EP4457204A1 - Composition stabilisée d'oléfine (hydro)halogénée - Google Patents
Composition stabilisée d'oléfine (hydro)halogénéeInfo
- Publication number
- EP4457204A1 EP4457204A1 EP22854163.7A EP22854163A EP4457204A1 EP 4457204 A1 EP4457204 A1 EP 4457204A1 EP 22854163 A EP22854163 A EP 22854163A EP 4457204 A1 EP4457204 A1 EP 4457204A1
- Authority
- EP
- European Patent Office
- Prior art keywords
- hydro
- ppm
- halogenated olefin
- butene
- composition according
- 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.)
- Pending
Links
Classifications
-
- 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
- C07C17/42—Use of additives, e.g. for stabilisation
-
- C—CHEMISTRY; METALLURGY
- C07—ORGANIC CHEMISTRY
- C07C—ACYCLIC OR CARBOCYCLIC COMPOUNDS
- C07C21/00—Acyclic unsaturated compounds containing halogen atoms
- C07C21/02—Acyclic unsaturated compounds containing halogen atoms containing carbon-to-carbon double bonds
- C07C21/18—Acyclic unsaturated compounds containing halogen atoms containing carbon-to-carbon double bonds containing fluorine
Definitions
- the invention relates to the field of (hydro)halogenated olefins with two carbon atoms and in particular their stabilization using a polymerization reaction inhibitor.
- terpenes For two-carbon (hydro)halogenated olefins, a specific family of compounds, terpenes, are commonly used as polymerization stabilizer/inhibitor.
- limonene also called dipentene
- US patent 2407405 describes the stabilization during storage and handling of TFE thanks to the addition of 0.5% of Terpene “B”, which is essentially a mixture of dipentene and terpinolene.
- Trifluoroethylene is generally sold stabilized with limonene (see Safety data sheet for trifluoroethylene marketed by Halocarbon - XP002673763).
- One of the disadvantages of these organic compounds used as polymerization inhibitor is their relatively high molecular weight and especially their high boiling point (for example 176°C for dipentene) compared to the (hydro)halogenated olefin with two carbon atoms. carbon (eg -72°C for vinyl fluoride, -76°C for tetrafluoroethylene, -61°C for trifluoroethylene).
- the (hydro)halogenated olefins with two carbon atoms generally being stored in the form of compressed gases, possibly liquefied, that is to say in gaseous form only or in liquid/vapor equilibrium, this strong difference in point of boiling and therefore partial pressure results in a low or even very low concentration of inhibitor in the monomer gas phase.
- This quantity may prove to be insufficient to protect the monomer in a durable and reliable manner from spontaneous polymerization.
- One objective of the invention is therefore to provide other inhibitors of the polymerization of (hydro)halogenated olefins with two carbon atoms which do not have the drawbacks of the inhibitors described in the prior art.
- the invention relates to a composition
- a composition comprising:
- X2, X3 and X4 are independently selected from H, F and Cl;
- aliphatic alkenes having a lower boiling point or equal to 80° C. could act as a polymerization inhibitor for (hydro)halogenated olefins of formula (I).
- these inhibitors due to their low boiling point, these inhibitors have the advantage of being able to be introduced at higher contents in the gas phase than terpenes.
- the (hydro)halogenated olefin of formula (I) is chosen from the group consisting of: vinyl chloride, vinyl fluoride, 1,1-dichloroethene, 1,2-dichloroethene, 1,1- difluoroethene, 1,2-difluoroethene, trifluoroethylene, chlorotrifluoroethylene, 1,1-chlorofluoroethene, 1,2-chlorofluoroethene, 1-chloro-2,2-difluoroethylene, tetrafluoroethylene, and their mixture.
- the (hydro)halogenated olefin of formula (I) can essentially comprise an element chosen from the group consisting of trifluoroethylene, tetrafluoroethylene, chlorotrifluoroethylene, 1,1-chlorofluoroethene, and their mixture; preferably from the group consisting of trifluoroethylene, tetrafluoroethylene, and their mixture.
- the (hydro)halogenated olefin of formula (I) can essentially comprise trifluoroethylene.
