EP 3519378 A1 20190807 - METHOD FOR PRODUCING 1-CHLORO-2,2-DIFLUOROETHANE
Title (en)
METHOD FOR PRODUCING 1-CHLORO-2,2-DIFLUOROETHANE
Title (de)
VERFAHREN ZUR HERSTELLUNG VON 1-CHLORO-2,2-DIFLUORETHAN
Title (fr)
PROCEDE DE FABRICATION DU 1-CHLORO-2,2-DIFLUOROETHANE
Publication
Application
Priority
- FR 1659079 A 20160927
- FR 2017052559 W 20170925
Abstract (en)
[origin: WO2018060576A1] The invention relates to a method for producing 1-chloro-2,2-difluoroethane from 1,1,2-trichloroethane, comprising at least one step of separating 1-chloro-2,2-difluoroethane from the organic phase produced during the method; said step comprising a) purification of the organic phase obtained in step (iii) so as to form a first stream comprising 1-chloro-difluoroethane and hydrofluoric acid and a second stream comprising 1,1,2-trichloroethane; b) the elimination of the hydrofluoric acid from said first stream in order to form a third stream comprising 1-chloro-difluoroethane; and c) a purification of said third stream comprising 1-chloro-difluoroethane.
IPC 8 full level
C07C 17/20 (2006.01); C07C 19/12 (2006.01)
CPC (source: EP US)
C07C 17/206 (2013.01 - EP US); C07C 17/38 (2013.01 - US); C07C 17/383 (2013.01 - US); C07C 19/12 (2013.01 - US)
Citation (search report)
See references of WO 2018060576A1
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 3056584 A1 20180330; FR 3056584 B1 20200508; CN 109790089 A 20190521; EP 3519378 A1 20190807; JP 2019529450 A 20191017; MX 2019003139 A 20190617; RU 2019112250 A 20201029; US 10640439 B2 20200505; US 2020002253 A1 20200102; WO 2018060576 A1 20180405
DOCDB simple family (application)
FR 1659079 A 20160927; CN 201780059443 A 20170925; EP 17780836 A 20170925; FR 2017052559 W 20170925; JP 2019515596 A 20170925; MX 2019003139 A 20170925; RU 2019112250 A 20170925; US 201716333600 A 20170925