WO2022258915A1 - Composition azéotropique ou quasi-azéotropique comprenant chlorotrifluoroéthylène et/ou 1,1,2-trifluoroéthane - Google Patents
Composition azéotropique ou quasi-azéotropique comprenant chlorotrifluoroéthylène et/ou 1,1,2-trifluoroéthane Download PDFInfo
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- WO2022258915A1 WO2022258915A1 PCT/FR2022/051053 FR2022051053W WO2022258915A1 WO 2022258915 A1 WO2022258915 A1 WO 2022258915A1 FR 2022051053 W FR2022051053 W FR 2022051053W WO 2022258915 A1 WO2022258915 A1 WO 2022258915A1
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- trifluoroethane
- weight
- composition
- chloro
- azeotropic
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- 239000000203 mixture Substances 0.000 title claims abstract description 371
- WGZYQOSEVSXDNI-UHFFFAOYSA-N 1,1,2-trifluoroethane Chemical compound FCC(F)F WGZYQOSEVSXDNI-UHFFFAOYSA-N 0.000 title claims abstract description 123
- UUAGAQFQZIEFAH-UHFFFAOYSA-N chlorotrifluoroethylene Chemical group FC(F)=C(F)Cl UUAGAQFQZIEFAH-UHFFFAOYSA-N 0.000 title claims abstract description 97
- 150000001875 compounds Chemical class 0.000 claims abstract description 82
- NPNPZTNLOVBDOC-UHFFFAOYSA-N 1,1-difluoroethane Chemical compound CC(F)F NPNPZTNLOVBDOC-UHFFFAOYSA-N 0.000 claims abstract description 77
- HILNUELUDBMBJQ-UHFFFAOYSA-N 1-chloro-1,1,2-trifluoroethane Chemical compound FCC(F)(F)Cl HILNUELUDBMBJQ-UHFFFAOYSA-N 0.000 claims abstract description 33
- 238000009835 boiling Methods 0.000 claims description 122
- UJPMYEOUBPIPHQ-UHFFFAOYSA-N 1,1,1-trifluoroethane Chemical compound CC(F)(F)F UJPMYEOUBPIPHQ-UHFFFAOYSA-N 0.000 claims description 56
- AHFMSNDOYCFEPH-UHFFFAOYSA-N 1,2-difluoroethane Chemical compound FCCF AHFMSNDOYCFEPH-UHFFFAOYSA-N 0.000 claims description 55
- BQCIDUSAKPWEOX-UHFFFAOYSA-N 1,1-Difluoroethene Chemical group FC(F)=C BQCIDUSAKPWEOX-UHFFFAOYSA-N 0.000 claims description 54
- LVGUZGTVOIAKKC-UHFFFAOYSA-N 1,1,1,2-tetrafluoroethane Chemical compound FCC(F)(F)F LVGUZGTVOIAKKC-UHFFFAOYSA-N 0.000 claims description 53
- VEXZGXHMUGYJMC-UHFFFAOYSA-N Hydrochloric acid Chemical compound Cl VEXZGXHMUGYJMC-UHFFFAOYSA-N 0.000 claims description 50
- MIZLGWKEZAPEFJ-UHFFFAOYSA-N 1,1,2-trifluoroethene Chemical group FC=C(F)F MIZLGWKEZAPEFJ-UHFFFAOYSA-N 0.000 claims description 38
- FWAQVJAOVDYHAF-UHFFFAOYSA-N 1-chloro-1,2,2-trifluoroethane Chemical compound FC(F)C(F)Cl FWAQVJAOVDYHAF-UHFFFAOYSA-N 0.000 claims description 16
- CYXIKYKBLDZZNW-UHFFFAOYSA-N 2-Chloro-1,1,1-trifluoroethane Chemical compound FC(F)(F)CCl CYXIKYKBLDZZNW-UHFFFAOYSA-N 0.000 abstract description 32
- 229940051271 1,1-difluoroethane Drugs 0.000 description 73
- WXGNWUVNYMJENI-UHFFFAOYSA-N 1,1,2,2-tetrafluoroethane Chemical compound FC(F)C(F)F WXGNWUVNYMJENI-UHFFFAOYSA-N 0.000 description 53
- -1 VF 3 Chemical class 0.000 description 26
- 238000004519 manufacturing process Methods 0.000 description 5
- 239000007789 gas Substances 0.000 description 4
- 239000012071 phase Substances 0.000 description 4
- 239000006227 byproduct Substances 0.000 description 2
- 239000003054 catalyst Substances 0.000 description 2
- 239000007791 liquid phase Substances 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 239000000178 monomer Substances 0.000 description 2
- 238000000746 purification Methods 0.000 description 2
- 238000004064 recycling Methods 0.000 description 2
- 238000000926 separation method Methods 0.000 description 2
- 229940126062 Compound A Drugs 0.000 description 1
- NLDMNSXOCDLTTB-UHFFFAOYSA-N Heterophylliin A Natural products O1C2COC(=O)C3=CC(O)=C(O)C(O)=C3C3=C(O)C(O)=C(O)C=C3C(=O)OC2C(OC(=O)C=2C=C(O)C(O)=C(O)C=2)C(O)C1OC(=O)C1=CC(O)=C(O)C(O)=C1 NLDMNSXOCDLTTB-UHFFFAOYSA-N 0.000 description 1
- UFHFLCQGNIYNRP-UHFFFAOYSA-N Hydrogen Chemical compound [H][H] UFHFLCQGNIYNRP-UHFFFAOYSA-N 0.000 description 1
- 150000001336 alkenes Chemical class 0.000 description 1
- 230000015572 biosynthetic process Effects 0.000 description 1
- 229920002313 fluoropolymer Polymers 0.000 description 1
- 239000001257 hydrogen Substances 0.000 description 1
- 229910052739 hydrogen Inorganic materials 0.000 description 1
- 238000007327 hydrogenolysis reaction Methods 0.000 description 1
- 239000002184 metal Substances 0.000 description 1
- 239000000047 product Substances 0.000 description 1
- 239000007858 starting material Substances 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
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
Definitions
- Azeotropic or quasi-azeotropic composition comprising chlorotrifluoroethylene and/or 1,1,2-trifluoroethane
- the present invention relates to azeotropic or quasi-azeotropic compositions comprising chlorotrifluoroethylene and/or 1,1,2-trifluoroethane. These compositions can come from intermediate compositions during the production of the trifluoroethylene, and more particularly come from the recycling streams used during the production of the trifluoroethylene.
- Fluorinated olefins such as VF 3
- VF 3 Fluorinated olefins
- a known way of preparing trifluoroethylene uses as starting materials chlorotrifluoroethylene (CTFE) and hydrogen in the presence of a catalyst and in the gas phase.
- CTFE chlorotrifluoroethylene
- WO 2013/128102 discloses a process for producing trifluoroethylene by hydrogenolysis of CTFE in the gas phase and in the presence of a catalyst based on a group VIII metal at atmospheric pressure and at low temperatures.
- trifluoroethylene is accompanied by a multitude of by-products, some of which have a boiling point close to trifluoroethylene or close to chlorotrifluoroethylene. This involves the implementation of complex purification steps which can lead to the consequent loss in the product of interest. In addition, some of these by-products can form azeotropic compositions making separation difficult, if not impossible.
- the present invention relates to surprisingly identified azeotropic or quasi-azeotropic compositions.