- the term “essentially understand” means that the (hydro)halogenated olefins mentioned represent more than 95% by weight, preferably more than 96% by weight, preferably more than 97% by weight, preferably even more than 98% by weight and more preferably more than 99% by weight based on all possible (hydro)halogenated olefins.
- the (hydro)halogenated olefin of formula (I) may comprise being chosen from the group consisting of trifluoroethylene, tetrafluoroethylene, chlorotrifluoroethylene, 1,1-chlorofluoroethene, and their mixture; preferably from the group consisting of trifluoroethylene, tetrafluoroethylene, and their mixture.
- the (hydro)halogenated olefin of formula (I) can be trifluoroethylene.
- the aliphatic alkene can have a boiling point at most equal to 60° C., and preferably at most equal to 50° C., measured at 1013 hPa. This has the advantage of being able to introduce the aliphatic alkene in high contents in the gas phase.
- the aliphatic alkene is a C3 to C6 alkene compound and has a single double bond. It may in particular be chosen from the group consisting of propene, 1-butene, 2-butene, isobutylene, 1-pentene, 2-pentene, 2-methyl-1-butene, 3-methyl-1-butene, 2-methyl- 2-butene, 1-hexene, 2-hexene, 3-hexene, the isomers of methyl-pentene, in particular 4-methyl-1-pentene, the isomers of dimethylbutene, cyclopentene, and their mixture.
- the aliphatic alkene can in particular be chosen from the group consisting of: 1-butene, 2-butene, isobutylene and their mixture.
- the (hydro)halogenated olefin of formula (I) is only in the gaseous state. This form of storage is particularly recommended for certain monomers, such as trifluoroethylene.
- the aliphatic alkene is in liquid-vapor equilibrium. This makes it possible to saturate the gas phase with aliphatic alkene vapor.
- the (hydro)halogenated olefin of formula (I) represents at least 90%, or at least 91%, or at least 92%, or at least 93%, or at least 94%, or at least 95%, or at least 96%, or at least 97%, or at least 98%, or at least 99% by weight relative to the total weight of composition.
- the composition essentially consists of one or more (hydro)halogenated olefins and the aliphatic alkene(s).
- the composition may comprise a low content of oxygen, in particular of gaseous oxygen.
- the dioxygen content may be less than or equal to 2500 molar ppm, preferably less than or equal to 1000 molar ppm, preferably less than or equal to 500 molar ppm, more preferably less than or equal to 100 molar ppm, relative to the number of moles of (hydro)halogenated olefin in the gas phase. It is generally desirable for the oxygen content to be as low as possible in the composition. Nevertheless, due to the possibility of having a high content of aliphatic alkene in the gas phase making it possible to inhibit the polymerization, a certain tolerance can be envisaged according to certain embodiments.
- the dioxygen content may be strictly greater than 3 molar ppm, or strictly greater than 50 molar ppm, or strictly greater than 100 ppm, or strictly greater than 300 ppm, or strictly greater than 1000 molar ppm, relative to the number of moles of (hydro)halogenated olefin in the gas phase.
- the composition may comprise more than 100 molar ppm, preferably more than 250 molar ppm, more preferably more than 500 molar ppm, more preferably more than 750 molar ppm, and more preferably more than 1000 molar ppm of said aliphatic alkene in the gas phase, relative to the number of moles of (hydro)halogenated olefin in the gas phase.
- the composition may comprise less than 50,000 molar ppm, preferably less than 25,000 molar ppm, and more preferably less than 10,000 molar ppm of said gas-phase aliphatic alkene, based on the number of moles of (hydro)halogenated olefin in the gas phase.
- the composition may in particular comprise less than 7500 molar ppm, or less than 5000 molar ppm of said aliphatic alkene in the gas phase, relative to the number of moles of (hydro)halogenated olefin in the gas phase.
- the composition may in particular comprise from 1 ppm to 100 ppm, or from 100 ppm to 1000 ppm, or from 1000 ppm to 2000 ppm, or from 2000 ppm to 3000 ppm, or from 3000 ppm to 4000 ppm, or from 4000 ppm to 5000 ppm, or from 5000 ppm to 6000 ppm, or from 6000 ppm to 7000 ppm, or from 8000 ppm to 9000 ppm, or from 9000 ppm to 10,000 ppm molar said at least one aliphatic alkene in the gas phase , relative to the number of moles of (hydro)halogenated olefin in the gas phase.
