FR3064627B1 - PROCESS FOR PRODUCING 2,3,3,3-TETRAFLUOROPROPENE. - Google Patents
PROCESS FOR PRODUCING 2,3,3,3-TETRAFLUOROPROPENE. Download PDFInfo
- Publication number
- FR3064627B1 FR3064627B1 FR1752579A FR1752579A FR3064627B1 FR 3064627 B1 FR3064627 B1 FR 3064627B1 FR 1752579 A FR1752579 A FR 1752579A FR 1752579 A FR1752579 A FR 1752579A FR 3064627 B1 FR3064627 B1 FR 3064627B1
- Authority
- FR
- France
- Prior art keywords
- stream
- tetrafluoropropene
- bara
- producing
- hcl
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
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Links
- FXRLMCRCYDHQFW-UHFFFAOYSA-N 2,3,3,3-tetrafluoropropene Chemical compound FC(=C)C(F)(F)F FXRLMCRCYDHQFW-UHFFFAOYSA-N 0.000 title abstract 5
- 238000000034 method Methods 0.000 title abstract 2
- KRHYYFGTRYWZRS-UHFFFAOYSA-N Fluorane Chemical compound F KRHYYFGTRYWZRS-UHFFFAOYSA-N 0.000 abstract 2
- 238000004821 distillation Methods 0.000 abstract 2
- 150000001875 compounds Chemical class 0.000 abstract 1
- 230000006835 compression Effects 0.000 abstract 1
- 238000007906 compression Methods 0.000 abstract 1
- 238000001816 cooling Methods 0.000 abstract 1
- 238000000746 purification Methods 0.000 abstract 1
Classifications
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- 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
-
- C—CHEMISTRY; METALLURGY
- C07—ORGANIC CHEMISTRY
- C07C—ACYCLIC OR CARBOCYCLIC COMPOUNDS
- C07C17/00—Preparation of halogenated hydrocarbons
- C07C17/25—Preparation of halogenated hydrocarbons by splitting-off hydrogen halides from halogenated hydrocarbons
-
- 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
Landscapes
- 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, en phase gazeuse, 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 issus du réacteur de l'étape a) à une température de 0°C à 70°C, de préférence à une température de 20°C à 50°C, c) distillation du flux refroidi à l'étape b) pour former un premier courant comprenant 2,3,3,3-tetrafluoropropène et HCI, et un second courant comprenant HF, d) compression du premier courant obtenu à l'étape c) pour former un premier courant comprimé, e) distillation dudit premier courant comprimé obtenu à l'étape d) pour un troisième courant comprenant HCI et un quatrième courant comprenant 2,3,3,3-tetrafluoropropène, f) purification dudit quatrième courant obtenu à l'étape e), caractérisé en ce que l'étape a) est mise en œuvre à une pression inférieure à 10 bara, de préférence à une pression de 2 à 8 bara, en particulier de 3 à 7 bara, plus particulièrement de 5 à 7 bara.The present invention relates to a process for producing 2,3,3,3-tetrafluoropropene comprising the steps of: a) bringing into contact, in the gas phase, 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 flow comprising 2,3,3,3-tetrafluoropropene, HCl and HF, b) cooling the product flow from the reactor of step a) to a temperature of 0 ° C. at 70 ° C, preferably at a temperature of 20 ° C to 50 ° C, c) distillation of the stream cooled in step b) to form a first stream comprising 2,3,3,3-tetrafluoropropene and HCl, and a second stream comprising HF, d) compression of the first stream obtained in step c) to form a first compressed stream, e) distillation of said first compressed stream obtained in step d) for a third stream comprising HCI and a fourth stream comprising 2,3,3,3-tetrafluoropropene, f) purification of said fourth stream obtained in step e), characterized in that step a) is carried out at a lower pressure 10 bara, preferably at a pressure of 2 to 8 bara, especially from 3 to 7 bara, more preferably from 5 to 7 bara.
Priority Applications (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| FR1752579A FR3064627B1 (en) | 2017-03-28 | 2017-03-28 | PROCESS FOR PRODUCING 2,3,3,3-TETRAFLUOROPROPENE. |
| PCT/FR2018/050732 WO2018178552A1 (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 |
|---|---|---|---|
| FR1752579A FR3064627B1 (en) | 2017-03-28 | 2017-03-28 | PROCESS FOR PRODUCING 2,3,3,3-TETRAFLUOROPROPENE. |
| FR1752579 | 2017-03-28 |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| FR3064627A1 FR3064627A1 (en) | 2018-10-05 |
| FR3064627B1 true FR3064627B1 (en) | 2020-02-21 |
Family
ID=58739231
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| FR1752579A Active FR3064627B1 (en) | 2017-03-28 | 2017-03-28 | PROCESS FOR PRODUCING 2,3,3,3-TETRAFLUOROPROPENE. |
Country Status (2)
| Country | Link |
|---|---|
| FR (1) | FR3064627B1 (en) |
| WO (1) | WO2018178552A1 (en) |
Family Cites Families (13)
| 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 |
| DE69909860T2 (en) | 1998-02-26 | 2004-05-27 | Central Glass Co., Ltd., Ube | Process for the production of fluorinated propanes |
| FR2808268B1 (en) | 2000-04-26 | 2002-08-30 | Atofina | IONIC LIQUIDS DERIVED FROM TITANIUM, NIOBIUM, TANTALUM, TIN OR ANTIMONY LEWIS ACIDS AND THEIR APPLICATIONS |
| EP3336073B1 (en) | 2006-01-03 | 2022-11-02 | Honeywell International Inc. | Method for producing fluorinated organic compounds |
| FR2901790A1 (en) | 2006-05-30 | 2007-12-07 | Arkema France | PROCESS FOR PRODUCING HYDROFLUOROCARBONS |
| EP2129644B1 (en) | 2006-10-03 | 2020-07-01 | Mexichem Fluor S.A. de C.V. | 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 |
| ES2556955T3 (en) * | 2009-12-23 | 2016-01-21 | Arkema France | Catalytic fluorination in gas phase of 243db to give 1234yf |
| ES2609975T3 (en) | 2011-01-21 | 2017-04-25 | Arkema France | Process for the manufacture of 2,3,3,3-tetrafluoropropene by gas phase fluoridation of pentachloropropane |
| FR2977584B1 (en) * | 2011-07-08 | 2014-12-05 | Arkema France | PROCESS FOR SEPARATING AND RECOVERING 2,3,3,3-TETRAFLUOROPROPENE AND FLUORHYDRIC ACID |
| FR2986525B1 (en) * | 2012-02-03 | 2014-02-14 | Arkema France | PROCESS FOR PRODUCING 2,3,3,3-TETRAFLUOROPROPENE |
-
2017
- 2017-03-28 FR FR1752579A patent/FR3064627B1/en active Active
-
2018
- 2018-03-27 WO PCT/FR2018/050732 patent/WO2018178552A1/en active Application Filing
Also Published As
| Publication number | Publication date |
|---|---|
| FR3064627A1 (en) | 2018-10-05 |
| WO2018178552A1 (en) | 2018-10-04 |
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