Process for the manufacture of 1,1,1,3,3-pentafluoropropane and

Details Process for the manufacture of 1,1,1,3,3-pentafluoropropane and Process for the manufacture of 1,1,1,3,3-pentafluoropropane and

1996-07-03

1998-06-09

Shaver, Paul F.

Organic compounds -- part of the class 532-570 series

Organic compounds

Halogen containing

C07C 1708

Patent

active

057637067

ABSTRACT:
An integrated manufacturing process for producing HFC-245fa, HFC-236fa or a mixture thereof by reaction of HCC-240fa, HCC-230 or a mixture thereof with HF. HCC-240fa, HCC-230 or a mixture thereof is reacted with hydrogen fluoride in a liquid phase in the presence of a fluorination catalyst. Optionally, produced HCl is removed by distillation. HF present is thereafter recovered by liquid-vapor extraction. Unsaturated compounds are then removed by photochlorination and HFC-245fa, HFC-236fa or a mixture thereof is obtained by distillation.

REFERENCES:
patent: 5574192 (1996-11-01), VanDerPuy et al.
patent: 5616819 (1997-04-01), Boyce et al.
patent: 5659093 (1997-08-01), Takubo et al.

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