- the present invention relates to an azeotropic or quasi-azeotropic composition
- an azeotropic or quasi-azeotropic composition comprising chlorotrifluoroethylene and at least one of the compounds selected from the group consisting of 1,1,2-trifluoroethane, 1,1-difluoroethane or a mixture of the two; characterized in that it contains at least 50% by weight of chlorotrifluoroethylene based on the total weight of said composition.
- said composition has a boiling point of between ⁇ 40° C. and 40° C. at a pressure of between 0.5 bara and 8 bara.
- said composition also comprises at least one of the additional compounds selected from the group consisting of 2-chloro-l,l,l-trifluoroethane, 2-chloro-l,l,2-trifluoroethane, l-chloro -l,l,2-trifluoroethane, trifluoroethylene, HF, HCl, 1,1,1-trifluoroethane, 1,2-difluoroethane, 1,1,1,2-tetrafluoroethane, 1,1-difluoroethylene, 1,1,2 ,2-tetrafluoroethane.
- the additional compounds selected from the group consisting of 2-chloro-l,l,l-trifluoroethane, 2-chloro-l,l,2-trifluoroethane, l-chloro -l,l,2-trifluoroethane, trifluoroethylene, HF, HCl, 1,1,1-trifluoroethane, 1,2-difluoro
- said composition contains at most 20% by weight of 1,1,2-trifluoroethane based on the total weight of said composition.
- said composition contains at most 50% by weight of 1,1-difluoroethane based on the total weight of said composition.
- the present invention relates to an azeotropic or quasi-azeotropic composition
- an azeotropic or quasi-azeotropic composition comprising 1,1,2-trifluoroethane and at least one of the compounds selected from the group consisting of 2-chloro-l,l,l-trifluoroethane, 1-chloro-1,1,2-trifluoroethane or a mixture of both.
- said composition has a boiling point of between ⁇ 10° C. and 70° C. at a pressure of between 0.5 bara and 8 bara.
- said composition contains between 35% and 99.99% by weight of 1,1,2-trifluoroethane based on the total weight of said composition.
- said composition contains at most 65% by weight of 2-chloro-1,1,1-trifluoroethane; or at most 38% by weight of 1-chloro-1,1,2-trifluoroethane based on the total weight of said composition.
- FIG. 1 represents the evolution of the bubble temperature and the dew temperature as a function of the mass content of CTFE for the binary CTFE/143 at a given pressure.
- FIG. 2 represents the evolution of the bubble temperature and the dew point temperature as a function of the CTFE mass content for the CTFE/152a binary at a given pressure.
- FIG. 3 represents the evolution of the bubble temperature and the dew temperature as a function of the mass content of 143 for the binary 143/133b at a given pressure.
- FIG. 4 represents the evolution of the bubble temperature and the dew temperature as a function of the mass content of 143 for the binary 143/133a at a given pressure.
- the present invention relates to azeotropic or quasi-azeotropic compositions.
- the term "quasi-azeotropic" has a broad meaning and is intended to include compositions which are strictly azeotropic and those which behave as an azeotropic mixture.
- a composition is azeotropic when the relative volatility between two compounds is equal to 1 or is between 0.99 and 1.01. In the present invention, it is considered that a composition is quasi-azeotropic when the relative volatility between two compounds is between 0.9 and 1.1.
- composition comprising chlorotrifluoroethylene (CTFE)
- the present invention provides an azeotropic or quasi-azeotropic composition comprising chlorotrifluoroethylene.
- said azeotropic or quasi-azeotropic composition comprises at least one of the compounds selected from the group consisting of 1,1,2-trifluoroethane (143), 1,1-difluoroethane (152a) or a mixture of both.
- the azeotropic or quasi-azeotropic composition may also comprise at least one of the additional compounds selected from the group consisting of 2-chloro-l,l,l-trifluoroethane, 2-chloro-l,l,2-trifluoroethane, l-chloro- l,l,2-trifluoroethane, trifluoroethylene, HF, HCl, 1,1,1-trifluoroethane, 1,2-difluoroethane, 1,1,1,2-tetrafluoroethane, 1,1-difluoroethylene and 1,1,2, 2-tetrafluoroethane.
- said composition may comprise: a) chlorotrifluoroethylene; b) at least one of the compounds selected from the group consisting of 1,1,2-trifluoroethane, 1,1-difluoroethane, or a mixture of the two; and c) optionally at least one of the additional compounds selected from the group consisting of 2-chloro-1,1,1-trifluoroethane, 2-chloro-1,1,2-trifluoroethane, 1-chloro-1,1,2- trifluoroethane, trifluoroethylene, HF, HCl, 1,1,1-trifluoroethane, 1,2-difluoroethane, 1,1,1,2-tetrafluoroethane, 1,1-difluoroethylene and 1,1,2,2-tetrafluoroethane.
- said azeotropic or quasi-azeotopic composition may comprise chlorotrifluoroethylene, 1,1,2-trifluoroethane and at least one of the additional compounds selected from the group consisting of 2-chloro-l,l,l-trifluoroethane , 2-chloro-l,l,2-trifluoroethane, l-chloro-l,l,2-trifluoroethane, trifluoroethylene, HF, HCl, 1,1,1-trifluoroethane, 1,2-difluoroethane, 1,1,1 ,2-tetrafluoroethane, 1,1-difluoroethylene and 1,1,2,2-tetrafluoroethane.
- said azeotropic or quasi-azeotropic composition may comprise chlorotrifluoroethylene, 1,1-difluoroethane and at least one of the additional compounds selected from the group consisting of 2-chloro-l,l,l-trifluoroethane, 2-chloro-l, l,2- trifluoroethane, l-chloro-l,l,2-trifluoroethane, trifluoroethylene, HF, HCl, 1,1,1- trifluoroethane, 1,2-difluoroethane, 1,1,1,2-tetrafluoroethane, 1, 1-difluoroethylene and 1,1,2,2-tetrafluoroethane.
- said azeotropic or quasi-azeotropic composition may comprise chlorotrifluoroethylene, 1,1,2-trifluoroethane, 1,1-difluoroethane and at least one of the additional compounds selected from the group consisting of 2-chloro-l,l,l- trifluoroethane, 2- chloro-l,l,2-trifluoroethane, l-chloro-l,l,2-trifluoroethane, trifluoroethylene, HF, HCl, 1,1,1- trifluoroethane, 1,2-difluoroethane, 1,1, 1,2-tetrafluoroethane, 1,1-difluoroethylene and 1,1,2,2-tetrafluoroethane.
- said composition has a boiling point of between -40°C and 40°C, more preferably between -35°C and 25°C.
- said composition has a boiling point of between -40°C and 40°C at a pressure of between 0.5 bara and 8 bara. More particularly, said composition has a boiling point of between -35°C and 25°C at a pressure of 1 bara to 6 bara.
- said composition comprises at least 50% by weight of chlorotrifluoroethylene based on the total weight of said composition.
- said composition comprises at least 52% by weight, or at least 54% by weight, or at least 56% by weight, or at least 58% by weight, or at least 60% by weight, or at least 62% by weight, or at least 64% by weight, or at least 66% by weight, or at least 68% by weight, or at least 70% by weight, or at least 72% by weight, or at least 74% by weight , or at least 76% by weight, or at least 78% by weight, or at least 80% by weight, or at least 82% by weight, or at least 84% by weight, or at least 86% by weight, or at least 88% by weight, or at least 90% by weight, or at least 92% by weight, or at least 94% by weight, or at least 96% by weight, or at least 98% by weight, or at least 99.99% by weight of chlorotrifluoroethylene based on the total weight of said composition.
- said composition comprises at most 20% by weight of 1,1,2-trifluoroethane based on the total weight of said composition.
