EP3793967A1 - Procédé de production du 1-chloro-3,3,3-trifluoropropène - Google Patents
Procédé de production du 1-chloro-3,3,3-trifluoropropèneInfo
- Publication number
- EP3793967A1 EP3793967A1 EP19732719.0A EP19732719A EP3793967A1 EP 3793967 A1 EP3793967 A1 EP 3793967A1 EP 19732719 A EP19732719 A EP 19732719A EP 3793967 A1 EP3793967 A1 EP 3793967A1
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- EP
- European Patent Office
- Prior art keywords
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- chloro
- trifluoropropene
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- 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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Classifications
-
- 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
-
- 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
Definitions
- the present invention relates to the production of hydrochlorofluoroolefins.
- the present invention relates to the production of 1-chloro-3,3,3-trifluoropropene.
- HCFO-1233zd 3,3,3-Trifluoro-1-chloropropene or 1-chloro-3,3,3-trifluoropropene (HCFO-1233zd) exists as two isomers: the cis isomer, Z-3,3 , 3-trifluoro-1-chloropropene (HCFO-1233zdZ), and the trans isomer, namely E-3,3,3-trifluoro-1-chloropropene (HCFO-1233zdE). They have different boiling points, respectively 18.5 ° C for the trans compound and 39.5 ° C for the cis compound.
- Fluids based on E-3,3,3-trifluoro-1-chloropropene have found many applications in various industrial fields, including heat transfer fluids, propellants, foaming agents, agents blowing agents, gaseous dielectrics, polymerization media or monomers, support fluids, abrasive agents, drying agents and fluids for power generation units.
- HCFO-1233zdE The production of HCFO-1233zdE is accompanied by a multitude of by-products, with a boiling point close to HCFO-1233zdE. This leads to quite complex and expensive purification steps. The difficulties encountered during the purification of HCFO-1233zdE generally imply a consequent loss of the desired product. In addition, by-products can form azeotropic compositions with HCFO-1233zdE, making separation by simple distillation very difficult or impossible.
- US Pat. No. 5,877,359 discloses a process for preparing HCFO-1233zdE from 1,1,3,3-tetrachloropropene in the liquid phase and in the absence of a catalyst.
- the molar ratio HF / 1230za in the fluorination reactor is from 12 to 500.
- US 9,643,903 also discloses a process for fluorinating 1,1,3,3-tetrachloropropene in the liquid phase and in the absence of a catalyst in a medium. rich in HF.
- a large amount of HF present at startup or in a stationary regime of a pressurized industrial reactor is undesirable for obvious safety and environmental reasons. The concern for new processes that are more respectful of the environment is part of a process of continuous improvement.
- the present invention provides a process for producing 1-chloro-3,3,3-trifluoropropene comprising step i) of contacting in a reactor between hydrofluoric acid (HF) and a composition of starting material comprising at least one of the chlorinated compounds selected from the group consisting of 1,1,3,3-tetrachloropropene (1230za),
- the reduction of the amount of HF in the fluorination reactor tends to preserve it from corrosion phenomena.
- the reduction of the amount of HF in the reactor provides operational reliability which makes it an easily industrializable process. The risks of settling in the liquid phase reactor are thus minimized.
- the amount of over-fluorinated coproducts is decreased by the process according to the present invention.
- said HF-poor liquid phase is a liquid phase comprising less than 15% by weight of HF, advantageously less than 10% by weight of HF, preferably less than 8% by weight of HF, more preferably less than 6% by weight of HF, in particular less than 5% by weight of HF, more particularly less than 4% by weight of HF, preferably less than 2% by weight of HF based on the total weight of said phase liquid.
- said at least one of the chlorinated compounds is
- said starting composition comprises at least 10% by weight of said at least one chlorinated compound based on the total weight of said starting composition. According to a preferred embodiment, said starting composition comprises less than 10% by weight of HF based on the total weight of said starting composition.
- said liquid phase comprises at least 10% by weight of compounds of formula (I) C3H n F m C p (I) wherein n is an integer from 0 to 8, m is an integer from 0 at 8, and p is an integer from 0 to 8.
