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1. WO2020183099 - PROCESS FOR PRODUCING FLUOROOLEFINS

Publication Number WO/2020/183099
Publication Date 17.09.2020
International Application No. PCT/FR2020/050471
International Filing Date 09.03.2020
IPC
C07C 17/25 2006.01
CCHEMISTRY; METALLURGY
07ORGANIC CHEMISTRY
CACYCLIC OR CARBOCYCLIC COMPOUNDS
17Preparation of halogenated hydrocarbons
25by splitting-off hydrogen halides from halogenated hydrocarbons
C07C 17/354 2006.01
CCHEMISTRY; METALLURGY
07ORGANIC CHEMISTRY
CACYCLIC OR CARBOCYCLIC COMPOUNDS
17Preparation of halogenated hydrocarbons
35by reactions not affecting the number of carbon or halogen atoms in the molecules
354by hydrogenation
C07C 19/08 2006.01
CCHEMISTRY; METALLURGY
07ORGANIC CHEMISTRY
CACYCLIC OR CARBOCYCLIC COMPOUNDS
19Acyclic saturated compounds containing halogen atoms
08containing fluorine
C07C 21/18 2006.01
CCHEMISTRY; METALLURGY
07ORGANIC CHEMISTRY
CACYCLIC OR CARBOCYCLIC COMPOUNDS
21Acyclic unsaturated compounds containing halogen atoms
02containing carbon-to-carbon double bonds
18containing fluorine
C07C 21/185 2006.01
CCHEMISTRY; METALLURGY
07ORGANIC CHEMISTRY
CACYCLIC OR CARBOCYCLIC COMPOUNDS
21Acyclic unsaturated compounds containing halogen atoms
02containing carbon-to-carbon double bonds
18containing fluorine
185Tetrafluoroethene
CPC
C07C 17/25
CCHEMISTRY; METALLURGY
07ORGANIC CHEMISTRY
CACYCLIC OR CARBOCYCLIC COMPOUNDS
17Preparation of halogenated hydrocarbons
25by splitting-off hydrogen halides from halogenated hydrocarbons
C07C 17/354
CCHEMISTRY; METALLURGY
07ORGANIC CHEMISTRY
CACYCLIC OR CARBOCYCLIC COMPOUNDS
17Preparation of halogenated hydrocarbons
35by reactions not affecting the number of carbon or of halogen atoms in the reaction
354by hydrogenation
Applicants
  • ARKEMA FRANCE [FR]/[FR]
Inventors
  • GARRAIT, Dominique
  • SEDAT, Pierre-Marie
Agents
  • LECA, François
Priority Data
190250212.03.2019FR
Publication Language French (FR)
Filing Language French (FR)
Designated States
Title
(EN) PROCESS FOR PRODUCING FLUOROOLEFINS
(FR) PROCÉDÉ DE PRODUCTION DE FLUOROOLÉFINES
Abstract
(EN)
The present invention relates to a process for producing 1,2,3,3,3-pentafluoropropene and/or 2,3,3,3-tetrafluoropropene comprising a step of dehydrofluorination of 1,1,1,2,3,3-hexafluoropropane and/or of 1,1,1,2,3-pentafluoropropane using a mixture containing water and an alkali metal hydroxide under conditions sufficient to produce a reaction medium comprising 1,2,3,3,3-pentafluoropropene and/or 2,3,3,3-tetrafluoropropene, characterized in that said dehydrofluorination step is carried out in the presence of a co-current flow of water vapour.
(FR)
La présente invention concerne un procédé de production de 1,2,3,3,3-pentafluoropropène et/ou de 2,3,3,3-tétrafluoropropène comprenant une étape de déhydrofluoration du,1,1,2,3,3-hexafluoropropane et/ou du 1,1,1,2,3-pentafluoropropane à l'aide d'un mélange contenant de l'eau et un hydroxyde alcalin dans des conditions suffisantes pour produire un milieu réactionnel comprenant 1,2,3,3,3-pentafluoropropène et/ou 2,3,3,3-tétrafluoropropène, caractérisé en ce que ladite étape de déhydrofluoration est mise en œuvre en présence d'un co- courant de vapeur d'eau.
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