- the invention also relates to the use of an aliphatic alkene such as those mentioned above for stabilizing, in particular preventing any self-polymerization, of a hydro(halogenated) olefin of formula (I), such as those mentioned above.
- compositions can advantageously be used for the storage of hydro(halogenated) olefins of formula (I).
- a particular embodiment consists in providing a composition comprising trifluoroethylene and a butene, for example but-1-ene, the butene inhibiting the polymerization, in particular the autopolymerization, of trifluoroethylene.
- This composition can make it possible to store and/or transport the trifluoroethylene while in particular avoiding the self-polymerization of the monomer.
- the trifluoroethylene of the composition can be in the form of a compressed gas, optionally liquefied. It can therefore be in gaseous form only or in gas-liquid equilibrium form.
- the butene in the composition can also be in gas-only form or in gas-liquid equilibrium form.
- the composition comprising trifluoroethylene and butene, capable of being used for the storage of trifluoroethylene can only be in gaseous form.
- the composition comprising trifluoroethylene and butene suitable for use for the storage of trifluoroethylene, can comprise a gaseous phase and a liquid phase, the liquid phase essentially consisting of butene.
- the trifluoroethylene may have a purity greater than or equal to 95.0% (by weight), preferentially greater than or equal to 98.0%, and extremely preferably greater than or equal to 99.0%. According to particular embodiments, the trifluoroethylene may have a purity greater than or equal to 99.5%.
- Document EP 2 993 213 shows for example the obtaining of a trifluoroethylene with a purity equal to 99.1% comprising as impurities other halogenated olefins, and in particular chlorotrifluoroethylene, isomers of difluoroethylene and isomers of chlorodifluoroethylene, as well as alkanes. No aliphatic alkene, whose use as a polymerization inhibitor of hydro(halogenated) olefins here claimed, was detected.
- the trifluoroethylene thus produced can be stored in a suitable pressure-resistant container. It is stored in the presence of butene in the gaseous state with a gas phase content of 1 molar ppm to 100,000 ppm, preferably 50 ppm to 75,000 ppm, more preferably 100 ppm to 50,000 ppm, more preferably still from 500 ppm to 25,000 ppm, and extremely preferably from 1,000 ppm to 10,000 ppm with respect to trifluoroethylene. It can in particular be stored in the presence of butene in the gaseous state with a gas phase content of 1000 ppm to 5000 ppm with respect to trifluoroethylene.
- the oxygen content within the container can be reduced to a predetermined threshold by reducing the internal pressure and/or injection of an inert gas.
- the composition can be stored under usual pressure and temperature conditions.
- the storage temperature may in particular vary from -20°C to +40°C, or from -10°C to +35°C or even from 0°C to 30°C.
- the storage pressure is generally greater than or equal to 1 bar, and less than or equal to 20 bars.
- the pressure may in particular be greater than or equal to 1.5 bars or greater than or equal to 2 bars, or greater than or equal to 2.5 bars, or greater than or equal to 3 bars or even greater than or equal to 3.5 bars.
- a pressure of 3.5 bars or more is beyond the recommended pressure threshold for the storage of trifluoroethylene comprising less than 1000 ppm of dipentene in the gas phase (see Safety data sheet for trifluoroethylene marketed by Halocarbon - XP002673763)
- the pressure may in particular be less than or equal to 19 bars, or less than or equal to 18 bars, or less than or equal to 17 bars, or less than or equal to 16 bars, or less than or equal to 15 bars.
- the storage pressure is between 3.5 bars and 15 bars.
- a quantity of 166 g of trifluoroethylene was reacted with a quantity of 280 g of vinylidene fluoride and 17 g of chlorotrifluoroethylene, in the presence of 0.45 g of but-1-ene (i.e. 950 molar ppm with respect to the number total moles of monomers being (hydro)chloro)fluorinated olefins in a 4L reactor containing 3400 g of demineralised water, 1 g of methylhydroxypropyl cellulose and 1.8 g of propyl peroxydicarbonate. The reactor was then brought to a temperature of 44° C. as quickly as possible to reach a pressure of 95 bars. Once the temperature of 44°C was reached, the polymerization reaction only started after an inhibition period equal to 82 minutes, the reaction being considered as having started after the pressure in the reactor had dropped by 5 bars. .