- step i) is carried out in the absence of catalyst.
- stream A comprises co-products selected from the group consisting of 1,3,3,3-tetrafluoropropene and 1,1,1,3,3-pentafluoropropane.
- the content of coproducts selected from the group consisting of 1,3,3,3-tetrafluoropropene and 1,1,1,3,3-pentafluoropropane is less than 0.5% by weight based on total weight of the current A at the reactor outlet.
- step i) is carried out at a temperature of 50 ° C. to 150 ° C.
- step i) is carried out at a pressure of 5 to 20 bara.
- the present invention provides a composition comprising at least 98 mol% of (E / Z) -1-chloro-3,3,3-trifluoropropene and less than 0.5 mol% of coproducts selected from the group consisting of group consisting of 1,3,3,3-tetrafluoropropene and 1,1,1,3,3-pentafluoropropane.
- the composition comprises at least 99.5 mol% of (E / Z) -1-chloro-3,3,3-trifluoropropene, less than 0.3 mol% of 1.3, 3,3-tetrafluoropropene and less than 0.05 mol% 1,1,1,3,3-pentafluoropropane.
- said composition is obtained at the outlet of a reactor implementing the method according to the present invention.
- a process for producing 1-chloro-3,3,3-trifluoropropene comprises a step i) of contacting in a reactor between hydrofluoric acid (HF) and a starting composition comprising at least one of the chlorinated compounds selected from the group consisting of 1,1,3,3-tetrachloropropene ( 1230za), 1,3,3,3-tetrachloropropene (1230zd) or 1,1,1,3,3-pentachloropropane (240fa) or a mixture thereof, to produce a stream A comprising 1-chloro-3,3,3-trifluoropropene (1233zd).
- said step i) is carried out in a low HF liquid phase.
- the present process provides a production of 1-chloro-3,3,3-trifluoropropene in high yield and selectivity.
- the content of co-products in the final reaction mixture is greatly reduced when the present process is carried out in a medium that is low in HF compared to a process carried out in a medium rich in HF.
- the present invention thus provides a more efficient method.
- said starting composition comprises at least 10% by weight of said at least one chlorinated compound based on the total weight of said starting composition.
- said starting composition comprises at least 15% by weight of said at least one of the chlorinated compounds, preferably at least 20% by weight of said at least one of the chlorinated compounds, more preferably at least 25% by weight of said at least one of the chlorinated compounds.
- chlorinated compounds in particular at least 30% by weight of said at least one of the chlorinated compounds, more particularly at least 35% by weight of said at least one of the chlorinated compounds, preferably at least 40% by weight of said at least one of the compounds chlorinated, advantageously at least 45% by weight of said at least one of the chlorinated compounds, preferably at least 50% by weight of said at least one of the chlorinated compounds, particularly preferably at least 55% by weight of said chlorine compounds, at least one of the chlorinated compounds based on the total weight of said starting composition.
- said starting composition comprises at least 60% by weight or at least 65% by weight or at least 70% by weight or at least 75% by weight or at least 80% by weight or at least 85% by weight or at least 90% by weight or at least 95% by weight or at least 99% by weight of said at least one chlorinated compound based on the total weight of said starting composition.
- the process according to the present invention is effective that the starting composition comprises one of said at least one chlorinated compounds of high purity or in admixture with other organic compounds.
- said at least one of the chlorinated compounds is 1,1,3,3-tetrachloropropene (1230za).
- said process comprises a step i) of contacting in a reactor between hydrofluoric acid (HF) and a starting composition comprising 1,1,3,3-tetrachloropropene (1230za) to produce a stream A comprising 1 chloro-3,3,3-trifluoropropene (1233 zd); said step i) is implemented in one phase HF-poor liquid as defined above.
- the present process allows the production of 1-chloro-3,3,3-trifluoropropene as a mixture of both cis and trans isomers. The present process makes it possible to obtain predominantly the trans-1-chloro isomer
- said starting composition comprises at least 10% by weight of 1, 1,3,3-tetrachloropropene based on the total weight of said starting composition.
