Production of perfluoropropane
AssigneeAllied Corporation
InventorsHenry R. Nychka, John B. Hino, Richard E. Eibeck, Martin A. Robinson
Life of this patent
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Abstract
Octafluoropropane or perfluoropropane is produced by introducing fluorine into an elongated inner zone surrounded by a porous member which is substantially resistant to fluorine corrosion and introducing a three carbon compound which is propane, a partially fluorinated propane, propene, a partially fluorinated propene, hexafluoropropene or mixtures thereof outside the porous member. When the porous member is metal, a perfluorinated diluent is used. When the porous member is fused alumina, conventional diluents such as nitrogen, or even no diluent may be employed.
Claims10
A method of preparing octafluoropropane which comprises:
- (a) introducing a first gaseous reactant stream comprising fluorine into an elongated inner zone surrounded by porous member which is substantially resistant to fluorine corrosion;
- (b) introducing a second gaseous reactant stream outside the porous member comprising a three carbon compound selected from the group consisting of propane, propene and mixtures thereof;
- and
- (c) recovering octafluoropropane from the effluent outside the porous member;
- the pressure in the elongated inner zone being greater than the pressure outside the porous member.
Dependencies are inferred from the claim text.