- the comparative example was implemented under the same conditions as example 1 except that it was not added to the reaction mixture of but-1-ene.
- the reactor was brought to a temperature of 44°C as quickly as possible and the pressure in the reactor once the target temperature was reached was below 90 bars, which indicates that the polymerization reaction started during the ramp-up. temperature in the reactor.
- but-1-ene is a trifluoroethylene polymerization inhibitor.
Landscapes
- Chemical & Material Sciences (AREA)
- Organic Chemistry (AREA)
- Organic Low-Molecular-Weight Compounds And Preparation Thereof (AREA)
- Addition Polymer Or Copolymer, Post-Treatments, Or Chemical Modifications (AREA)
- Polymerisation Methods In General (AREA)
Abstract
Description
Claims
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| FR2114756A FR3131584B1 (fr) | 2021-12-31 | 2021-12-31 | Composition stabilisée d'oléfine (hydro)halogénée |
| PCT/FR2022/052518 WO2023126619A1 (fr) | 2021-12-31 | 2022-12-29 | Composition stabilisée d'oléfine (hydro)halogénée |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| EP4457204A1 true EP4457204A1 (fr) | 2024-11-06 |
Family
ID=81346408
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| EP22854163.7A Pending EP4457204A1 (fr) | 2021-12-31 | 2022-12-29 | Composition stabilisée d'oléfine (hydro)halogénée |
Country Status (7)
| Country | Link |
|---|---|
| US (1) | US20250059115A1 (fr) |
| EP (1) | EP4457204A1 (fr) |
| JP (1) | JP2025503811A (fr) |
| KR (1) | KR20240130759A (fr) |
| CN (1) | CN118632828A (fr) |
| FR (1) | FR3131584B1 (fr) |
| WO (1) | WO2023126619A1 (fr) |
Family Cites Families (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US2407405A (en) | 1943-02-15 | 1946-09-10 | Du Pont | Stabilization of tetrafluoroethylene |
| EP2160415A4 (fr) * | 2007-06-27 | 2014-01-01 | Arkema Inc | Hydrochlorofluorooléfines et hydrofluorooléfines stabilisées |
| FR2987358B1 (fr) | 2012-02-28 | 2016-10-21 | Arkema France | Procede de synthese du trifluoroethylene a partir du chlorotrifluoroethylene |
| CN115160988B (zh) | 2013-04-30 | 2024-05-14 | Agc株式会社 | 包含三氟乙烯的组合物 |
| FR3033791B1 (fr) * | 2015-03-18 | 2017-04-14 | Arkema France | Stabilisation du 1-chloro-3,3,3-trifluoropropene |
| EP3150571B1 (fr) * | 2015-09-30 | 2018-06-13 | Arkema France | Compositions stables de trifluoroéthylène |
| FR3082517B1 (fr) * | 2018-06-18 | 2021-01-15 | Arkema France | Stabilisation du 1,1,1,1,4,4,4-hexafluorobut-2-ene |
-
2021
- 2021-12-31 FR FR2114756A patent/FR3131584B1/fr active Active
-
2022
- 2022-12-29 WO PCT/FR2022/052518 patent/WO2023126619A1/fr not_active Ceased
- 2022-12-29 US US18/725,073 patent/US20250059115A1/en active Pending
- 2022-12-29 JP JP2024539559A patent/JP2025503811A/ja not_active Withdrawn
- 2022-12-29 KR KR1020247025431A patent/KR20240130759A/ko active Pending
- 2022-12-29 EP EP22854163.7A patent/EP4457204A1/fr active Pending
- 2022-12-29 CN CN202280087143.3A patent/CN118632828A/zh active Pending
Also Published As
| Publication number | Publication date |
|---|---|
| US20250059115A1 (en) | 2025-02-20 |
| FR3131584A1 (fr) | 2023-07-07 |
| FR3131584B1 (fr) | 2025-10-17 |
| KR20240130759A (ko) | 2024-08-29 |
| JP2025503811A (ja) | 2025-02-05 |
| WO2023126619A1 (fr) | 2023-07-06 |
| CN118632828A (zh) | 2024-09-10 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CA2245155C (fr) | Procede de separation de fluorure d'hydrogene de ses melanges avec un hydrofluoroalcane contenant de 3 a 6 atomes de carbone | |
