Global Patent Index - EP 1021390 A1

EP 1021390 A1 2000-07-26 - 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

EP 1021390 A1 (EN)

Application

EP 96939223 A

Priority

  • GB 9602909 W
  • GB 9524268 A

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 (main, further and additional classification)

C07C 19/12; C07C 17/21; C07C 17/383

IPC 8 full level (invention and additional information)

C07C 17/087 (2006.01); C07C 17/21 (2006.01); C07C 17/383 (2006.01); C07C 19/12 (2006.01)

CPC (invention and additional information)

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

EPO simple patent family

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

INPADOC legal status


2007-06-29 [REG HK WD] APPLICATIONS WITHDRAWN, DEEMED TO BE WITHDRAWN, OR REFUSED AFTER PUBLICATION IN HONG KONG

- Document: HK 1029785

2002-04-17 [18D] DEEMED TO BE WITHDRAWN

- Effective date: 20011002

2001-07-11 [17Q] FIRST EXAMINATION REPORT

- Effective date: 20010522

2001-05-02 [RAP1] TRANSFER OF RIGHTS OF AN EP PUBLISHED APPLICATION

- Owner name: INEOS FLUOR HOLDINGS LIMITED

2000-07-26 [17P] REQUEST FOR EXAMINATION FILED

- Effective date: 19980518

2000-07-26 [AK] DESIGNATED CONTRACTING STATES:

- Kind Code of Ref Document: A1

- Designated State(s): AT BE DE DK ES FR GB GR IE IT LU NL PT SE