Synthesis of high value-added zeolitic materials using glass powder residue as a silica source

• Autor(a) principal: Alves, J. A. B. L. R.
• Data de Publicação: 2014
• Outros Autores: Dantas, E. R. S., Pergher, Sibele Berenice Castellã, Melo, Dulce Maria de Araújo., Melo, Marcus Antonio de Freitas
• Tipo de documento: Artigo
• Idioma: eng
• Título da fonte: Repositório Institucional da UFRN
• Texto Completo: https://repositorio.ufrn.br/jspui/handle/123456789/29632
• topic: Glass powder; Zeolite A; Zeolite X

In this work, zeolite A was obtained using alkaline fusion followed by a hydrothermal treatment of glass powder residue derived from the manufacturing of glass. The following parameters were evaluated: leaching of the stock material (silica source), mineralizing agent, alumina source, and the alkaline fusion and crystallization temperatures. The synthesized materials were characterized by chemical analysis using energy dispersive X-ray analysis (EDX), X-ray diffraction (XRD) and scanning electron microscopy (SEM). The XRD and SEM results showed that zeolite A was obtained under almost all of the evaluated parameters. The use of pseudoboehmite as an aluminum source led to the formation of zeolite X as a secondary phase and a change in the temperature of fusion, which at 500 °C, there was formation of zeolite A, hydrated sodalite and zeolite X