| WO2018104661A1 (fr) | Procede pour eviter le depot de polymeres dans un procede de purification d'acide (meth)acrylique | |
| EP0699649A1 (fr) | Procédé pour l'hydrofluoration de chloro(fluoro)butane | |
| EP4457204A1 (fr) | Composition stabilisée d'oléfine (hydro)halogénée | |
| EP0564036B1 (fr) | Procédé d'épuration d'un hydrofluoroalcane | |
| EP1232138A1 (fr) | Procede de purification des monomeres (meth) acryliques par distillation | |
| EP0618181B1 (fr) | Compositions azéotropiques comprenant de l'eau et un hydrofluorocarbure, procédé d'élimination d'eau d'une solution par distillation azéotropique et procédé de production d'un hydrofluoroalcane | |
| FR3135266A1 (fr) | Procédé de production du trifluoroéthylène | |
| WO2021165618A1 (fr) | Composition comprenant un compose iodofluorocarbure | |
| EP0805136B1 (fr) | Procédé de fabrication du difluorométhane | |
| EP0538085B1 (fr) | Stabilisation du 1,1-dichloro-1-fluoroéthane | |
| WO2020183099A1 (fr) | Procédé de production de fluorooléfines | |
| FR2689885A1 (fr) | Procédé pour inhiber la décomposition du 1,1-dichloro-1-fluoréthane. | |
| EP0574077B1 (fr) | Procédé pour la préparation du 1,1,1,2-tétrafluoroéthane | |
| FR2698094A1 (fr) | Purification du 1,1-dichloro-1-fluoroéthane. | |
| US20040024236A1 (en) | (Stabilised) peroxide compositions phlegmatised with a specific unsaturated phlegmatising agent | |
| WO2000056687A1 (fr) | Procede de separation de fluorure d'hydrogene de ses melanges avec du 1,1,1,3,3-pentafluorobutane et procede de fabrication de 1,1,1,3,3-pentafluorobutane | |
| US20040030203A1 (en) | Method of stabilizing trichloroethane during production | |
| FR3035104A1 (fr) | Procede de purification du pentafluoroethane | |
| CA2177938A1 (fr) | Procede de fabrication d'acrylate de butyle secondaire par reaction de l'acide acrylique et des isomeres de butene | |
| FR3077072A1 (fr) | Procédé de purification du 1,1,1,2,3-pentafluoropropane et utilisation de celui-ci pour l’obtention de 2,3,3,3-tétrafluoropropène de haute pureté | |
| WO2024110731A1 (fr) | Procédé de purification du chlorotrifluoroéthylène par distillation extractive | |
| FR3123651A1 (fr) | Procédé de production du trifluoroéthylène et recyclage du flux de chlorotrifluoroéthylène | |
| BE558027A (fr) | ||
| FR3076553A1 (fr) | Procede de purification du 1,1,1,2,3-pentafluoropropane et utilisation de celui-ci pour l'obtention de 2,3,3,3-tetrafluoropropene de haute purete. |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| STAA | Information on the status of an ep patent application or granted ep patent |
Free format text: STATUS: UNKNOWN |
|
| STAA | Information on the status of an ep patent application or granted ep patent |
Free format text: STATUS: THE INTERNATIONAL PUBLICATION HAS BEEN MADE |
|
| PUAI | Public reference made under article 153(3) epc to a published international application that has entered the european phase |
Free format text: ORIGINAL CODE: 0009012 |
|
| STAA | Information on the status of an ep patent application or granted ep patent |
Free format text: STATUS: REQUEST FOR EXAMINATION WAS MADE |
|
| 17P | Request for examination filed |
Effective date: 20240626 |
|
| AK | Designated contracting states |
Kind code of ref document: A1 Designated state(s): 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 ME MK MT NL NO PL PT RO RS SE SI SK SM TR |
|
| DAV | Request for validation of the european patent (deleted) | ||
| DAX | Request for extension of the european patent (deleted) | ||
| RAP3 | Party data changed (applicant data changed or rights of an application transferred) |
Owner name: ARKEMA FRANCE |