Azeotropic composition, comprising 1, 1, 1,...

Details Azeotropic composition, comprising 1, 1, 1,... Azeotropic composition, comprising 1, 1, 1,...

2007-02-27

2007-02-27

Price, Elvis O. (Department: 1621)

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

Organic compounds

Halogen containing

C570S153000, C570S156000, C570S165000, C570S166000, C570S167000, C570S168000, C570S170000, C570S169000, C570S177000, C203S081000, C203S082000, C203S084000, C252S181100, C252S182120

Reexamination Certificate

active

09831598

ABSTRACT:
A mixture comprising at least 1,1,1,3,3-pentafluoropropane and 1,1,1-trifluoro-3-chloro-2-propene is subjected to a distillation operation, and thereby, a distillate comprising an azeotropic composition consisting substantially of 1,1,1,3,3-pentafluoropropane and 1,1,1-trifluoro-3-chloro-2-propene is obtained and a bottom product comprising 1,1,1,3,3-pentafluoropropane or 1,1,1-trifluoro-3-chloro-2-propene which each is separated and purified.

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