- said composition comprises at most 18% by weight, or at most 16% by weight, or at most 14% by weight, or at most 12% by weight, or at most 10% by weight, or at most 8% by weight, or at most 6% by weight, or at most 4% by weight, or at most 2% by weight, or at most 0.01% by weight of 1,1,2-trifluoroethane based on the total weight of said composition.
- said composition comprises at most 50% by weight of
- said composition comprises at most 48% by weight, or at most 46% by weight, or at most 44% by weight, or at most 42% by weight, or at most 40% by weight, or at most 38% by weight or at most 36% by weight, or at most 34% by weight, or at most 32% by weight, or at most 30% by weight, or at most 28% by weight, or at most 26% by weight of 1,1-difluoroethane based on the total weight of said composition.
- composition according to the present invention may comprise at least one of the additional compounds selected from the group consisting of 2-chloro-
- composition may comprise at least two, or at least three, or at least four, or at least five, or at least six, or at least seven, or at least eight, or at least nine, or at least ten , or all of the additional compounds selected from the group consisting of 2-chloro-l,l,l-trifluoroethane, 2-chloro-l,l,2-trifluoroethane, l-chloro-l,l,2-trifluoroethane, trifluoroethylene, HF, HCl, 1,1,1- trifluoroethane, 1,2-difluoroethane, 1,1,1,2-tetrafluoroethane, 1,1-difluoroethylene and 1,1, 2, 2-tetrafluoroethane.
- said composition contains less than 10% by weight of said additional compounds based on the total weight of said composition.
- said composition contains less than 8% by weight, or less than 6% by weight, or less than 4% by weight, or less than 2% by weight, or less than 1% by weight, or less than 0, 5% by weight, or less than 0.1% by weight, or less than 0.05% by weight, or less than 0.01% by weight of said additional compounds based on the total weight of said composition.
- said azeotropic or quasi-azeotropic composition comprises chlorotrifluoroethylene and 1,1,2-trifluoroethane.
- said composition comprises from 80% to 99.99% by weight of chlorotrifluoroethylene based on the total weight of said composition.
- said composition comprises from 85% to 99.99% by weight of chlorotrifluoroethylene based on the total weight of said composition.
- said composition comprises from 90% to 99.99% by weight of chlorotrifluoroethylene based on the total weight of said composition.
- said composition comprises from 0.01% to 20% by weight of 1,1,2-trifluoroethane based on the total weight of said composition.
- said composition comprises from 0.01% to 15% by weight of 1,1,2-trifluoroethane based on the total weight of said composition.
- said composition comprises from 0.01% to 10% by weight of 1,1,2-trifluoroethane based on the total weight of said composition.
- said composition has a boiling point of between -40°C and 40°C, more preferably between -35°C and 25°C.
- said composition has a boiling point of between -40°C and 40°C at a pressure of between 0.5 bara and 8 bara. More particularly, said composition has a boiling point of between -35°C and 25°C at a pressure of 1 bara to 6 bara.
- said azeotropic or quasi-azeotropic composition may comprise from 80% to 99.99% by weight of chlorotrifluoroethylene and from 0.01% to 20% by weight of 1,1,2-trifluoroethane based on the total weight of said composition ; and has a boiling point between -40°C and 40°C at a pressure between 0.5 bara and 8 bara.
- said azeotropic or quasi-azeotropic composition comprises from 85% to 99.99% by weight of chlorotrifluoroethylene and from 0.01% to 15% by weight of 1,1,2-trifluoroethane based on the total weight of said composition; and has a boiling point between -40°C and 40°C at a pressure between 0.5 bara and 8 bara.
- said azeotropic or quasi-azeotropic composition comprises from 90% to 99.99% by weight of chlorotrifluoroethylene and from 0.01 to 10% by weight of 1,1,2-trifluoroethane based on the total weight of said composition; and has a boiling point between -30°C and 25°C at a pressure between 1 bara and 6 bara.
- said azeotropic or quasi-azeotropic composition comprises, preferably consists of: from 90% to 99.99% by weight of chlorotrifluoroethylene and from 0.01 to 10% by weight of 1,1,2-trifluoroethane on based on the total weight of said composition, and has a boiling point of between 20°C and 25°C at a pressure of 6 bara; from 92% to 99.99% by weight of chlorotrifluoroethylene and from 0.01 to 8% by weight of 1,1,2-trifluoroethane based on the total weight of said composition and has a boiling point between 12°C and 17°C at a pressure of 5 bara; from 92% to 99.99% by weight of chlorotrifluoroethylene and from 0.01 to 8% by weight of 1,1,2-trifluoroethane based on the total weight of said composition and has a boiling point between 5°C and 10°C at a pressure of 4 bara; from 94% to 99.99% by weight of chlorotrifluoroethylene and from 0.01
- said composition may also comprise 1,1-difluoroethane or additional compounds as defined above in the present application.
- said composition may comprise one, two, three, four, five, six, seven, eight, nine, ten, eleven or all of said selected additional compounds from the group consisting of 2-chloro-1,1,1-trifluoroethane, 2-chloro-1,1,2-trifluoroethane, 1-chloro-1,1,2-trifluoroethane, trifluoroethylene, HF, HCl, 1,1 ,1-trifluoroethane, 1,2-difluoroethane, 1,1,1,2-tetrafluoroethane, 1,1-difluoroethylene, 1,1,2,2-tetrafluoroethane and 1,1-difluoroethane.
- said azeotropic or quasi-azeotropic composition comprises, preferably consists of: from 90% to 99.99% by weight of chlorotrifluoroethylene, from 0.01% to 10% by weight of 1,1,2-trifluoroethane, and optionally the balance of at least one of the additional compounds selected from the group consisting of 2-chloro-1,1,1-trifluoroethane, 2-chloro-1,1,2-trifluoroethane, 1-chloro-1,1,2- trifluoroethane, trifluoroethylene, HF, HCl, 1,1,1-trifluoroethane, 1,2-difluoroethane, 1,1,1,2-tetrafluoroethane, 1,1-difluoroethylene, 1,1,2,2-tetrafluoroethane and 1, 1-difluoroethane based on the total weight of said composition; said composition having a boiling point of between 20°C and 25°C at a pressure of 6 bara; from 92% to 99.
- the present invention provides an azeotropic composition
- an azeotropic composition comprising, preferably consisting of, from 92% to 93% by weight of chlorotrifluoroethylene and from 7% to 8% by weight of 1,1,2-trifluoroethane; said composition having a boiling point of 21°C to 22°C at a pressure of 6 bara.
- said azeotropic composition comprises, more preferably consists of, from 92% to 93% by weight of chlorotrifluoroethylene and from 7% to 8% by weight of 1,1,2-trifluoroethane and optionally the balance of at least one of the additional compounds selected from the group consisting of 2 -chloro-l,l,l-trifluoroethane, 2-chloro-l,l,2-trifluoroethane, l-chloro-l,l,2-trifluoroethane, trifluoroethylene, HF, HCl, 1,1,1-trifluoroethane, 1 ,2-difluoroethane, 1,1,1,2-tetrafluoroethane, 1,1-difluoroethylene, 1,1,2,2-tetrafluoroethane and 1,1-difluoroethane based on the total weight of said composition; said composition having a boiling point of 21°C to 22°C at a pressure of 6 bara
- said azeotropic composition consists of 92.5% by weight of chlorotrifluoroethylene and 7.5% by weight of 1,1,2-trifluoroethane; said composition having a boiling point of 21.3°C at a pressure of 6 bara.
