Organic compounds -- part of the class 532-570 series – Organic compounds – Halogen containing
Reexamination Certificate
2006-05-30
2006-05-30
Richter, Johann (Department: 1621)
Organic compounds -- part of the class 532-570 series
Organic compounds
Halogen containing
C570S164000, C570S165000, C570S166000
Reexamination Certificate
active
07053252
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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Boussand Béatrice
Jorda Eric
Atofina
Price Elvis O.
Richter Johann
Smith , Gambrell & Russell, LLP
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