- said starting composition comprises at least 15% by weight of 1,1,3,3-tetrachloropropene, preferably at least 20% by weight of 1,1,3,3-tetrachloropropene, more preferably at least 25% by weight. weight of 1,1,3,3-tetrachloropropene, in particular at least 30% by weight of
- 1.1.3.3-tetrachloropropene more particularly at least 35% by weight of 1,1,3,3-tetrachloropropene, preferably at least 40% by weight of 1,1,3,3-tetrachloropropene, advantageously at least 45% by weight of 1,1,3,3-tetrachloropropene, preferably at least 50% by weight of
- said starting composition comprises at least 60% by weight or at least 65% by weight or at least 70% by weight or at least 75% by weight or at least 80% by weight or at least 85% by weight or at least 90% by weight or at least 95% by weight or at least 99% by weight of 1,1,3,3-tetrachloropropene based on the total weight of said starting composition.
- said starting composition comprises less than 15% by weight of HF based on the total weight of said starting composition, advantageously less than 10% by weight of HF, preferably less than 8% by weight of HF.
- HF more preferably less than 6% by weight of HF, in particular less than 5% by weight of HF, more particularly less than 4% by weight of HF, preferably less than 2% by weight of HF on the basis of weight total of said starting composition.
- the starting composition is free of HF.
- lacking means a weight content of less than 500 ppm, preferably less than 100 ppm, in particular less than 10 ppm.
- step i) of the present process allows the fluorination of chlorinated compounds such as 1,1,3,3-tetrachloropropene (1230za), 1,3,3,3-tetrachloropropene
- said liquid phase will thus be enriched in fluorinated organic compounds, while maintaining a low content of HF in it.
- said low HF liquid phase is a liquid phase comprising less than 15% by weight of HF, advantageously less than 10% by weight of HF, preferably less than 8% by weight of HF, more preferably less than 6%. by weight of HF, in particular less than 5% by weight of HF, more particularly less than 4% by weight of HF, preferably less than 2% by weight of HF based on the total weight of said liquid phase.
- said liquid phase may comprise at least 10% by weight of compounds of formula (I) CH m Cl n F p (I) wherein n is an integer from 0 to 8, m is an integer of 0 to 8, and p is an integer of 0 to 8; preferably n is an integer of 0 to 8, m is an integer of 0 to 6 and p is an integer of 0 to 6.
- compounds of formula (I) may be C3CI6, C3H4Cl4 OR C3H3Cl5.
- said liquid phase may comprise at least 10% by weight of compounds of formula (I) CH m Cl n F p (I) wherein n is an integer from 1 to 8, m is an integer of 0 to 4, and p is an integer of 0 to 4; preferably n is an integer of 1 to 4, m is an integer of 0 to 3 and p is an integer of 2 to 4.
- the compounds of formula (I) may be propane or propene type compounds comprising one or more atoms chlorine and / or one or more fluorine atoms.
- said liquid phase may comprise at least 10% by weight of compounds of formula (I) selected from the group consisting of C3H2Cl4, C3H2Cl3F, C3H2Cl2F2, C3H3Cl5, C3H3Cl4F, C3H3Cl3F2 and C3H3Cl2F3.
- said liquid phase may comprise at least 10% by weight of compounds of formula (I) selected from the group consisting of C3H2Cl4, C3H2Cl3F and C3H2Cl2F2.
- Said liquid phase may comprise at least 15% by weight of compounds of formula (I) CH n F m C p (I) wherein n is an integer from 0 to 8, m is an integer from 0 to 8, and p is an integer of 0 to 8; preferably n is an integer of 0 to 8, m is an integer of 0 to 6 and p is an integer of 0 to 6.
- said liquid phase may comprise at least 15% by weight of compounds of formula (I) CH m Cl n F p (I) wherein n is an integer from 1 to 8, m is an integer of 0 to 4, and p is an integer of 0 to 4; preferably n is an integer of 1 to 4, m is an integer of 0 to 3 and p is an integer of 2 to 4.
