Journal of Physical Chemistry, Vol.99, No.46, 16821-16823, 1995
F-19 and Al-27 MAS NMR-Study of the Dehydrofluorination Reaction of Hydrofluorocarbon-134 over Basic Faujasite Zeolites
Dehydrofluorination of hydrofluorocarbon-134 (CF2HCF2H) occurs over the basic zeolite NaX at 275 degrees C, to produce HFC-1123 (CF2CFH) and tetrahedrally-coordinated aluminum fluoride species. Under moist conditions, the tetrahedral aluminum fluoride species are hydrolyzed and six-coordinate species are formed. The framework of the less basic zeolite NaY is not attacked by HFC-134 under similar conditions.
Keywords:SOLIDS