EP 3077351 A1 20161012 - PROCESS FOR PRODUCING 1-CHLORO-2,2-DIFLUOROETHANE
Title (en)
PROCESS FOR PRODUCING 1-CHLORO-2,2-DIFLUOROETHANE
Title (de)
VERFAHREN ZUR HERSTELLUNG VON 1-CHLOR-2,2-DIFLUORETHAN
Title (fr)
PROCEDE DE FABRICATION DU 1-CHLORO-2,2,DIFLUOROETHANE
Publication
Application
Priority
- FR 1362095 A 20131204
- FR 2014053083 W 20141128
Abstract (en)
[origin: CA2931400A1] The present invention relates to the field of saturated fluorohydrocarbons. The subject matter thereof is more particularly the production of 1-chloro-2,2-difluoroethane from 1,1,2-trichloroethane and/or 1,2-dichloroethylene. The present invention provides a process for producing 1-chloro-2,2-difluoroethane from 1,1,2-trichloroethane and/or 1,2-dichloroethylene comprising (i) at least one step during which the 1,1,2-trichloroethane and/or the 1,2-dichloroethylene reacts or react with hydrofluoric acid in the gas phase, optionally in the presence of an oxidizing agent, in the presence or in the absence of a fluorination catalyst, to give a stream comprising 1-chloro-2,2-difluoroethane, hydrochloric acid, hydrofluoric acid and at least one C compound(s) chosen from 1-chloro-2-fluoroethylenes (cis and trans), 1,2-dichloro-2-fluoroethane and, optionally, unreacted 1,1,2-trichloroethane and/or 1,2-dichloroethylene.
IPC 8 full level
C07C 17/20 (2006.01); C07C 17/383 (2006.01); C07C 19/12 (2006.01)
CPC (source: EP US)
C07C 17/206 (2013.01 - EP US); C07C 17/21 (2013.01 - EP US); C07C 17/383 (2013.01 - EP US); C07C 19/12 (2013.01 - EP US); C07C 21/18 (2013.01 - EP US); C07B 2200/09 (2013.01 - EP US)
Citation (search report)
See references of WO 2015082812A1
Designated contracting state (EPC)
AL AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HR HU IE IS IT LI LT LU LV MC MK MT NL NO PL PT RO RS SE SI SK SM TR
Designated extension state (EPC)
BA ME
DOCDB simple family (publication)
FR 3014099 A1 20150605; FR 3014099 B1 20170113; CA 2931400 A1 20150611; CN 105793219 A 20160720; CN 105793219 B 20180925; EP 3077351 A1 20161012; FR 3014105 A1 20150605; FR 3014105 B1 20151225; JP 2017501992 A 20170119; JP 6634373 B2 20200122; US 2017267612 A1 20170921; US 9981891 B2 20180529; WO 2015082812 A1 20150611
DOCDB simple family (application)
FR 1362095 A 20131204; CA 2931400 A 20141128; CN 201480065920 A 20141128; EP 14821753 A 20141128; FR 1459421 A 20141002; FR 2014053083 W 20141128; JP 2016536654 A 20141128; US 201415101733 A 20141128