- said liquid phase may comprise at least 15% by weight of compounds of formula (I) selected from the group consisting of C3H2Cl4, C3H2Cl3F, C3H2Cl2F2, C3H3Cl5, C3H3Cl4F, C3H3Cl3F2 and C3H3Cl2F3.
- said liquid phase may comprise at least 15% by weight of compounds of formula (I) selected from the group consisting of C3H2Cl4, C3H2Cl3F and C3H2Cl2F2.
- Said liquid phase may comprise at least 20%, at least 30%, at least 40%, at least 50%, at least 60%, at least 70%, at least 80% or at least 90% by weight of compounds of formula (I) CH m Cl n F p (I) wherein n is an integer from 0 to 8, m is an integer from 0 to 8, and p is an integer from 0 to 8; preferably n is an integer of 0 to 8, m is an integer of 0 to 6 and p is an integer of 0 to 6.
- Said liquid phase may comprise at least 20%, at least 30%, at least 40%, at least 50%, at least 60%, at least 70%, at least 80% or at least 90% by weight of compounds of formula (I) CH m Cl n F p (I) wherein n is an integer from 1 to 8, m is an integer from 0 to 4, and p is an integer from 0 to 4; preferably n is an integer of 1 to 4, m is an integer of 0 to 3 and p is an integer of 2 to 4.
- said liquid phase may comprise at least 20%, at least 30%, at least 40 %, at least 50%, at least 60%, at least 70%, at least 80% or at least 90% by weight of compounds of formula (I) selected from the group consisting of C3H2Cl4, C3H2Cl3F, C3H2Cl2F2, C3H3Cl5, C3H3Cl4F , C3H3Cl3F2 and C3H3Cl2F3.
- compounds of formula (I) selected from the group consisting of C3H2Cl4, C3H2Cl3F, C3H2Cl2F2, C3H3Cl5, C3H3Cl4F , C3H3Cl3F2 and C3H3Cl2F3.
- said liquid phase may comprise at least 20%, at least 30%, at least 40%, at least 50%, at least 60%, at least 70%, at least 80% or at least 90% by weight of compounds of formula (I) selected from the group consisting of C3H2Cl4, C3H2Cl3F and C3H2Cl2F2.
- Said liquid phase may also comprise heavy compounds derived from the dimerization or polymerization of the compounds of formula (I) as defined above.
- step i) is carried out in the absence of catalyst.
- step i) can be carried out in the presence of a catalyst.
- the catalyst may be a TiCl 4 or SbCl 5 type catalyst.
- the catalyst may also be an ionic liquid.
- Ionic liquids that may be suitable are derived from Lewis acids based on aluminum, titanium, niobium, tantalum, tin, antimony, nickel, zinc or iron.
- Ionic liquids are ionic nonaqueous salts which are liquid at moderate temperatures (preferably below 120 ° C). The ionic liquids preferably result from the reaction between an organic salt and an inorganic compound.
- the ionic liquids are preferably obtained by reacting at least one halogenated or oxyhalogenated Lewis acid based on aluminum, titanium, niobium, tantalum, tin, antimony, nickel, zinc or iron with a salt of general formula Y + a, wherein a denotes a halide anion (bromide, iodide and preferably chloride or fluoride) or hexafluoroantimonate (SbF 6 _) and Y + is a quaternary ammonium cation, quaternary phosphonium or ternary sulfonium .
- Halogenated Lewis acid based on aluminum, titanium, niobium, tantalum, antimony, nickel, zinc or iron may be a chlorinated, brominated, fluorinated or mixed derivative, for example a chlorofluorinated acid. Mention may be made more particularly of chlorides, fluorides or chlorofluorides of the following formulas:
- the following compounds are preferably used: TiCl 4 , TaCl 5 + TaF 5 , NbCl 5 + NbF 5 , SbCl 5 , SbFCI 4 , SbF 2 Cl 3, SbF 5 C, SbF 4 Cl, SbF 5 and SbCl 5 + SbF 5 . More particularly preferred are the antimonial compounds.
