Synthesis of Zeolite A employing Amazon kaolin waste

Author:

Silva Filho S. H. da1,Bieseki L.1,Silva A. R. da1,Maia A. A. B.2,San Gil R. A. S.3,Pergher S. B. C.1

Affiliation:

1. UFRN, Brazil

2. Universidade da Amazônia, Brazil

3. Universidade Federal do Rio de Janeiro, Brazil

Abstract

Abstract The synthesis of zeolite A employing kaolin waste from paper coating was studied. The kaolin waste was pre-treated at 550 to 800 ºC. For comparison purposes, a sample of zeolite A was also prepared using the IZA procedure. The materials were characterized by 27Al MAS NMR, X-ray diffraction and scanning electron microscopy using a microprobe. Pretreatment was necessary, and the best temperatures were between 600 and 700 ºC. The zeolite A formation was observed in all the prepared materials, reaching 52% crystallinity. On the other hand, the sodalite phase and amorphous materials were also formed.

Publisher

FapUNIFESP (SciELO)

Subject

Ceramics and Composites

Reference17 articles.

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3. Um novo procedimento de síntese da zeólita A empregando argilas naturais;Rigo R.T.;Química Nova,2009

4. Desenvolvimento do processo de síntese da zeólita a e da sodalita a partir de rejeitos de caulim da amazônia com aplicações em adsorção;Maia A.A.B.,2011

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