EP 2922809 A1 20150930 - DEHYDROCHLORINATION OF CHLORINATED REACTANTS TO PRODUCE 1,1,1,4,4,4-HEXAFLUORO-2-BUTYNE
Title (en)
DEHYDROCHLORINATION OF CHLORINATED REACTANTS TO PRODUCE 1,1,1,4,4,4-HEXAFLUORO-2-BUTYNE
Title (de)
DEHYDROCHLORIERUNG VON CHLORIERTEN REAGENZIEN ZUR HERSTELLUNG VON 1,1,1,4,4,4-HEXAFLUOR-2-BUTYN
Title (fr)
DÉSHYDROCHLORATION DE RÉACTIFS CHLORÉS POUR PRODUIRE LE 1,1,1,4,4,4-HEXAFLUORO-2-BUTYNE
Publication
Application
Priority
- US 201261707231 P 20120928
- US 201261707220 P 20120928
- US 2013062080 W 20130927
Abstract (en)
[origin: WO2014052695A1] Disclosed is a process for producing hexafluoro-2-butyne comprising, reacting HCFC-336 with an aqueous solution of an alkali metal hydroxide in the presence of a quaternary alkylammonium salt which comprises at least one alkyl group of at least 8 carbons, and recovering the hexafluoro-2-butyne, wherein the conversion of dichloro-1,1,1,4,4,4-hexafluorobutane is at least 50% per hour. Also disclosed is a process for producing hexafluoro-2-butyne comprising, reacting HCFC-336 with an aqueous solution of an alkali metal hydroxide in the presence of a quaternary alkylammonium salt having alkyl groups of from four to ten carbon atoms, and mixtures thereof, and a non-ionic surfactant, and recovering the hexafluoro-2-butyne, and wherein the conversion of dichloro-1,1,1,4,4,4-hexafluorobutane to hexafluoro-2-butyne is at least 20% per hour.
IPC 8 full level
C07C 17/25 (2006.01); C07C 21/22 (2006.01)
CPC (source: EP)
C07C 17/25 (2013.01)
Citation (search report)
See references of WO 2014052695A1
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)
WO 2014052695 A1 20140403; CN 104684877 A 20150603; CN 108530261 A 20180914; EP 2922809 A1 20150930; IN 1199DEN2015 A 20150626; JP 2015530417 A 20151015; JP 6272877 B2 20180131; KR 102147909 B1 20200825; KR 20150061638 A 20150604; MX 2015003797 A 20150714; MX 371333 B 20200127
DOCDB simple family (application)
US 2013062080 W 20130927; CN 201380050238 A 20130927; CN 201810409549 A 20130927; EP 13776644 A 20130927; IN 1199DEN2015 A 20150213; JP 2015534687 A 20130927; KR 20157007748 A 20130927; MX 2015003797 A 20130927