2,3,3,3-Tetrafluoropropene → Hydrofluoric Acid

In one embodiment, 1,1,1,2,3-pentafluoropropane is prepared by hydrogenation of 1,1,1,2,3-pentafluoro-2-propene. In another embodiment, 1,1,1,2,3-pentafluoropropene is prepared by hydrogenation of 1,1,1,2,3-pentafluoro-2,3,3-trichloropropane (CFC-215bb). In some embodiments, hydrogen fluoride is produced as a by-product via the unintended dehydrofluorination of 1,1,1,2,3-pentafluoropropane over a hydrogenation catalyst, to produce 1,1,1,2-tetrafluoropropene and hydrogen fluoride. Under the hydrogenation conditions, 1,1,1,2-tetrafluoropropene is hydrogenated to 1,1,1,2-tetrafluoropropane. In some embodiments, hydrogen fluoride is produced as a by-product via the over hydrogenation of 1,1,1,2,3-pentafluoropropane which produces 1,1,1,2-tetrafluoropropane.

ORD record

ord-6a713d1ec6104a81b5c849e16c90c523

Source dataset

uspto-grants-2013_07

DOI

10.6084/m9.figshare.5104873.v1

Patent number

US08486293B2