FR3064626B1 - PROCESS FOR PRODUCING 2,3,3,3-TETRAFLUOROPROPENE. - Google Patents

PROCESS FOR PRODUCING 2,3,3,3-TETRAFLUOROPROPENE. Download PDF

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Publication number
FR3064626B1
FR3064626B1 FR1752578A FR1752578A FR3064626B1 FR 3064626 B1 FR3064626 B1 FR 3064626B1 FR 1752578 A FR1752578 A FR 1752578A FR 1752578 A FR1752578 A FR 1752578A FR 3064626 B1 FR3064626 B1 FR 3064626B1
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France
Prior art keywords
stream
tetrafluoropropene
bara
producing
distillation
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FR1752578A
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French (fr)
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FR3064626A1 (en
Inventor
Dominique Deur-Bert
Laurent Wendlinger
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Arkema France SA
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Arkema France SA
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Priority to FR1752578A priority Critical patent/FR3064626B1/en
Priority to PCT/FR2018/050731 priority patent/WO2018178551A1/en
Publication of FR3064626A1 publication Critical patent/FR3064626A1/en
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    • C—CHEMISTRY; METALLURGY
    • C07—ORGANIC CHEMISTRY
    • C07C—ACYCLIC OR CARBOCYCLIC COMPOUNDS
    • C07C17/00—Preparation of halogenated hydrocarbons
    • C07C17/38—Separation; Purification; Stabilisation; Use of additives
    • C07C17/383—Separation; Purification; Stabilisation; Use of additives by distillation
    • C—CHEMISTRY; METALLURGY
    • C07—ORGANIC CHEMISTRY
    • C07C—ACYCLIC OR CARBOCYCLIC COMPOUNDS
    • C07C17/00—Preparation of halogenated hydrocarbons
    • C07C17/093—Preparation of halogenated hydrocarbons by replacement by halogens
    • C07C17/20—Preparation of halogenated hydrocarbons by replacement by halogens of halogen atoms by other halogen atoms
    • C07C17/202—Preparation of halogenated hydrocarbons by replacement by halogens of halogen atoms by other halogen atoms two or more compounds being involved in the reaction
    • C07C17/206—Preparation of halogenated hydrocarbons by replacement by halogens of halogen atoms by other halogen atoms two or more compounds being involved in the reaction the other compound being HX

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  • Chemical & Material Sciences (AREA)
  • Organic Chemistry (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Organic Low-Molecular-Weight Compounds And Preparation Thereof (AREA)

Abstract

La présente invention concerne un procédé de production du 2,3,3,3-tetrafluoropropène comprenant les étapes de : a) mise en contact, dans un réacteur, d'un composé de formule (I) CH(n+2)(X)m-CHp(X)(n+1)-CX(3+p-m) où X représente indépendamment F ou Cl ; n, m, p sont indépendamment les uns des autres 0 ou 1 avec (n+m) = 0 ou 1, (n+p) = 0 ou 1 et (m-p) = 0 ou 1, au moins un X étant Cl, avec de l'acide fluorhydrique pour obtenir un flux de produits comprenant 2,3,3,3-tetrafluoropropène, HCI et HF, b) refroidissement du flux de produits obtenu à l'étape a) à une température inférieure à 50°C, c) distillation du flux refroidi à l'étape b) pour former un premier courant comprenant HCI et un second courant comprenant 2,3,3,3-tetrafluoropropène et HF, d) distillation du second courant pour former un troisième courant comprenant 2,3,3,3-tetrafluoropropène et un quatrième courant comprenant HF ; et caractérisé en ce que l'étape a) est mise en œuvre à une pression supérieure ou égale à 7 bara, de préférence à une pression de 7 à 25 bara, plus préférentiellement de 7 à 15 bara.The present invention relates to a process for producing 2,3,3,3-tetrafluoropropene comprising the steps of: a) bringing into contact, in a reactor, a compound of formula (I) CH (n + 2) (X ) m-CHp (X) (n + 1) -CX (3 + pm) where X independently represents F or Cl; n, m, p are independently of each other 0 or 1 with (n + m) = 0 or 1, (n + p) = 0 or 1 and (mp) = 0 or 1, at least one X being Cl, with hydrofluoric acid to obtain a product stream comprising 2,3,3,3-tetrafluoropropene, HCl and HF, b) cooling the product stream obtained in step a) to a temperature below 50 ° C, c) distillation of the stream cooled in step b) to form a first stream comprising HCI and a second stream comprising 2,3,3,3-tetrafluoropropene and HF, d) distillation of the second stream to form a third stream comprising 2, 3,3,3-tetrafluoropropene and a fourth stream comprising HF; and characterized in that step a) is carried out at a pressure greater than or equal to 7 bara, preferably at a pressure of 7 to 25 bara, more preferably from 7 to 15 bara.

