Process for preparing 1,1,1-trifluoro-2, 2-dichloroethane

Details Process for preparing 1,1,1-trifluoro-2, 2-dichloroethane Process for preparing 1,1,1-trifluoro-2, 2-dichloroethane

2007-02-13

2007-02-13

Price, Elvis O. (Department: 1621)

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

Organic compounds

Halogen containing

C570S164000, C570S165000, C570S166000

Reexamination Certificate

active

10814162

ABSTRACT:
The invention relates to a process for preparing 1,1,1-trifluoro-2,2-dichloroethane (F123).This process consists in placing 1,1,1-trifluoro-2-chloroethane (F133a) in contact with chlorine in the presence of hydrogen fluoride and a fluorination catalyst.F133amay be obtained by fluorination of trichloroethylene, and the F123 may be subsequently fluorinated to F125.

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