EP 1021390 A1 20000726 - PRODUCTION OF CHLORO-2,2,2-TRIFLUOROETHANE
Title (en)
PRODUCTION OF CHLORO-2,2,2-TRIFLUOROETHANE
Title (de)
HERSTELLUNG VON CHLOR-2,2,2-TRIFLUORETHAN
Title (fr)
PRODUCTION DE CHLORO-2,2,2-TRIFLUOROETHANE
Publication
Application
Priority
- GB 9602909 W 19961126
- GB 9524268 A 19951128
Abstract (en)
[origin: WO9719903A1] A process for producing chloro-2,2,2-trifluoroethane as a co-product of the production of 1,1,1,2-tetrafluoroethane by hydrofluorination of trichloroethylene which comprises (i) treating the 1,1,1,2-tetrafluoroethane product stream containing chloro-2,2,2-trifluoroethane and hydrogen fluoride to form a mixture of 1,1,1,2-tetrafluoroethane and chloro-2,2,2-trifluoroethane and (ii) distilling said mixture to separate essentially pure chloro-2,2,2-trifluoroethane from the mixture. A preferred distillation in step (ii) comprises (iia) distilling the mixture to separate essentially pure 1,1,1,2-tetrafluoroethane and form a second mixture of 1,1,1,2-tetrafluoroethane and chloro-2,2,2-trifluoroethane and (iib) distilling said second mixture to separate essentially pure chloro-2,2,2-trifluoroethane from the second mixture.
IPC 1-7
IPC 8 full level
C07C 17/087 (2006.01); C07C 17/21 (2006.01); C07C 17/383 (2006.01); C07C 19/12 (2006.01)
CPC (source: EP)
C07C 17/21 (2013.01); C07C 17/383 (2013.01); C07C 19/12 (2013.01)
Citation (search report)
See references of WO 9719903A1
Designated contracting state (EPC)
AT BE DE DK ES FR GB GR IE IT LU NL PT SE
DOCDB simple family (publication)
WO 9719903 A1 19970605; AU 7635596 A 19970619; BR 9611660 A 19990223; CA 2238508 A1 19970605; CN 1207723 A 19990210; EP 1021390 A1 20000726; GB 9524268 D0 19960131; JP 2000501391 A 20000208; MX 9804231 A 19980930
DOCDB simple family (application)
GB 9602909 W 19961126; AU 7635596 A 19961126; BR 9611660 A 19961126; CA 2238508 A 19961126; CN 96199775 A 19961126; EP 96939223 A 19961126; GB 9524268 A 19951128; JP 52026697 A 19961126; MX 9804231 A 19980528