FR1752578A 2017-03-28 2017-03-28 PROCESS FOR PRODUCING 2,3,3,3-TETRAFLUOROPROPENE. Active FR3064626B1 (en)

Priority Applications (2)

Application Number Priority Date Filing Date Title
FR1752578A FR3064626B1 (en) 2017-03-28 2017-03-28 PROCESS FOR PRODUCING 2,3,3,3-TETRAFLUOROPROPENE.
PCT/FR2018/050731 WO2018178551A1 (en) 2017-03-28 2018-03-27 Method for the production of 2,3,3,3-tetrafluoropropene

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
FR1752578 2017-03-28
FR1752578A FR3064626B1 (en) 2017-03-28 2017-03-28 PROCESS FOR PRODUCING 2,3,3,3-TETRAFLUOROPROPENE.

Publications (2)

Publication Number Publication Date
FR3064626A1 FR3064626A1 (en) 2018-10-05
FR3064626B1 true FR3064626B1 (en) 2020-02-21

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FR1752578A Active FR3064626B1 (en) 2017-03-28 2017-03-28 PROCESS FOR PRODUCING 2,3,3,3-TETRAFLUOROPROPENE.

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FR (1) FR3064626B1 (en)
WO (1) WO2018178551A1 (en)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN113527049B (en) * 2020-04-22 2024-08-23 陕西中蓝化工科技新材料有限公司 Co-production preparation process of trans/cis-HFO-1234 ze and HFO-1234yf

Family Cites Families (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4902838A (en) 1988-12-28 1990-02-20 E. I. Du Pont De Nemours And Company Isomerization of saturated fluorohydrocarbons
EP0939071B1 (en) 1998-02-26 2003-07-30 Central Glass Company, Limited Method for producing fluorinated propane
FR2808268B1 (en) 2000-04-26 2002-08-30 Atofina IONIC LIQUIDS DERIVED FROM TITANIUM, NIOBIUM, TANTALUM, TIN OR ANTIMONY LEWIS ACIDS AND THEIR APPLICATIONS
EP2546223B1 (en) 2006-01-03 2016-08-10 Honeywell International Inc. Method for producing fluorinated organic compounds
FR2901790A1 (en) 2006-05-30 2007-12-07 Arkema France PROCESS FOR PRODUCING HYDROFLUOROCARBONS
WO2008040969A2 (en) 2006-10-03 2008-04-10 Ineos Fluor Holdings Limited Dehydrogenationhalogenation process for the production of c3-c6-(hydro)fluoroalkenes
EP2091897B2 (en) 2006-10-31 2021-12-01 The Chemours Company FC, LLC Processes for the production of fluoropropanes and halopropenes
FR2916755B1 (en) 2007-05-31 2009-08-21 Arkema France PROCESS FOR THE PREPARATION OF (HYDRO) (CHLORO) (FLUORO) OLEFINS
FR2929271B1 (en) 2008-03-28 2010-04-16 Arkema France PROCESS FOR THE PREPARATION OF 1,2,3,3,3-PENTAFLUOROPROPENE-1
HUE030760T2 (en) 2011-01-21 2017-05-29 Arkema France Process for the manufacture of 2,3,3,3- tetrafluoropropene by gas phase fluorination of pentachloropropane
FR2986525B1 (en) * 2012-02-03 2014-02-14 Arkema France PROCESS FOR PRODUCING 2,3,3,3-TETRAFLUOROPROPENE

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Publication number Publication date
FR3064626A1 (en) 2018-10-05
WO2018178551A1 (en) 2018-10-04

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