Vapor phase process for making 1,1,1,3,3-pentafluoropropane and

Details Vapor phase process for making 1,1,1,3,3-pentafluoropropane and Vapor phase process for making 1,1,1,3,3-pentafluoropropane and

1996-09-19

1998-01-20

Siegel, Alan

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

Organic compounds

Halogen containing

570167, 570168, 570169, C07C 1708

Patent

active

057103526

ABSTRACT:
A method for the preparation of 1,1,1,3,3-pentafluoropropane (HFC-245fa) and 1-chloro-3,3,3-trifluoropropene (HCFC-1233). 1,1,1,3,3-pentachloropropane (HCC-240fa) is fluorinated with HF in a vapor phase in the presence of a vapor phase catalyst. The HCFC-1233 and any co-produced 1,3,3,3-tetrafluoropropene (HFC-1234) are recycled for further fluorination by HF for a greater than 99% HCC-240fa conversion.

REFERENCES:
patent: 5574192 (1996-11-01), Van Der Puy et al.

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