F-19 AND AL-27 MAS NMR-STUDY OF THE DEHYDROFLUORINATION REACTION OF HYDROFLUOROCARBON-134 OVER BASIC FAUJASITE ZEOLITES

Authors
GREY CP CORBIN DR
Citation
Cp. Grey et Dr. Corbin, F-19 AND AL-27 MAS NMR-STUDY OF THE DEHYDROFLUORINATION REACTION OF HYDROFLUOROCARBON-134 OVER BASIC FAUJASITE ZEOLITES, Journal of physical chemistry, 99(46), 1995, pp. 16821-16823
Citations number
15
Categorie Soggetti
Chemistry Physical
Journal title
Journal of physical chemistry → ACNP
ISSN journal
00223654
Volume
99
Issue
46
Year of publication
1995
Pages
16821 - 16823
Database
ISI
SICI code
0022-3654(1995)99:46<16821:FAAMNO>2.0.ZU;2-4
Abstract
Dehydrofluorination of hydrofluorocarbon-134 (CF2HCF2H) occurs over th e basic zeolite NaX at 275 degrees C, to produce HFC-1123 (CF2CFH) and tetrahedrally-coordinated aluminum fluoride species. Under moist cond itions, the tetrahedral aluminum fluoride species are hydrolyzed and s ix-coordinate species are formed. The framework of the less basic zeol ite NaY is not attacked by HFC-134 under similar conditions.