- the present invention provides an azeotropic composition
- an azeotropic composition comprising, preferably consisting of, from 93% to 94% by weight of chlorotrifluoroethylene and from 6% to 7% by weight of 1,1,2-trifluoroethane; said composition having a boiling point of 15°C to 16°C at a pressure of 5 bara.
- said azeotropic composition comprises, more preferably consists of, from 93% to 94% by weight of chlorotrifluoroethylene and from 6% to 7% by weight of 1,1,2-trifluoroethane and optionally the balance of at least one of the compounds additional compounds selected from the group consisting of 2-chloro-1,1,1-trifluoroethane, 2-chloro-1,1,2-trifluoroethane, 1-chloro-1,1,2-trifluoroethane, trifluoroethylene, HF, HCl, 1 ,1,1-trifluoroethane, 1,2-difluoroethane, 1,1,1,2-tetrafluoroethane, 1,1-difluoroethylene, 1,1,2,2-tetrafluoroethane and 1,1-difluoroethane based on the total weight of said composition; said composition having a boiling point of 15°C to 16°C at a pressure of 5 bara.
- said azeotropic composition consists of 93.4% by weight of chlorotrifluoroethylene and 6.6% by weight of 1,1,2-trifluoroethane; said composition having a boiling point of 15.2°C at a pressure of 5 bara.
- the present invention provides an azeotropic composition
- an azeotropic composition comprising, preferably consisting of, from 94% to 95% by weight of chlorotrifluoroethylene and from 5% to 6% by weight of 1,1,2-trifluoroethane; said composition having a boiling point of 8°C to 9°C at a pressure of 4 bara.
- said azeotropic composition comprises, more preferably consists of, from 94% to 95% by weight of chlorotrifluoroethylene and from 5% to 6% by weight of 1,1,2-trifluoroethane and optionally the balance of at least one of the compounds additional compounds selected from the group consisting of 2-chloro-1,1,1-trifluoroethane, 2-chloro-1,1,2-trifluoroethane, 1-chloro-1,1,2-trifluoroethane, trifluoroethylene, HF, HCl, 1 ,1,1-trifluoroethane, 1,2-difluoroethane, 1,1,1,2-tetrafluoroethane, 1,1-difluoroethylene, 1,1,2,2-tetrafluoroethane and 1,1-difluoroethane based on the total weight of said composition; said composition having a boiling point of 8°C to 9°C at a pressure of 4 bara.
- said azeotropic composition consists of 94.4% by weight of chlorotrifluoroethylene and 5.6% by weight of 1,1,2-trifluoroethane; said composition having a boiling point of 8.1°C at a pressure of 4 bara.
- the present invention provides an azeotropic composition
- an azeotropic composition comprising, preferably consisting of, from 95% to 96% by weight of chlorotrifluoroethylene and from 4% to 5% by weight of 1,1,2-trifluoroethane; said composition having a boiling point of -1°C to 0°C at a pressure of 3 bara.
- said azeotropic composition comprises, more preferably consists of, from 95% to 96% by weight of chlorotrifluoroethylene and from 4% to 5% by weight of 1,1,2-trifluoroethane and optionally the balance of at least one of the compounds additional compounds selected from the group consisting of 2-chloro-1,1,1-trifluoroethane, 2-chloro-1,1,2-trifluoroethane, 1-chloro-1,1,2-trifluoroethane, trifluoroethylene, HF, HCl, 1 ,1,1-trifluoroethane, 1,2-difluoroethane, 1,1,1,2-tetrafluoroethane,
- said azeotropic composition consists of 95.7% by weight of chlorotrifluoroethylene and 4.3% by weight of 1,1,2-trifluoroethane; said composition having a boiling point of -0.5°C at a pressure of 3 bara.
- the present invention provides an azeotropic composition
- an azeotropic composition comprising, preferably consisting of, from 97% to 98% by weight of chlorotrifluoroethylene and from 2% to 3% by weight of 1,1,2-trifluoroethane; said composition having a boiling point of -12°C to -11°C at a pressure of 2 bara.
- said azeotropic composition comprises, more preferably consists of, from 97% to 98% by weight of chlorotrifluoroethylene and from 3% to 4% by weight of 1,1,2-trifluoroethane and optionally the balance of at least one of the compounds additional compounds selected from the group consisting of 2-chloro-1,1,1-trifluoroethane, 2-chloro-1,1,2-trifluoroethane, 1-chloro-1,1,2-trifluoroethane, trifluoroethylene, HF, HCl, 1 ,1,1-trifluoroethane, 1,2-difluoroethane, 1,1,1,2-tetrafluoroethane,
- said azeotropic composition consists of 97.4% by weight of chlorotrifluoroethylene and 2.6% by weight of 1,1,2-trifluoroethane; said composition having a boiling point of -11.7°C at a pressure of 2 bara.
- the present invention provides an azeotropic composition
- an azeotropic composition comprising, preferably consisting of, from 99.5% to 99.99% by weight of chlorotrifluoroethylene and from 0.01% to 0.5% by weight of 1.1 ,2-trifluoroethane; said composition having a boiling point of -28°C to -29°C at a pressure of 1.013 bara.
- said azeotropic composition comprises, more preferably consists of, from 99.5% to 99.9% by weight of chlorotrifluoroethylene and from 0.01% to 0.5% by weight of 1,1,2-trifluoroethane and optionally the balance of at least one of the additional compounds selected from the group consisting of 2-chloro-1,1,1-trifluoroethane, 2-chloro-1,1,2-trifluoroethane, 1-chloro-1,1,2-trifluoroethane , trifluoroethylene, HF, HCl, 1,1,1-trifluoroethane, 1,2-difluoroethane, 1,1,1,2-tetrafluoroethane, 1,1-difluoroethylene, 1, 1,2,2-tetrafluoroethane and 1,1 -difluoroethane based on the total weight of said composition; said composition having a boiling point of -28°C to -29°C at a pressure of 1.013 bara.
- said azeotropic composition consists of 99.98% by weight of chlorotrifluoroethylene and 0.02% by weight of 1,1,2-trifluoroethane; said composition having a boiling point of -28.4°C at a pressure of 1.013 bara.
- the [Fig. 1] represents the evolution of the bubble temperature and the dew temperature as a function of the mass content of chlorotrifluoroethylene for the binary chlorotrifluoroethylene/l,l,2-trifluoroethane at a pressure of 1 to 6 bara.
- said azeotropic or quasi-azeotropic composition comprises chlorotrifluoroethylene and 1,1-difluoroethane.
- said azeotropic or quasi-azeotropic composition comprises from 60% to 80% by weight of chlorotrifluoroethylene based on the total weight of said composition.
- said azeotropic or quasi-azeotropic composition comprises from 63% to 77% by weight of chlorotrifluoroethylene based on the total weight of said composition.
- said azeotropic or quasi-azeotropic composition comprises from 66% to 74% by weight of chlorotrifluoroethylene based on the total weight of said composition.
- said azeotropic or quasi-azeotropic composition comprises from 20% to 40% by weight of 1,1-difluoroethane based on the total weight of said composition.
- said azeotropic or quasi-azeotropic composition comprises from 23% to 37% by weight of 1,1-difluoroethane based on the total weight of said composition.
- said azeotropic or quasi-azeotropic composition comprises from 26% to 34% by weight of 1,1-difluoroethane based on the total weight of said composition.
- said composition has a boiling point of between -40°C and 30°C, more preferably between -35°C and 16°C.
- said composition has a boiling point of between -40°C and 30°C at a pressure of between 0.5 bara and 8 bara. More particularly, said composition has a boiling point of between -35°C and 16°C at a pressure of 1 bara to 6 bara.
