REMOVAL OF DIQUATERNARY AMMONIUM CATIONS FROM AS-SYNTHESIZED SSZ-16 ZEOLITE

Autor: Tatana Supinkova, Ivan Jirka, Jan Drahokoupil, Jan Langmaier, Vlastimil Fila, Libor Brabec, Milan Kocirik
Jazyk: angličtina
Rok vydání: 2017
Předmět:
Zdroj: Acta Polytechnica CTU Proceedings, Vol 9, Iss 0, Pp 26-31 (2017)
Druh dokumentu: article
ISSN: 2336-5382
DOI: 10.14311/APP.2017.9.0026
Popis: Zeolites are stable microporous aluminosilicates with numerous applications in chemical technology such as separation of species and catalytic transformations. Our study is focused on a weakly explored zeolite SSZ-16 with pore constrictions defined by 8-membered oxygen rings. Key results are the preparation of Et6-diquat-5 dication used as a structure directing agent (SDA) and finding the optimum synthesis conditions with respect to zeolite phase purity. Stability of SDA was examined in conditions similar to those of autoclave synthesis (concentration, pH, temperature). Moreover, the content and location of SDA species in zeolite phase and conditions of SDA decomposition were investigated.
Databáze: Directory of Open Access Journals