- the cation Y + may correspond to one of the following general formulas: R 1 R 2 R 3 R 4 N + , R 1 R 2 R 3 R 4 P + , R 1 R 2 in which the symbols R 1 to R 4 , identical or different, each denote a hydrocarbyl, chlorohydrocarbyl, fluorohydrocarbyl, chlorofluorohydrocarbyl or fluorocarbyl group having from 1 to 10 carbon atoms, saturated or unsaturated, cyclic or otherwise, or aromatic, one or more these groups may also contain one or more heteroatoms such as N, P, S or O.
- ammonium cation, phosphonium or sulfonium Y + may also be part of a saturated or unsaturated heterocycle, or aromatic having 1 to 3 carbon atoms. nitrogen, phosphorus or sulfur, and meet any of the following general formulas:
- R 1 and R 2 are as defined above.
- a salt containing 2 or 3 ammonium, phosphonium or sulfonium sites in their formula may also be suitable.
- salts Y + A that may be mentioned are tetraalkylammonium chlorides and fluorides, tetraalkylphosphonium chlorides and fluorides, and trialkylsulphonium chlorides and fluorides, alkyl pyridinium chlorides and fluorides, chlorides, fluorides and bromides of dialkyl imidazolium, and chlorides and fluorides of trialkyl imidazolium.
- fluoride or trimethyl sulfonium chloride N-ethyl-pyridinium chloride or fluoride, N-butyl-pyridinium chloride or fluoride, l-ethyl-3-methyl chloride or fluoride. imidazolium, and 1-butyl-3-methylimidazolium chloride or fluoride.
- the ionic liquids can be prepared in a manner known per se by suitably mixing the halogenated or oxyhalogenated Lewis acid and the organic salt Y + A.
- the catalyst may be triflic or trifluoroacetic acid as mentioned in US 6,166,274.
- stream A in addition to 1-chloro-3,3,3-trifluoropropene, stream A comprises co-products selected from the group consisting of 1, 3,3,3-tetrafluoropropene and 1,1,1,3 3-pentafluoropropane.
- the 1-chloro-3,3,3-trifluoropropene recovered in said stream A is in the form of a mixture of the two isomers Z and E as mentioned above.
- the content in stream A of co-products selected from the group consisting of 1,3,3,3-tetrafluoropropene and 1,1,1,3,3-pentafluoropropane is less than 0.5% by weight. mole.
- the content of 1, 3,3,3 tetrafluoropropene in said stream A is less than 0.5%, more preferably less than 0.4%, especially less than 0.3% by mol.
- the content of 1,1,1,3,3-pentafluoropropane in said stream A is less than 0.1%, more preferably less than 0.075%, in particular less than 0.05% by mol.
- Said stream A may also comprise HF and HCl.
- step i) is carried out at a temperature of 50 ° C to 150 ° C, preferably at a temperature of 75 ° C to 100 ° C.
- step i) is carried out at a pressure of 5 to 20 bara, preferably at a pressure of 10 to 18 bara, in particular of 12 to 18 bara.
- the molar ratio HF / [chlorinated compounds] at the inlet of the reactor is between 5 and 10, more preferably between 5 and 7, in particular between 5 and 6.
- the molar ratio HF / 1230za is between 5 and 10, more preferably between 5 and 7, in particular between 5 and 6.
- said method also comprises the steps of: (ii) at least one step of treating stream A to give a stream B comprising 1-chloro-3,3,3-trifluoropropene, HCl, HF and Zl-chloro -3,3,3-trifluoropropene and a stream C comprising predominantly HF (for example at least 50% by weight, preferably at least 70% by weight of HF); (iii) at least one step of recovering hydrochloric acid from stream B to give a current D of HCl and a stream E comprising E1-chloro-3,3,3-trifluoropropene, HCl, HF and Z1- chloro-3,3,3-trifluoropropene; (iv) at least one step of purifying the stream E resulting from stage (iii) to give E-1233zd, preferably with a purity greater than or equal to 98%, advantageously greater than or equal to 99%, and very advantageously greater than or equal to 99.9% by weight.