- said azeotropic or quasi-azeotropic composition may comprise from 60% to 80% by weight of chlorotrifluoroethylene and from 20 to 40% by weight of 1,1-difluoroethane based on the total weight of said composition; and has a boiling point between -40°C and 30°C at a pressure between 0.5 bara and 8 bara.
- said azeotropic or quasi-azeotropic composition may comprise from 63% to 77% by weight of chlorotrifluoroethylene and from 23 to 37% by weight of 1,1-difluoroethane based on the total weight of said composition; and has a boiling point between -40°C and 30°C at a pressure between 0.5 bara and 8 bara.
- said azeotropic or quasi-azeotropic composition comprises from 66% to 74% by weight of chlorotrifluoroethylene and from 26 to 34% by weight of 1,1-difluoroethane based on the total weight of said composition; and has a boiling point between -35°C and 16°C at a pressure between 1 bara and 6 bara.
- said azeotropic or quasi-azeotropic composition comprises, preferably consists of: from 66% to 74% by weight of chlorotrifluoroethylene and from 26 to 34% by weight of 1,1-difluoroethane based on the total weight of said composition, and has a boiling point between 14°C and 17°C at a pressure of 6 bara; from 66% to 74% by weight of chlorotrifluoroethylene and from 26 to 34% by weight of 1,1-difluoroethane and has a boiling point of between 7°C and 11°C at a pressure of 5 bara; from 66% to 74% by weight of chlorotrifluoroethylene and from 26 to 34% by weight of 1,1-difluoroethane and has a boiling point of between 0°C and 4°C at a pressure of 4 bara; from 66% to 74% by weight of chlorotrifluoroethylene and from 26 to 34% by weight of 1,1-difluoroethane and has has a boiling
- composition may also comprise
- composition may comprise one, two, three, four, five, six, seven, eight, nine, ten, eleven or all of said additional compounds selected from the group consisting of 2-chloro-1, l,l-trifluoroethane, 2-chloro-l,l,2-trifluoroethane, 1-chloro-l,l,2-trifluoroethane, trifluoroethylene, HF, HCl, 1,1,1-trifluoroethane, 1,2-difluoroethane, 1,1,1,2-tetrafluoroethane, 1,1-difluoroethylene, 1,1,2,2-tetrafluoroethane and
- said azeotropic or quasi-azeotropic composition comprises, preferably consists of: from 66% to 74% by weight of chlorotrifluoroethylene, from 26 to 34% by weight of 1,1-difluoroethane and optionally the balance of at least one of additional compounds selected from the group consisting of 2-chloro-1,1,1-trifluoroethane, 2-chloro-1,1,2-trifluoroethane, 1-chloro-1,1,2-trifluoroethane, trifluoroethylene, HF, HCl, 1,1,1-trifluoroethane, 1,2-difluoroethane, 1,1,1,2-tetrafluoroethane, 1,1-difluoroethylene, 1,1,2,2-tetrafluoroethane and 1,1,2-trifluoroethane based on total weight of said composition; said composition having a boiling point of between 14°C and 17°C at a pressure of 6 bara; from 66% to 74% by weight of
- the present invention provides an azeotropic composition
- an azeotropic composition comprising, preferably consisting of, from 69% to 70% by weight of chlorotrifluoroethylene and from 30% to 31% by weight of 1,1-difluoroethane based on the total weight of said composition; said composition having a boiling point of -35°C to 16°C at a pressure of 1 to 6 bara.
- the present invention provides an azeotropic composition
- an azeotropic composition comprising, preferably consisting of, from 69% to 70% by weight of chlorotrifluoroethylene, from 30% to 31% by weight of 1,1-difluoroethane and optionally the balance of at least least one of the additional compounds selected from the group consisting of 2-chloro-1,1,1-trifluoroethane, 2-chloro-1,1,2-trifluoroethane, 1-chloro-1,1,2-trifluoroethane, trifluoroethylene, HF , HCl, 1,1,1-trifluoroethane, 1,2-difluoroethane, 1, 1,1,2-tetrafluoroethane, 1,1-difluoroethylene, 1,1,2,2-tetrafluoroethane and 1,1,2-trifluoroethane based on the total weight of said composition; said composition having a boiling point of -35°C to 16°C at a pressure of 1 to 6
- said azeotropic composition consists of 69.1% by weight of chlorotrifluoroethylene and 30.9% by weight of 1,1-difluoroethane based on the total weight of the composition and has a boiling point of 15.3°C. at 6 bar.
- said azeotropic composition consists of 69.2% by weight of chlorotrifluoroethylene and 30.8% by weight of 1,1-difluoroethane based on the total weight of the composition and has a boiling point of 9.2°C. at 5 bar.
- said azeotropic composition consists of 69.3% by weight of chlorotrifluoroethylene and 30.7% by weight of 1,1-difluoroethane based on the total weight of the composition and has a boiling point of 2.2°C. at 4 bar.
- said azeotropic composition consists of 69.4% by weight of chlorotrifluoroethylene and 30.6% by weight of 1,1-difluoroethane based on the total weight of the composition and has a boiling point of -6.2° C at 3 bar.
- said azeotropic composition consists of 69.5% by weight of chlorotrifluoroethylene and 30.5% by weight of 1,1-difluoroethane based on the total weight of the composition and has a boiling point of -17.2° C at 2 bar.
- said azeotropic composition consists of 69.7% by weight of chlorotrifluoroethylene and 30.3% by weight of 1,1-difluoroethane based on the total weight of the composition and has a boiling point of -33.7° C at 1 bar.
- the [Fig. 2] represents the evolution of the bubble temperature and the dew temperature as a function of the mass content of chlorotrifluoroethylene for the binary chlorotrifluoroethylene/l,l-difluoroethane at a pressure of 1 to 6 bara.
- the present invention relates to an azeotropic or quasi-azeotropic composition
- an azeotropic or quasi-azeotropic composition comprising 1,1,2-trifluoroethane.
- said composition comprises at least one of the compounds selected from the group consisting of 2-chloro-1,1,1-trifluoroethane (133a) and 1-chloro-1,1,2-trifluoroethane (133b) or a mixture of the two.
- said composition may also comprise at least one of the additional compounds selected from the group consisting of 2-chloro-1,1,2-trifluoroethane, chlorotrifluoroethylene, trifluoroethylene, HF, HCl, 1,1,1- trifluoroethane, 1,1-difluoroethane, 1,2-difluoroethane, 1,1,1,2-tetrafluoroethane, 1,1-difluoroethylene and 1,1,2,2-tetrafluoroethane.
- the additional compounds selected from the group consisting of 2-chloro-1,1,2-trifluoroethane, chlorotrifluoroethylene, trifluoroethylene, HF, HCl, 1,1,1- trifluoroethane, 1,1-difluoroethane, 1,2-difluoroethane, 1,1,1,2-tetrafluoroethane, 1,1-difluoroethylene and 1,1,2,2-tetrafluoroethane.
- said azeotropic or quasi-azeotropic composition may comprise: a) 1,1,2-trifluoroethane; b) at least one of compounds selected from the group consisting of 2-chloro-1,1,1-trifluoroethane (133a) and 1-chloro-1,1,2-trifluoroethane (133b) or a mixture of both; and c) optionally at least one of the additional compounds selected from the group consisting of 2-chloro-1,1,2-trifluoroethane, chlorotrifluoroethylene, trifluoroethylene, HF, HCl, 1,1,1-trifluoroethane, 1,1-difluoroethane, 1,2-difluoroethane, 1,1,1,2-tetrafluoroethane, 1,1-difluoroethylene and 1,1,2,2-tetrafluoroethane.
