WO2023095877A1 - 組成物 - Google Patents
組成物 Download PDFInfo
- Publication number
- WO2023095877A1 WO2023095877A1 PCT/JP2022/043564 JP2022043564W WO2023095877A1 WO 2023095877 A1 WO2023095877 A1 WO 2023095877A1 JP 2022043564 W JP2022043564 W JP 2022043564W WO 2023095877 A1 WO2023095877 A1 WO 2023095877A1
- Authority
- WO
- WIPO (PCT)
- Prior art keywords
- mass
- fluoroethylene
- difluoroethylene
- ppm
- composition
- Prior art date
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- 239000000203 mixture Substances 0.000 title claims abstract description 66
- XUCNUKMRBVNAPB-UHFFFAOYSA-N fluoroethene Chemical group FC=C XUCNUKMRBVNAPB-UHFFFAOYSA-N 0.000 claims abstract description 59
- 150000002118 epoxides Chemical class 0.000 claims abstract description 30
- 125000004432 carbon atom Chemical group C* 0.000 claims abstract description 8
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 claims description 29
- 239000001301 oxygen Substances 0.000 claims description 29
- 229910052760 oxygen Inorganic materials 0.000 claims description 29
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 13
- 238000012546 transfer Methods 0.000 claims description 6
- 239000002609 medium Substances 0.000 claims description 4
- 239000003380 propellant Substances 0.000 claims description 4
- 125000001153 fluoro group Chemical group F* 0.000 claims description 3
- 239000004604 Blowing Agent Substances 0.000 claims description 2
- WFLOTYSKFUPZQB-OWOJBTEDSA-N (e)-1,2-difluoroethene Chemical group F\C=C\F WFLOTYSKFUPZQB-OWOJBTEDSA-N 0.000 description 51
- 239000003507 refrigerant Substances 0.000 description 23
- KRHYYFGTRYWZRS-UHFFFAOYSA-N Fluorane Chemical compound F KRHYYFGTRYWZRS-UHFFFAOYSA-N 0.000 description 21
- 229910000040 hydrogen fluoride Inorganic materials 0.000 description 21
- 239000007789 gas Substances 0.000 description 18
- -1 1,2-dichloro-1,2-difluoroethylene 1,2-difluoroethylene Chemical group 0.000 description 12
- 238000004519 manufacturing process Methods 0.000 description 11
- FXRLMCRCYDHQFW-UHFFFAOYSA-N 2,3,3,3-tetrafluoropropene Chemical compound FC(=C)C(F)(F)F FXRLMCRCYDHQFW-UHFFFAOYSA-N 0.000 description 10
- 238000011156 evaluation Methods 0.000 description 10
- 239000012535 impurity Substances 0.000 description 8
- 239000010687 lubricating oil Substances 0.000 description 8
- MIZLGWKEZAPEFJ-UHFFFAOYSA-N 1,1,2-trifluoroethene Chemical group FC=C(F)F MIZLGWKEZAPEFJ-UHFFFAOYSA-N 0.000 description 7
- RWRIWBAIICGTTQ-UHFFFAOYSA-N difluoromethane Chemical compound FCF RWRIWBAIICGTTQ-UHFFFAOYSA-N 0.000 description 6
- 238000000034 method Methods 0.000 description 6
- 239000002253 acid Substances 0.000 description 5
