EP 3394013 A1 20181031 - METHOD FOR PRODUCING AND PURIFYING 2,3,3,3-TETRAFLUORO-1-PROPENE
Title (en)
METHOD FOR PRODUCING AND PURIFYING 2,3,3,3-TETRAFLUORO-1-PROPENE
Title (de)
VERFAHREN ZUR HERSTELLUNG UND REINIGUNG VON 2,3,3,3-TETRAFLUOR-1-PROPEN
Title (fr)
PROCEDE DE PRODUCTION ET DE PURIFICATION DU 2,3,3,3-TETRAFLUORO-1-PROPENE
Publication
Application
Priority
- FR 1563167 A 20151223
- EP 2016080948 W 20161214
Abstract (en)
[origin: WO2017108522A1] The present invention concerns a method for producing and purifying 2,3,3,3-tetrafluoro-1-propene (1234yf) from a first composition comprising 2,3,3,3-tetrafluoro-1-propene and chloromethane (40), said method comprising the steps of: (a) bringing said first composition into contact with at least one organic extractant in order to form a second composition; (b) extractive distillation of said second composition in order to form (i) a third composition comprising said organic extractant and chloromethane (40); and (ii) a stream comprising 2,3,3,3-tetrafluoro-1-propene (1234yf); (c) recovering and separating said third composition, preferably by distillation, in order to form a stream comprising said organic extractant and a stream comprising chloromethane (40).
IPC 8 full level
C07C 17/087 (2006.01); C07C 17/386 (2006.01); C07C 21/18 (2006.01)
CPC (source: EP US)
C07C 17/25 (2013.01 - EP US); C07C 17/386 (2013.01 - EP US); C07C 19/03 (2013.01 - US); C07C 21/18 (2013.01 - US); C07C 31/02 (2013.01 - US); C07C 43/10 (2013.01 - US); C07C 43/14 (2013.01 - US); C07C 47/02 (2013.01 - US); C07C 49/04 (2013.01 - US); C07C 69/04 (2013.01 - US); C07C 69/06 (2013.01 - US); C07C 69/14 (2013.01 - US); C07C 211/03 (2013.01 - US); C07C 211/09 (2013.01 - US); C07C 211/20 (2013.01 - US); C07C 211/21 (2013.01 - US); C07C 211/35 (2013.01 - US); C09K 5/045 (2013.01 - EP US); C09K 2205/126 (2013.01 - EP US)
Citation (search report)
See references of WO 2017108522A1
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 2017108522 A1 20170629; CN 108368007 A 20180803; EP 3394013 A1 20181031; FR 3046163 A1 20170630; FR 3046163 B1 20191213; JP 2018538316 A 20181227; JP 6892862 B2 20210623; MX 2018007596 A 20180921; US 10494320 B2 20191203; US 2018370881 A1 20181227
DOCDB simple family (application)
EP 2016080948 W 20161214; CN 201680071234 A 20161214; EP 16809820 A 20161214; FR 1563167 A 20151223; JP 2018532126 A 20161214; MX 2018007596 A 20161214; US 201616063304 A 20161214