- said azeotropic or quasi-azeotropic composition may comprise 1,1,2-trifluoroethane, 2-chloro-l,l,l-trifluoroethane and optionally at least one of the additional compounds selected from the group consisting of 2 -chloro-l,l,2-trifluoroethane, chlorotrifluoroethylene, trifluoroethylene, HF, HCl, 1,1,1-trifluoroethane, 1,1-difluoroethane, 1,2-difluoroethane, 1,1,1,2-tetrafluoroethane, 1 ,1-difluoroethylene and 1,1,2,2-tetrafluoroethane.
- said azeotropic or quasi-azeotropic composition may comprise
- said azeotropic or quasi-azeotropic composition may comprise
- said azeotropic or quasi-azeotropic composition has a boiling point of between -10°C and 70°C.
- said azeotropic or quasi-azeotropic composition has a boiling point of between ⁇ 10° C. and 70° C. at a pressure of between 0.5 bara and 8 bara.
- said azeotropic or quasi-azeotropic composition has a boiling point of between 0° C. and 65° C. at a pressure of 1 to 6 bara.
- said composition comprises at least 30% by weight, advantageously at least 32% by weight, preferably at least 34% by weight, in particular at least 36% by weight, more particularly at least 38% by weight of 1,1,2-trifluoroethane based on the total weight of said composition.
- said composition comprises at most 46% by weight, advantageously at most 44% by weight, preferably at most 42% by weight, in particular at most 40% by weight, more particularly at most 38% by weight of 1-chloro-1,1,2-trifluoroethane based on the total weight of said composition.
- said composition comprises at most 66% by weight, advantageously at most 65% by weight, preferably at most 64% by weight, in particular at most 63% by weight, more particularly at most 62% by weight of 2-chloro-1,1,1-trifluoroethane based on the total weight of said composition.
- composition according to the present invention may comprise at least one of the additional compounds selected from the group consisting of 2-chloro-
- 1.1.2-trifluoroethane chlorotrifluoroethylene, trifluoroethylene, HF, HCl, 1,1,1-trifluoroethane, 1,1-difluoroethane, 1,2-difluoroethane, 1,1,1,2-tetrafluoroethane, 1,1-difluoroethylene and 1.1.2.2-tetrafluoroethane.
- said composition may comprise at least two, or at least three, or at least four, or at least five, or at least six, or at least seven, or at least eight, or at least nine, or at least ten, or at least eleven, or all of the additional compounds selected from the group consisting of 2-chloro-1,1,2-trifluoroethane, chlorotrifluoroethylene, trifluoroethylene, HF, HCl, 1,1,1-trifluoroethane, 1,1- difluoroethane,
- said composition contains less than 10% by weight of said additional compounds based on the total weight of the composition.
- said composition less than 8% by weight, or less than 6% by weight, or less than 4% by weight, or less than 2% by weight, or less than 1% by weight, or less than 0.5 % by weight, or less than 0.1% by weight, or less than 0.05% by weight, or less than 0.01% by weight of said additional compounds based on the total weight of the composition.
- said azeotropic or quasi-azeotropic composition comprises 1,1,2-trifluoroethane and 1-chloro-1,1,2-trifluoroethane.
- said composition comprises from 55% to 99.99% by weight of 1,1,2-trifluoroethane based on the total weight of said composition.
- said composition comprises from 60% to 99.99% by weight of 1,1,2-trifluoroethane based on the total weight of said composition.
- said composition comprises from 62% to 99.99% by weight of 1,1,2-trifluoroethane based on the total weight of said composition.
- said composition comprises from 0.01% to 45% by weight of 1-chloro-1,1,2-trifluoroethane based on the total weight of said composition.
- said composition comprises from 0.01% to 40% by weight of 1-chloro-1,1,2-trifluoroethane based on the total weight of said composition.
- said composition comprises from 0.01% to 38% by weight of 1-chloro-1,1,2-trifluoroethane based on the total weight of said composition.
- said composition has a boiling point of between 0°C and 40°C, more preferably between 0°C and 35°C.
- said composition has a boiling point of between 0° C. and 40° C. at a pressure of 1 bara to 3 bara. More particularly, said composition has a boiling point of between 0° C. and 35° C. at a pressure of 1 bara to 3 bara.
- said azeotropic or quasi-azeotropic composition comprises from 60 to 99.99% by weight of 1,1,2-trifluoroethane and from 0.01% to 40% by weight of l-chloro-1,1,2- trifluoroethane based on the total weight of said composition; and has a boiling point between 0°C and 40°C at a pressure of 1 to 3 bara.
- said azeotropic or quasi-azeotropic composition comprises from 62 to 99.99% by weight of 1,1,2-trifluoroethane and from 0.01% to 38% by weight of l-chloro-l,l,2- trifluoroethane based on the total weight of said composition; and has a boiling point between 0°C and 35°C at a pressure of 1 to 3 bara.
- said azeotropic or quasi-azeotropic composition comprises, preferably consisting of: from 62% to 84% by weight of 1,1,2-trifluoroethane and from 16% to 38% by weight of 1-chloro-1 ,1,2-trifluoroethane based on the total weight of said composition; and has a boiling point of 2°C to 6°C at a pressure of 1 bara; from 62% to 84% by weight of 1,1,2-trifluoroethane and from 16% to 38% by weight of 1-chloro-1,1,2-trifluoroethane based on the total weight of said composition; and has a boiling point of 2°C to 6°C at a pressure of 1.013 bara; from 74% to 99.99% by weight of 1,1,2-trifluoroethane and from 0.01% to 26% by weight of 1-chloro-1,1,2-trifluoroethane based on the total weight of said composition; and has a boiling point of 20°C to 24°C at
- said composition may also comprise 2-chloro-1,1,1-trifluoroethane or additional compounds as defined above according to the second aspect of the present invention.
- said composition may comprise one, two, three, four, five, six, seven, eight, nine, ten, eleven or all of said additional compounds selected from the group consisting of 2-chloro-1, l,l-trifluoroethane, 2-chloro-l,l,2-trifluoroethane, chlorotrifluoroethylene, trifluoroethylene, HF, HCl, 1,1,1-trifluoroethane, 1,1-difluoroethane, 1,2-difluoroethane, 1,1, 1,2-tetrafluoroethane, 1,1-difluoroethylene and 1,1,2,2-tetrafluoroethane.
- Said azeotropic or quasi-azeotropic composition may also comprise, preferably consist of: from 62% to 84% by weight of 1,1,2-trifluoroethane, from 16% to 38% by weight of 1-chloro-1,1,2-trifluoroethane and optionally the balance of at least one of the additional compounds selected from the group consisting of 2-chloro-l,l,l-trifluoroethane, 2-chloro-l,l,2-trifluoroethane, chlorotrifluoroethylene, trifluoroethylene, HF, HCl,
- the present invention provides azeotropic compositions comprising, preferably consisting of, from 71% to 72% by weight of 1,1,2-trifluoroethane and from 28% to 29% by weight of l-chloro-1 ,1,2-trifluoroethane based on the total weight of said composition; and having a boiling point of 3°C to 4°C at a pressure of 1 bara or a boiling point of 4°C to 5°C at a pressure of 1.013 bara.
