Azeotrope or azeotropic composition containing pentafluoropropane and water, and method for producing pentafluoropropane
AssigneeDaikin Industries, Ltd.
InventorsYuuko OHHIGASHI, Tatsuya TAKAKUWA, Kazuhiro TAKAHASHI
Life of this patent
Estimating the term…
Abstract
An object of the present invention is to provide a method that can efficiently remove water contained in pentafluoropropane. Provided as a solution is a method comprising distilling a composition comprising pentafluoropropane and water to thereby extract pentafluoropropane with a water content higher than that of the composition as a first stream, and pentafluoropropane with a water content lower than that of the composition as a second stream.
Claims16
(canceled)
An azeotropic or azeotrope-like composition comprising 1,1,1,2,3-pentafluoropropane (HFC-245eb) and water.
(canceled)
A method for producing a composition comprising pentafluoropropane with a water content lower than that of a starting composition comprising pentafluoropropane and water, the method comprising:
- (1) distilling the starting composition to thereby extract a pentafluoropropane-containing composition with a water content higher than that of the starting composition as a first stream, and a pentafluoropropane-containing composition with a water content lower than that of the starting composition as a second stream.
Dependencies are inferred from the claim text.