Synthesis of Zeolite A employing Amazon kaolin waste
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.
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| Principais autores: | , , , , , |
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| Formato: | Digital revista |
| Idioma: | English |
| Publicado em: |
Associação Brasileira de Cerâmica
2015
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| Acesso em linha: | http://old.scielo.br/scielo.php?script=sci_arttext&pid=S0366-69132015000400409 |
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