- the present invention provides azeotropic compositions comprising, preferably consisting of, from 71% to 72% by weight of 1,1,2-trifluoroethane, from 28% to 29% by weight of l-chloro-1 ,l,2-trifluoroethane, and optionally the balance of at least one of the additional compounds selected from the group consisting of 2-chloro-l,l,l-trifluoroethane, 2-chloro-l,l,2-trifluoroethane, chlorotrifluoroethylene, trifluoroethylene, HF, HCl, 1,1,1-trifluoroethane, 1,1-difluoroethane, 1,2-difluoroethane, 1,1,1,2-tetrafluoroethane, 1,1-difluoroethylene, 1,1,2,2- tetrafluoroethane based on the total weight of said composition; and having a boiling point of 3°C to 4°C at a pressure
- said azeotropic composition consists of 71.6% of 1,1,2-trifluoroethane and 28.4% by weight of l-chloro-l,l,2-trifluoroethane based on the total weight of said composition ; and has a boiling point of 3.9°C at a pressure of 1 bara. More particularly preferred, said azeotropic composition consists of 71.8% of 1,1,2-trifluoroethane and 28.2% by weight of l-chloro-l,l,2-trifluoroethane based on the total weight of said composition ; and has a boiling point of 4.2°C at a pressure of 1.013 bara.
- the present invention also provides azeotropic compositions comprising, preferably consisting of, from 88.5% to 89.5% by weight of 1,1,2-trifluoroethane and from 10.5% to 11.5 % by weight of 1-chloro-1,1,2-trifluoroethane based on the total weight of said composition; and having a boiling point of 21°C to 23°C at a pressure of 2 bara.
- the present invention also provides azeotropic compositions comprising, preferably consisting of, from 88.5% to 89.5% by weight of 1,1,2-trifluoroethane, from 10.5% to 11.5 % by weight of 1-chloro-1,1,2-trifluoroethane and optionally the balance of at least one of the additional compounds selected from the group consisting of 2-chloro-1,1,1-trifluoroethane, 2-chloro-1, l,2-trifluoroethane, chlorotrifluoroethylene, trifluoroethylene, HF, HCl, 1,1,1-trifluoroethane, 1,1-difluoroethane, 1,2-difluoroethane, 1,1,1,2-tetrafluoroethane, 1,1-difluoroethylene, 1,1,2,2-tetrafluoroethane based on the total weight of said composition; and having a boiling point of 21°C to 23°C at a pressure of
- said azeotropic composition consists of 88.8% by weight of 1,1,2-trifluoroethane and 10.2% by weight of l-chloro-l,l,2-trifluoroethane based on the total weight of said composition; and has a boiling point of 21.8°C at a pressure of 2 bara.
- the [Fig. 3] represents the evolution of the bubble temperature and the dew temperature as a function of the mass content of 1,1,2-trifluoroethane for the binary 1,1,2-trifluoroethane/l-chloro-l,l, 2-trifluoroethane at a pressure of 1 to 6 bara.
- said azeotropic or quasi-azeotropic composition comprises 1,1,2-trifluoroethane and 2-chloro-l,l,l-trifluoroethane.
- said composition comprises from 30% to 99.99% by weight of 1,1,2-trifluoroethane based on the total weight of said composition.
- said composition comprises from 35% to 99.99% by weight of 1,1,2-trifluoroethane based on the total weight of said composition.
- said composition comprises from 38% to 99.99% by weight of 1,1,2-trifluoroethane based on the total weight of said composition.
- said composition comprises from 0.01% to 70% by weight of 2-chloro-1,1,1-trifluoroethane based on the total weight of said composition.
- said composition comprises from 0.01% to 65% by weight of 2-chloro-1,1,1-trifluoroethane based on the total weight of said composition.
- said composition comprises from 0.01% to 62% by weight of 2-chloro-1,1,1-trifluoroethane based on the total weight of said composition.
- said composition has a boiling point of between 0°C and 40°C, more preferably between 0°C and 35°C.
- said composition has a boiling point of between 0° C. and 40° C. at a pressure of 1 bara to 3 bara. More particularly, said composition has a boiling point of between 0° C. and 35° C. at a pressure of 1 bara to 3 bara.
- said azeotropic or quasi-azeotropic composition comprises from 35 to 99.99% by weight of 1,1,2-trifluoroethane and from 0.01% to 65% by weight of 2-chloro-1, l,l-trifluoroethane based on the total weight of said composition.
- said azeotropic or quasi-azeotropic composition comprises from 35 to 99.99% by weight of 1,1,2- trifluoroethane and from 0.01% to 65% by weight of 2-chloro-1,1,1-trifluoroethane based on the total weight of said composition; and has a boiling point between 0°C and 40°C at a pressure of 1 to 3 bara.
- said azeotropic or quasi-azeotropic composition comprises from 38 to 99.99% by weight of 1,1,2-trifluoroethane and from 0.01% to 62% by weight of 2-chloro-1, l,l-trifluoroethane based on the total weight of said composition.
- said azeotropic or quasi-azeotropic composition comprises from 38 to 99.99% by weight of 1,1,2-trifluoroethane and from 0.01% to 62% by weight of 2-chloro-l,l,l- trifluoroethane based on the total weight of said composition; and has a boiling point between 0°C and 35°C at a pressure of 1 to 3 bara.
- said azeotropic or quasi-azeotropic composition comprises, preferably consisting of: from 38 to 66% by weight of 1,1,2-trifluoroethane and from 34% to 62% by weight of 2-chloro-
- 1,1,1-trifluoroethane based on the total weight of said composition having a boiling point of 0°C to 5°C at a pressure of 1 bara; from 38 to 66% by weight of 1,1,2-trifluoroethane and from 34% to 62% by weight of 2-chloro-
- 1,1,1-trifluoroethane based on the total weight of said composition having a boiling point of 0°C to 5°C at a pressure of 1.013 bara; from 50% to 94% by weight of 1,1,2-trifluoroethane and from 6% to 50% by weight of 2-chloro-
- 1,1,1-trifluoroethane based on the total weight of said composition having a boiling point of 18°C to 23°C at a pressure of 2 bara; from 72% to 99.99% by weight of 1,1,2-trifluoroethane and from 0.01% to 28% by weight of 2-chloro-1,1,1-trifluoroethane based on the total weight of said composition having a boiling point of 31°C to 35°C at a pressure of 3 bara.
- said composition may also comprise 1-chloro-1,1,2-trifluoroethane or additional compounds as defined above according to the second aspect of the present invention.
- said composition may comprise one, two, three, four, five, six, seven, eight, nine, ten, eleven or all of said additional compounds selected from the group consisting of l-chloro-1, 1,2- trifluoroethane, 2-chloro-l,l,2-trifluoroethane, chlorotrifluoroethylene, trifluoroethylene, HF, HCl, 1,1,1-trifluoroethane, 1,1-difluoroethane, 1,2-difluoroethane, 1,1, 1,2-tetrafluoroethane,
- Said azeotropic or quasi-azeotropic composition may also comprise, preferably consist of: from 38 to 66% by weight of 1,1,2-trifluoroethane, from 34% to 62% by weight of 2-chloro-l,l, l-trifluoroethane and optionally the balance of at least one of the additional compounds selected from the group consisting of l-chloro-l,l,2-trifluoroethane, 2-chloro-l,l,2-trifluoroethane, chlorotrifluoroethylene, trifluoroethylene, HF, HCI,
- the present invention provides azeotropic compositions comprising, preferably consisting of, from 50.5% to 51.5% by weight of 1,1,2-trifluoroethane and 48.5% to 49.5% by weight of 2-chloro-1,1,1-trifluoroethane based on the total weight of said composition; and having a boiling point of 2.5°C to 3.5°C at a pressure of 1 bara.