- the stream E resulting from stage (iii) is subjected to at least one separation stage to give a stream mainly comprising HF (for example at least 90% by weight, preferably at least 98% by weight and advantageously at least 99% by weight of HF) that can be recycled to the reactor and a stream comprising E1-chloro-3,3,3-trifluoropropene, HCl, HF and Zl-chloro. 3,3,3-trifluoropropene.
- the separation step is preferably a decantation, carried out at a temperature advantageously between -50 and 50 ° C, preferably between -20 ° C and 10 ° C.
- the treatment step (ii) is preferably a reflux column, advantageously carried out at a temperature between 30 and 120 ° C to give the stream C which is recycled to the reactor.
- Recovery of HCl in step (iii) is preferably achieved using a distillation column with a bottom reboiler and overhead reflux system.
- the temperature in the foot is advantageously between 20 and 110 ° C.
- the temperature at the head is advantageously between -50 and 0 ° C.
- the distillation of the HCl is typically carried out at a pressure of between 7 and 25 bar.
- the purification step (iv) preferably comprises at least one distillation step and advantageously at least two distillation steps.
- the purification step (iv) comprises at least one step of washing with water and / or washing with the aid of a basic solution, a drying step, and at least one distillation stage. This distillation step is intended to eliminate light products and also heavy products that can be partially recycled to the reactor, depending on whether they are recyclable or not.
- the process is carried out continuously.
- the present invention provides a composition comprising at least 98 mol% of (E / Z) -1-chloro-3,3,3-trifluoropropene and less than 0.5 mol% of coproducts selected from the group consisting of group consisting of 1,3,3,3-tetrafluoropropene and 1,1,1,3,3-pentafluoropropane.
- said composition comprises at least 99 mol% of (E / Z) -1-chloro-3,3,3-trifluoropropene and less than 0.5 mol% of co-products selected from the group consisting of 1,3 , 3,3-tetrafluoropropene and 1,1,1,3,3-pentafluoropropane.
- said composition comprises at least 99.5 mol% of (E / Z) -1-chloro-3,3,3-trifluoropropene and less than 0.5 mol% of co-products selected from the group consisting of 1 3,3,3-tetrafluoropropene and 1,1,1,3,3-pentafluoropropane.
- said composition comprises at least 99 mol% of (E / Z) -1-chloro-3,3,3-trifluoropropene, less than 0.5 mol% of 1,3,3,3-tetrafluoropropene and less than 0.1 mol% of 1,1,1,3,3-pentafluoropropane.
- said composition comprises at least 99 mol% of (E / Z) -1-chloro-3,3,3-trifluoropropene, less than 0.4 mol% of 1,3,3,3-tetrafluoropropene and less than 0.075 mol% 1,1,1,3,3-pentafluoropropane.
- said composition comprises at least 99 mol% of (E / Z) -1-chloro-3,3,3-trifluoropropene, less than 0.3 mol% of 1,3,3,3-tetrafluoropropene and less than 0.05 mol% 1,1,1,3,3-pentafluoropropane.
- said composition comprises at least 99.5 mol% of (E / Z) -1-chloro-3,3,3-trifluoropropene, less than 0.3 mol% of 1,3,3,3-trifluoropropene. tetrafluoropropene and less than 0.05 mol% 1,1,1,3,3-pentafluoropropane.
- said composition is obtained at the outlet of a reactor implementing the method according to the present invention.
- the equipment used consists of a reactor with a capacity of 60 liters in 316L stainless steel. It is provided with means for measuring temperature, pressure and liquid level.
- a dip tube is used to feed the reactants while the formed products circulate through a 5 meter reflux column before being condensed at the top. This column is filled with a structured metal packing that separates the low-boiling products while the raw material, the intermediate compounds and the unreacted HF are demoted in the reactor.
- a pressure regulating valve imposes an operating pressure on the assembly.
- An on-line sampling system is used to sample the flow of the exit gas which is thus directed to a gas chromatograph. The reagents are fed continuously and the products are analyzed and collected continuously.