- CDOOAUSHHFGWSA-OWOJBTEDSA-N (e)-1,3,3,3-tetrafluoroprop-1-ene Chemical compound F\C=C\C(F)(F)F CDOOAUSHHFGWSA-OWOJBTEDSA-N 0.000 description 4
- NPNPZTNLOVBDOC-UHFFFAOYSA-N 1,1-difluoroethane Chemical compound CC(F)F NPNPZTNLOVBDOC-UHFFFAOYSA-N 0.000 description 4
- 239000000654 additive Substances 0.000 description 4
- 239000003963 antioxidant agent Substances 0.000 description 4
- 230000000694 effects Effects 0.000 description 4
- WGZYQOSEVSXDNI-UHFFFAOYSA-N 1,1,2-trifluoroethane Chemical compound FCC(F)F WGZYQOSEVSXDNI-UHFFFAOYSA-N 0.000 description 3
- ZMANZCXQSJIPKH-UHFFFAOYSA-N Triethylamine Chemical compound CCN(CC)CC ZMANZCXQSJIPKH-UHFFFAOYSA-N 0.000 description 3
- 230000006866 deterioration Effects 0.000 description 3
- 239000003921 oil Substances 0.000 description 3
- 239000007800 oxidant agent Substances 0.000 description 3
- 229920001515 polyalkylene glycol Polymers 0.000 description 3
- 229920001289 polyvinyl ether Polymers 0.000 description 3
- IWZKICVEHNUQTL-UHFFFAOYSA-M potassium hydrogen phthalate Chemical compound [K+].OC(=O)C1=CC=CC=C1C([O-])=O IWZKICVEHNUQTL-UHFFFAOYSA-M 0.000 description 3
- 238000007086 side reaction Methods 0.000 description 3
- 238000013112 stability test Methods 0.000 description 3
- LVGUZGTVOIAKKC-UHFFFAOYSA-N 1,1,1,2-tetrafluoroethane Chemical compound FCC(F)(F)F LVGUZGTVOIAKKC-UHFFFAOYSA-N 0.000 description 2
- UJPMYEOUBPIPHQ-UHFFFAOYSA-N 1,1,1-trifluoroethane Chemical compound CC(F)(F)F UJPMYEOUBPIPHQ-UHFFFAOYSA-N 0.000 description 2
- WXGNWUVNYMJENI-UHFFFAOYSA-N 1,1,2,2-tetrafluoroethane Chemical compound FC(F)C(F)F WXGNWUVNYMJENI-UHFFFAOYSA-N 0.000 description 2
- BQCIDUSAKPWEOX-UHFFFAOYSA-N 1,1-Difluoroethene Chemical group FC(F)=C BQCIDUSAKPWEOX-UHFFFAOYSA-N 0.000 description 2
- 229940051271 1,1-difluoroethane Drugs 0.000 description 2
- AHFMSNDOYCFEPH-UHFFFAOYSA-N 1,2-difluoroethane Chemical compound FCCF AHFMSNDOYCFEPH-UHFFFAOYSA-N 0.000 description 2
- HILNUELUDBMBJQ-UHFFFAOYSA-N 1-chloro-1,1,2-trifluoroethane Chemical compound FCC(F)(F)Cl HILNUELUDBMBJQ-UHFFFAOYSA-N 0.000 description 2
- UOVSDUIHNGNMBZ-UHFFFAOYSA-N 1-chloro-1,2-difluoroethane Chemical compound FCC(F)Cl UOVSDUIHNGNMBZ-UHFFFAOYSA-N 0.000 description 2
- OHMHBGPWCHTMQE-UHFFFAOYSA-N 2,2-dichloro-1,1,1-trifluoroethane Chemical compound FC(F)(F)C(Cl)Cl OHMHBGPWCHTMQE-UHFFFAOYSA-N 0.000 description 2
- IJGRMHOSHXDMSA-UHFFFAOYSA-N Atomic nitrogen Chemical compound N#N IJGRMHOSHXDMSA-UHFFFAOYSA-N 0.000 description 2
- CURLTUGMZLYLDI-UHFFFAOYSA-N Carbon dioxide Chemical compound O=C=O CURLTUGMZLYLDI-UHFFFAOYSA-N 0.000 description 2
- XTEGARKTQYYJKE-UHFFFAOYSA-M Chlorate Chemical compound [O-]Cl(=O)=O XTEGARKTQYYJKE-UHFFFAOYSA-M 0.000 description 2