- the present invention provides azeotropic compositions comprising, preferably consisting of, from 50.5% to 51.5% by weight of 1,1,2-trifluoroethane, from 48.5% to 49.5% by weight of 2-chloro-l,l,l-trifluoroethane and optionally the balance of at least one of the additional compounds selected from the group consisting of l-chloro-l,l,2-trifluoroethane, 2-chloro-l,l ,2-trifluoroethane, chlorotrifluoroethylene, trifluoroethylene, HF, HCl, 1,1,1-trifluoroethane, 1,1-difluoroethane,
- said azeotropic composition consists of 50.9% by weight of 1,1,2-trifluoroethane and 49.1% by weight of 2-chloro-l,l,l-trifluoroethane based on the total weight of said composition; and has a boiling point of 2.7°C at a pressure of 1 bara.
- the present invention provides azeotropic compositions comprising, preferably consisting of, from 51% to 52% by weight of 1,1,2-trifluoroethane and 48% to 49% by weight of 2-chloro-1, l,l-trifluoroethane based on the total weight of said composition; and having a boiling point of 2.5°C to 3.5°C at a pressure of 1.013 bara.
- the present invention provides azeotropic compositions comprising, preferably consisting of, from 51% to 52% by weight of 1,1,2-trifluoroethane, from 48% to 49% by weight of 2-chloro-1 ,l,l-trifluoroethane and optionally the balance of at least one of the additional compounds selected from the group consisting of l-chloro-l,l,2-trifluoroethane, 2-chloro-l,l,2-trifluoroethane, chlorotrifluoroethylene, trifluoroethylene , HF, HCl, 1,1,1-trifluoroethane, 1,1-difluoroethane, 1,2-difluoroethane,
- said azeotropic composition consists of 51.2% by weight of 1,1,2-trifluoroethane and 48.8% by weight of 2-chloro-l,l,l-trifluoroethane based on the total weight of said composition; and has a boiling point of 3.1°C at a pressure of 1.013 bara.
- the present invention provides an azeotropic composition
- an azeotropic composition comprising, preferably consisting of, from 72.5% to 73.5% by weight of 1,1,2-trifluoroethane and from 26.5% to 27.5% by weight of 2-chloro-1,1,1-trifluoroethane based on the total weight of said composition; and having a boiling point of 21°C to 22°C at a pressure of 2 bara.
- the present invention provides an azeotropic composition
- an azeotropic composition comprising, preferably consisting of, from 72.5% to 73.5% by weight of 1,1,2-trifluoroethane, from 26.5% to 27.5% by weight of 2-chloro-l,l,l-trifluoroethane and optionally the balance of at least one of the additional compounds selected from the group consisting of l-chloro-l,l,2-trifluoroethane, 2-chloro-l,l ,2-trifluoroethane, chlorotrifluoroethylene, trifluoroethylene, HF, HCl, 1,1,1-trifluoroethane, 1,1-difluoroethane, 1,2-difluoroethane, 1,1,1,2-tetrafluoroethane, 1,1-difluoroethylene and 1 , 1,2,2-tetrafluoroethane based on the total weight of said composition; and having a boiling point of 21°
- said azeotropic composition consists of 73% by weight of 1,1,2-trifluoroethane and 27% by weight of 2-chloro-l,l,l-trifluoroethane based on the total weight of said composition; and has a boiling point of 21.5°C at a pressure of 2 bara.
- the [Fig. 4] represents the evolution of the bubble temperature and the dew temperature as a function of the mass content of 1,1,2-trifluoroethane for the binary l,l,2-trifluoroethane/2-chloro-l,l, l-trifluoroethane at a pressure of 1 to 6 bara.
- said quasi-azeotropic composition comprises, preferably consists of, from 0.01% to 0.06% by weight of 1,1,2-trifluoroethane and from 99.94% to 99.99% by weight of 2-chloro-1,1,1-trifluoroethane based on the total weight of said composition.
- said quasi-azeotropic composition comprises, preferably consists of, from 0.01% to 0.06% by weight of 1,1,2-trifluoroethane and from 99.94% to 99.99% by weight of 2 -chloro-
- said quasi-azeotropic composition comprises, preferably consists of, from 0.01% to 0.06% by weight of 1,1,2-trifluoroethane, from 99.94% to 99.99% by weight of 2 -chloro-l,l,l-trifluoroethane and optionally the balance of at least one of the additional compounds selected from the group consisting of 1-chloro-
- said quasi-azeotropic composition comprises, preferably consists of, from 0.01% to 0.06% by weight of 1,1,2-trifluoroethane, from 99.94% to 99.99% by weight of 2 - chloro-l,l,l-trifluoroethane and optionally the balance of at least one of the additional compounds selected from the group consisting of l-chloro-l,l,2-trifluoroethane, 2-chloro-l,l,2-trifluoroethane , chlorotrifluoroethylene, trifluoroethylene, HF, HCl, 1,1,1-trifluoroethane, 1,1-difluoroethane, 1,2-difluoroethane, 1,1,1,2-tetrafluoroethane, 1,1-difluoroethylene and 1,1,2 ,2-tetrafluoroethane based on the total weight of said composition; and has a boiling point of 63.5°C to 64°C at a pressure
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EP22735011.3A EP4352031A1 (fr) | 2021-06-07 | 2022-06-03 | Composition azéotropique ou quasi-azéotropique comprenant chlorotrifluoroéthylène et/ou 1,1,2-trifluoroéthane |
JP2023575427A JP2024520763A (ja) | 2021-06-07 | 2022-06-03 | クロロトリフルオロエチレン及び/又は1,1,2-トリフルオロエタンを含む共沸又は準共沸組成物 |
CN202280039961.6A CN117529463A (zh) | 2021-06-07 | 2022-06-03 | 包含氯三氟乙烯和/或1,1,2-三氟乙烷的共沸或准共沸组合物 |
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US20210403778A1 (en) * | 2019-03-11 | 2021-12-30 | Daikin Industries, Ltd. | Composition containing 1,1,2-trifluoroethane |
Citations (3)
Publication number | Priority date | Publication date | Assignee | Title |
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WO2013128102A1 (fr) | 2012-02-28 | 2013-09-06 | Arkema France | Procede de synthese du trifluoroethylene a partir du chlorotrifluoroethylene |
CN105753634A (zh) * | 2015-01-07 | 2016-07-13 | 旭硝子株式会社 | 类共沸组合物以及经纯化的含氟化合物的制造方法 |
WO2020184635A1 (fr) * | 2019-03-11 | 2020-09-17 | ダイキン工業株式会社 | Composition contenant du 1,1,2-trifluoroéthane |
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Patent Citations (3)
Publication number | Priority date | Publication date | Assignee | Title |
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WO2013128102A1 (fr) | 2012-02-28 | 2013-09-06 | Arkema France | Procede de synthese du trifluoroethylene a partir du chlorotrifluoroethylene |
CN105753634A (zh) * | 2015-01-07 | 2016-07-13 | 旭硝子株式会社 | 类共沸组合物以及经纯化的含氟化合物的制造方法 |
WO2020184635A1 (fr) * | 2019-03-11 | 2020-09-17 | ダイキン工業株式会社 | Composition contenant du 1,1,2-trifluoroéthane |
Cited By (1)
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US20210403778A1 (en) * | 2019-03-11 | 2021-12-30 | Daikin Industries, Ltd. | Composition containing 1,1,2-trifluoroethane |
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EP4352031A1 (fr) | 2024-04-17 |
FR3123650B1 (fr) | 2024-06-21 |
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