Process for the preparation of 1.1.1.3.3-pentafluoropropane

Details Process for the preparation of 1.1.1.3.3-pentafluoropropane Process for the preparation of 1.1.1.3.3-pentafluoropropane

2005-08-16

2005-08-16

Price, Elvis O. (Department: 1621)

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

Organic compounds

Halogen containing

C570S164000, C570S165000, C570S166000, C570S168000, C570S169000

Reexamination Certificate

active

06930215

ABSTRACT:
1,1,1,3,3-pentafluoropropane is produced by reaction between 1,1,1,3,3-pentachloropropane and hydrogen fluoride in the presence of a hydrofluorination catalyst. The 1,1,1,3,3-pentachloropropane may advantageously be obtained by reaction between vinyl chloride and tetrachloromethane in the presence of a telomerization catalyst and of a nitrile.

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