Estudo da metodologia de sí­ntese de zeólitas ZSM-5

Valmir Calsavara; Carla Kazumi Carrascoza Yoshida; Henrique Delfante de Pádua Cardoso; Nádia Regina Camardo Fernandes Machado

doi:10.4025/actascitechnol.v22i0.3007

Study of the methodology of ZSM-5 zeolite synthesis

Authors

Valmir Calsavara UEM
Carla Kazumi Carrascoza Yoshida UEM
Henrique Delfante de Pádua Cardoso UEM
Nádia Regina Camardo Fernandes Machado UEM

DOI:

https://doi.org/10.4025/actascitechnol.v22i0.3007

Keywords:

zeólitas ZSM-5, síntese, sementes de cristalização

Abstract

Methodologies of ZSM-5 zeolite synthesis proposed in the literature were evaluated. Characterization of the synthesized samples was done by atomic absorption, infrared spectroscopy, X-ray diffraction and surface area analysis. Several parameters, such as source and order of addition of reagents, nature of template, molar ratios in the reaction medium, seeding, time and temperature of crystallization, were analyzed. The use of ethanol instead of nitrogenated templates, combined with the use of a seed proportion well above that recommended in the literature led to a methodology of ZSM-5 synthesis that was found to be productive and with good reproducibility. The characterization of the obtained samples confirmed the production of ZSM-5 zeolite with a good crystallinity. The synthesized zeolites have been used successfully as crystallization seeds in new syntheses.

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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

2008-05-13

How to Cite

Calsavara, V., Yoshida, C. K. C., Cardoso, H. D. de P., & Machado, N. R. C. F. (2008). Study of the methodology of ZSM-5 zeolite synthesis. Acta Scientiarum. Technology, 22, 1179–1184. https://doi.org/10.4025/actascitechnol.v22i0.3007

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Issue

Vol. 22 (2000)

Section

Chemical Engineering

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