GAS-PHASE SYNTHESIS OF MTBE ON FLUORIDE-MODIFIED ZEOLITES

Authors
NIKOLOPOULOS AA KOGELBAUER A GOODWIN JG MARCELIN G
Citation
Aa. Nikolopoulos et al., GAS-PHASE SYNTHESIS OF MTBE ON FLUORIDE-MODIFIED ZEOLITES, Catalysis letters, 39(3-4), 1996, pp. 173-178
Citations number
25
Categorie Soggetti
Chemistry Physical
Journal title
Catalysis letters → ACNP
ISSN journal
1011372X
Volume
39
Issue
3-4
Year of publication
1996
Pages
173 - 178
Database
ISI
SICI code
1011-372X(1996)39:3-4<173:GSOMOF>2.0.ZU;2-E
Abstract
The gas phase synthesis of MTBE was studied using three series of zeol ites modified by ion-exchange with ammonium fluoride, the parent mater ials being HY, H-mordenite, and HZSM-5. Modification of zeolites by fl uoride-exchange was found to enhance the MTBE synthesis activity for a ll three types of zeolites without impairing their excellent selectivi ty to MTBE. The mechanism of activity enhancement by fluoride-modifica tion appears to be related to the formation of extra-lattice Al rather than the presence of fluoride-ions.