| Autor: |
Mahiceth Quintero, Manuel Perez, Hildemaro Meléndez, Jairo Rondon, Freddy Imbert |
| Jazyk: |
English<br />Spanish; Castilian |
| Rok vydání: |
2012 |
| Předmět: |
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| Zdroj: |
Avances en Química, Vol 7, Iss 3, Pp 223-226 (2012) |
| Druh dokumentu: |
article |
| ISSN: |
1856-5301 |
| Popis: |
Beta zeolite is normally obtained with Si/Al 5 and infinity ratios, using tetraethylammonium (TEA) as templante. Important parameters in the TEA-Beta synthesis are alkali cation concentration, the type of cation used, the concentration of hydroxide, and the amount of templante, the temperature and the source of silica used. The synthesis with ratios Si:Al above 80 are generally quite difficult to achieve, but have recently been reported with all silica synthesis using TEA as templante. Their main applications are in the catalytic processes of hydrocarbon transformation (alkylation), in the inorganic membrane preparation and like “seed” in the synthesis of other zeolites. It is a microporous solid, with a unique system of channels and characteristic a chemical composition. In this work Beta zeolite was synthesized with aluminum sulfate like aluminum source. The phase identified in the pattern of X-ray diffraction obtained, coincides with the structure of the zeolite Beta. |
| Databáze: |
Directory of Open Access Journals |
| Externí odkaz: |
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