Separation of hydrogen fluoride from a fluorocarbon/hydrogen flu

Details Separation of hydrogen fluoride from a fluorocarbon/hydrogen flu Separation of hydrogen fluoride from a fluorocarbon/hydrogen flu

1996-07-03

1999-04-20

Langel, Wayne

Chemistry of inorganic compounds

Halogen or compound thereof

Hydrogen halide

570177, C01B 719, C07C 1738

Patent

active

058956395

ABSTRACT:
The invention provides a process for the separation of azeotropic mixtures of fluorocarbons from hydrogen fluoride. The most preferred fluorocarbon for this invention is 1,1,1,3,3-pentafluoropropane, which is also known as HFC-245fa. The separation in conducted by adding sulfuric acid to the mixture while the mixture is in either the liquid or gaseous states.

REFERENCES:
patent: 3872629 (1975-03-01), Jones
patent: 3873629 (1975-03-01), Jones
patent: 5196616 (1993-03-01), Lee et al.
patent: 5211817 (1993-05-01), Adams et al.
patent: 5426254 (1995-06-01), Galland et al.
patent: 5632966 (1997-05-01), van der Puy et al.

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