Synthesis of intercalated Al-hydroxy-montmorillonite
Montmorillonite from Durango, Mexico, of composition(Si3.88Al0.12)(Al1.41Mg0.59)O10(OH)2(Ca0.07Mg0.11Na0.28K0.06), surface area42.07 m2g-1, d001 spacing 12.50 Å, and pore volume 0.002 cm3g-1, wasintercalated with Al-hydroxy oligomer. The modified clay developeda surface area of 287.86 m2g-1, pore vo...
| Autores: | , , |
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| Tipo de recurso: | artículo |
| Estado: | Versión publicada |
| Fecha de publicación: | 2006 |
| País: | México |
| Institución: | Universidad Nacional Autónoma de México |
| Repositorio: | Redalyc-UNAM |
| OAI Identifier: | oai:redalyc.org:47550107 |
| Acceso en línea: | https://www.redalyc.org/articulo.oa?id=47550107 |
| Access Level: | acceso abierto |
| Palabra clave: | Química clays oligomer silicates Intercalated aluminum montmorillonite |
| Sumario: | Montmorillonite from Durango, Mexico, of composition(Si3.88Al0.12)(Al1.41Mg0.59)O10(OH)2(Ca0.07Mg0.11Na0.28K0.06), surface area42.07 m2g-1, d001 spacing 12.50 Å, and pore volume 0.002 cm3g-1, wasintercalated with Al-hydroxy oligomer. The modified clay developeda surface area of 287.86 m2g-1, pore volume of 0.103 cm3g-1, and d001spacing of 18.70 Å. Dehydration to 70 °C shift the d001 spacing to17.29 Å; dehydroxylation started at 150 °C and by 300 °C had lost1.92 w% and reduced the d001 spacing to 17.34 Å. |
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