Back to results
US 5,629,460 AGranted
Process for the preparation of 1,1,1,3,3,3-hexafluoro-2-propanone
AssigneeAlliedSignal Inc.
InventorsAlagappan Thenappan, Michael Van Der Puv, Richard Eibeck
Life of this patent
Estimating the term…
Abstract
A vapor phase process for the preparation of fluorinated ketones, such as 1,1,1,3,3,3-hexafluoro-2-propanone via oxidation of hydrofluorocarbons, such as 1,1,1,3,3,3-hexafluoropropane, with an oxidizing agent and elemental fluorine at temperatures ranging from 50.degree. C. to 300.degree. C. and residence times ranging from 2 to 60 seconds.
Claims16
A process for preparation of fluorinated ketones comprising:
- contacting an hydrofluorocarbon with an oxidizing agent and fluorine to produce said fluorinated ketones.
A process for preparation of fluorinated ketones comprising:
- contacting 1,1,1,3,3,3-hexafluoropropane with air and fluorine, wherein a molar ratio of said fluorine to said 1,1,1,3,3,3-hexafluoropropane is from 0.1 to 0.5 and a molar ratio of said air to said 1,1,1,3,3,3-hexafluoropropane is from 2 to 10.
Dependencies are inferred from the claim text.