"PROCESS FOR THE PREPARATION OF 1,1,1-TRIFLUORO-2,2-DICHL OROETHANE"
Application 173/DEL/2001 published 2006-12-08, filed 2001-02-19
The invention relates to a process for the preparation of 1,1,1-trifluoro-2,2-dichloroethane (F123). This process consists in bringing 1,1,1-trifluoro-2-chloroethane (F133a) into contact with chlorine in the presence of hydrogen fluoride and of a fluorination catalyst. The F133a can be obtained by chlorination of .trichloroethylene and the F123 can subsequently be fluorinated to F125.
Applicant
1)ATOFINA
:4/8 COURS MICHELET, LA DEFE 10, 92091 PARIS LA DEFENSE CEDEX, FRANCE
Inventor
1)ATOFINA 2)JORDA ERIC 3)LACROIX ERIC 4)PERDRIEUX SYLVAIN
International Info
Classification: A61K 31/58