- VOPWNXZWBYDODV-UHFFFAOYSA-N Chlorodifluoromethane Chemical compound FC(F)Cl VOPWNXZWBYDODV-UHFFFAOYSA-N 0.000 description 2
- XPDWGBQVDMORPB-UHFFFAOYSA-N Fluoroform Chemical compound FC(F)F XPDWGBQVDMORPB-UHFFFAOYSA-N 0.000 description 2
- ATUOYWHBWRKTHZ-UHFFFAOYSA-N Propane Chemical compound CCC ATUOYWHBWRKTHZ-UHFFFAOYSA-N 0.000 description 2
- 230000003078 antioxidant effect Effects 0.000 description 2
- DKSMCEUSSQTGBK-UHFFFAOYSA-M bromite Chemical compound [O-]Br=O DKSMCEUSSQTGBK-UHFFFAOYSA-M 0.000 description 2
- 230000000052 comparative effect Effects 0.000 description 2
- 150000001875 compounds Chemical class 0.000 description 2
- UHCBBWUQDAVSMS-UHFFFAOYSA-N fluoroethane Chemical compound CCF UHCBBWUQDAVSMS-UHFFFAOYSA-N 0.000 description 2
- NBVXSUQYWXRMNV-UHFFFAOYSA-N fluoromethane Chemical compound FC NBVXSUQYWXRMNV-UHFFFAOYSA-N 0.000 description 2
- 239000004088 foaming agent Substances 0.000 description 2
- JGJLWPGRMCADHB-UHFFFAOYSA-N hypobromite Chemical compound Br[O-] JGJLWPGRMCADHB-UHFFFAOYSA-N 0.000 description 2
- WQYVRQLZKVEZGA-UHFFFAOYSA-N hypochlorite Chemical compound Cl[O-] WQYVRQLZKVEZGA-UHFFFAOYSA-N 0.000 description 2
- NNPPMTNAJDCUHE-UHFFFAOYSA-N isobutane Chemical compound CC(C)C NNPPMTNAJDCUHE-UHFFFAOYSA-N 0.000 description 2
- 239000007791 liquid phase Substances 0.000 description 2
- 239000010721 machine oil Substances 0.000 description 2
- GTLACDSXYULKMZ-UHFFFAOYSA-N pentafluoroethane Chemical compound FC(F)C(F)(F)F GTLACDSXYULKMZ-UHFFFAOYSA-N 0.000 description 2
- 239000012071 phase Substances 0.000 description 2
- 238000006116 polymerization reaction Methods 0.000 description 2
- 229920005862 polyol Polymers 0.000 description 2
- 229920002620 polyvinyl fluoride Polymers 0.000 description 2
- UPVJEODAZWTJKZ-OWOJBTEDSA-N (e)-1,2-dichloro-1,2-difluoroethene Chemical group F\C(Cl)=C(\F)Cl UPVJEODAZWTJKZ-OWOJBTEDSA-N 0.000 description 1
- DMUPYMORYHFFCT-UPHRSURJSA-N (z)-1,2,3,3,3-pentafluoroprop-1-ene Chemical compound F\C=C(/F)C(F)(F)F DMUPYMORYHFFCT-UPHRSURJSA-N 0.000 description 1
- WFLOTYSKFUPZQB-UPHRSURJSA-N (z)-1,2-difluoroethene Chemical group F\C=C/F WFLOTYSKFUPZQB-UPHRSURJSA-N 0.000 description 1
- CJENPNUXCMYXPT-OWOJBTEDSA-N (z)-1-chloro-1,2-difluoroethene Chemical group F\C=C(\F)Cl CJENPNUXCMYXPT-OWOJBTEDSA-N 0.000 description 1
- FWAQVJAOVDYHAF-UHFFFAOYSA-N 1-chloro-1,2,2-trifluoroethane Chemical compound FC(F)C(F)Cl FWAQVJAOVDYHAF-UHFFFAOYSA-N 0.000 description 1
- CYXIKYKBLDZZNW-UHFFFAOYSA-N 2-Chloro-1,1,1-trifluoroethane Chemical compound FC(F)(F)CCl CYXIKYKBLDZZNW-UHFFFAOYSA-N 0.000 description 1
- HTHNTJCVPNKCPZ-UHFFFAOYSA-N 2-chloro-1,1-difluoroethene Chemical group FC(F)=CCl HTHNTJCVPNKCPZ-UHFFFAOYSA-N 0.000 description 1
