Um novo procedimento de síntese da zeólita A empregando argilas naturais
This work proposes the synthesis of zeolite A by IZA standard proceedures starting from a natural clay. The clay was used in its natural form and after calcination at 900ºC. The resulting materials were characterized by X-ray diffraction (XRD), scanning electron microscopy (SEM) and porosity analysis by nitrogen adsorption. Results showed low surface area for Na-A zeolite in sodium form, but a higher one in CaA based on the nitrogen accessibility. The presence of cubic crystals for the A phase was observed in the SEM micrographies. The new procedure starting from natural clay favors the formation of sodalite while that using the calcinated clay gives A.
Saved in:
| Main Authors: | , , , |
|---|---|
| Format: | Digital revista |
| Language: | Portuguese |
| Published: |
Sociedade Brasileira de Química
2009
|
| Online Access: | http://old.scielo.br/scielo.php?script=sci_arttext&pid=S0100-40422009000100004 |
| Tags: |
Add Tag
No Tags, Be the first to tag this record!
|