthesize zeolite-type materials. The synthesis procedure was the alkaline fusion followed by refluxing, with three different starting material compositions. Two products were selected and chemically, structurally and morphologically analyzed. The compound (1) was obtained from the composition 3SiO₂.Al₂O₃.5,7Na₂O.228H₂O after 2h30min of refluxing, presented the largest Na-X zeolite crystallinity, while the compound (2), produced with the composition 3SiO2.Al2O3.10,5Na2O.325H2O after 30min of refluxing, obtained the largest Na-A zeolite content. The products were characterized by X-ray diffraction, physical adsorption of nitrogen, X-ray fluorescence, ²⁹Si nuclear magnetic resonance and scanning electron microscopy. The results showed that all Si and Al present in the zeolite-type compounds were in the crystalline form, and the SEM micrographies indicated the presence of cubic crystals of Na-A and -X zeolites structures.

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Author Biography

Nádia Regina Camardo Fernandes Machado, UEM

Possui graduação em Engenharia Química pela Escola de Química da Universidade Federal do Rio de Janeiro (1978), mestrado em Engenharia Química (Catálise, Cinética e Reatores Químicos) pela COPPE/UFRJ (1983) e Doutorado em Eng. Química (CCRQ Reforma de Metanol) pela COPPE/UFRJ (1995). Exerce a função de professora no Departamento de Engenharia Química na Universidade Estadual de Maringá. Principais temas de pesquisa: produção de Hidrogênio pela reforma do etanol com vapor d água; Catálise Ambiental (fotocatálise) e Síntese de Zeólitas com aplicações em catálise e purificação de efluentes por adsorção e troca iônica. Já orientou 52 trabalhos de Iniciação Científica, 15 dissertações de Mestrado e 5 teses de Doutorado. Publicou 27 artigos em revistas especializadas e 177 comunicações em eventos científicos Currículo Lattes

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Published

2008-03-20

How to Cite

Miotto, D. M. M., & Machado, N. R. C. F. (2008). Use of oil shale ash as raw material to synthesize zeolites - DOI: 10.4025/actascitechnol.v28i1.1283. Acta Scientiarum. Technology, 28(1), 39–45. https://doi.org/10.4025/actascitechnol.v28i1.1283

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Issue

Vol. 28 No. 1 (2006)

Section

Chemical Engineering

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0.8

2019CiteScore

36th percentile