- a quantity of 25 liter HF is introduced into the reactor.
- the reactor is maintained at a temperature of 90 ° C.
- the pressure regulation is adjusted to 15 bara.
- the reagents are then fed with the following flow rates: 2 kg / h of HF and 3.5 kg / h of 1230za, that is to say a molar ratio between the HF and the organic of 5.2.
- the composition results of the gas stream after five hours of operation are given in Table 1.
- Example 1 The procedure of Example 1 is repeated with a starting amount of 25 liters of a mixture comprising organic compounds and being free of HF.
- the mixture comprises an amount by weight of 10.7% of 1230%, 0.9% by weight of isomers 1231 (trichloromonofluoropropene), 5.7% by weight of isomers 1232 (dichlorodifluoropropene).
- the remainder consists mainly of dimers and heavy compounds.
- the reactor is heated in the same manner as before before feeding the reagents with the following flow rates: 2 kg / h of HF and 3.3 kg / h of 1230za, that is to say a molar ratio between HF and the organic of 5.4.
- Table 1 The composition results of the gas stream after five hours of operation are given in Table 1
- Example 1 The procedure of Example 1 is repeated with a starting amount of 25 liters of 1230za alone.
- the reactor is heated in the same manner as before before feeding the reactants with the following flow rates: 1.8 kg / h of HF and 2.9 kg / h of 1230za, that is to say a molar ratio between the HF and 1230za of 5.6.
- the composition results of the gas stream after five hours of operation are given in Table 1.
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Abstract
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Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| FR1854069A FR3081158B1 (fr) | 2018-05-16 | 2018-05-16 | Procede de production du 1-chloro-3,3,3-trifluoropropene. |
| PCT/FR2019/051067 WO2019220041A1 (fr) | 2018-05-16 | 2019-05-13 | Procédé de production du 1-chloro-3,3,3-trifluoropropène |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| EP3793967A1 true EP3793967A1 (fr) | 2021-03-24 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| EP19732719.0A Pending EP3793967A1 (fr) | 2018-05-16 | 2019-05-13 | Procédé de production du 1-chloro-3,3,3-trifluoropropène |
Country Status (5)
| Country | Link |
|---|---|
| US (2) | US11242304B2 (fr) |
| EP (1) | EP3793967A1 (fr) |
| CN (2) | CN112105595B (fr) |
| FR (1) | FR3081158B1 (fr) |
| WO (1) | WO2019220041A1 (fr) |
Families Citing this family (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| FR3023286B1 (fr) | 2014-07-02 | 2018-02-16 | Arkema France | Procede de fabrication de tetrafluoropropene |
| FR3081158B1 (fr) | 2018-05-16 | 2020-07-31 | Arkema France | Procede de production du 1-chloro-3,3,3-trifluoropropene. |
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| FR3081158B1 (fr) | 2018-05-16 | 2020-07-31 | Arkema France | Procede de production du 1-chloro-3,3,3-trifluoropropene. |
| FR3083232B1 (fr) | 2018-06-27 | 2021-11-12 | Arkema France | Procede de production du 1-chloro-3,3,3-trifluoropropene |
| FR3086287B1 (fr) | 2018-09-26 | 2020-09-18 | Arkema France | Stabilisation du 1-chloro-3,3,3-trifluoropropene |
-
2018
- 2018-05-16 FR FR1854069A patent/FR3081158B1/fr active Active
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2019
- 2019-05-13 CN CN201980030905.4A patent/CN112105595B/zh active Active
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| CN117209353A (zh) | 2023-12-12 |
| CN112105595A (zh) | 2020-12-18 |
| FR3081158A1 (fr) | 2019-11-22 |
| CN112105595B (zh) | 2023-08-15 |
| FR3081158B1 (fr) | 2020-07-31 |
| WO2019220041A1 (fr) | 2019-11-21 |
| US20220112145A1 (en) | 2022-04-14 |
| US11242304B2 (en) | 2022-02-08 |
| US12391634B2 (en) | 2025-08-19 |
| US20210238112A1 (en) | 2021-08-05 |
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