W. Mao, Bo Wang, Yangbo Ma
Apr 5, 2014
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0
Influential Citations
13
Citations
Journal
Catalysis Communications
Abstract
Abstract For synthesis of 2,3,3,3-tetrafluoropropene, 2-chloro-3,3,3-trifluoropropene (HCFO-1233xf) is an essential intermediate. We here report the catalytic fluorination of 1,1,2,3-tetrachloropropene (4 E ) to 2-chloro-3,3,3-trifluoropropene (HCFO-1233xf) over fluorinated chromia catalyst modified by Y or La. A highly selective and stable catalyst was achieved over the La promoted fluorinated chromia, where almost 100% 4 E conversion and HCFO-1233xf selectivity were obtained for a 96 h TOS. The results of preliminary characterization indicated that surface CrO x F y species and BET area of catalyst were related with the 4 E fluorination activity.