- FDMFUZHCIRHGRG-UHFFFAOYSA-N 3,3,3-trifluoroprop-1-ene Chemical compound FC(F)(F)C=C FDMFUZHCIRHGRG-UHFFFAOYSA-N 0.000 description 1
- MRBKEAMVRSLQPH-UHFFFAOYSA-N 3-tert-butyl-4-hydroxyanisole Chemical compound COC1=CC=C(O)C(C(C)(C)C)=C1 MRBKEAMVRSLQPH-UHFFFAOYSA-N 0.000 description 1
- XESZUVZBAMCAEJ-UHFFFAOYSA-N 4-tert-butylcatechol Chemical compound CC(C)(C)C1=CC=C(O)C(O)=C1 XESZUVZBAMCAEJ-UHFFFAOYSA-N 0.000 description 1
- WKBOTKDWSSQWDR-UHFFFAOYSA-N Bromine atom Chemical class [Br] WKBOTKDWSSQWDR-UHFFFAOYSA-N 0.000 description 1
- NLZUEZXRPGMBCV-UHFFFAOYSA-N Butylhydroxytoluene Chemical compound CC1=CC(C(C)(C)C)=C(O)C(C(C)(C)C)=C1 NLZUEZXRPGMBCV-UHFFFAOYSA-N 0.000 description 1
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 description 1
- VGGSQFUCUMXWEO-UHFFFAOYSA-N Ethene Chemical compound C=C VGGSQFUCUMXWEO-UHFFFAOYSA-N 0.000 description 1
- 239000005977 Ethylene Substances 0.000 description 1
- XYLMUPLGERFSHI-UHFFFAOYSA-N alpha-Methylstyrene Chemical compound CC(=C)C1=CC=CC=C1 XYLMUPLGERFSHI-UHFFFAOYSA-N 0.000 description 1
- HSFWRNGVRCDJHI-UHFFFAOYSA-N alpha-acetylene Natural products C#C HSFWRNGVRCDJHI-UHFFFAOYSA-N 0.000 description 1
- 238000004458 analytical method Methods 0.000 description 1
- 238000007664 blowing Methods 0.000 description 1
- 238000009835 boiling Methods 0.000 description 1
- SXDBWCPKPHAZSM-UHFFFAOYSA-M bromate Inorganic materials [O-]Br(=O)=O SXDBWCPKPHAZSM-UHFFFAOYSA-M 0.000 description 1
- SXDBWCPKPHAZSM-UHFFFAOYSA-N bromic acid Chemical compound OBr(=O)=O SXDBWCPKPHAZSM-UHFFFAOYSA-N 0.000 description 1
- 239000001273 butane Substances 0.000 description 1
- 235000010354 butylated hydroxytoluene Nutrition 0.000 description 1
- 229910052799 carbon Inorganic materials 0.000 description 1
- 239000001569 carbon dioxide Substances 0.000 description 1
- 229910002092 carbon dioxide Inorganic materials 0.000 description 1
- 238000004517 catalytic hydrocracking Methods 0.000 description 1
- 150000001805 chlorine compounds Chemical class 0.000 description 1
- 229910001919 chlorite Inorganic materials 0.000 description 1
- 229910052619 chlorite group Inorganic materials 0.000 description 1
- QBWCMBCROVPCKQ-UHFFFAOYSA-N chlorous acid Chemical compound OCl=O QBWCMBCROVPCKQ-UHFFFAOYSA-N 0.000 description 1
- 238000011109 contamination Methods 0.000 description 1
- 238000001816 cooling Methods 0.000 description 1
- 238000005260 corrosion Methods 0.000 description 1
- 230000007797 corrosion Effects 0.000 description 1
- 238000000354 decomposition reaction Methods 0.000 description 1
- 238000007033 dehydrochlorination reaction Methods 0.000 description 1
- 238000005796 dehydrofluorination reaction Methods 0.000 description 1
- 125000002534 ethynyl group Chemical group [H]C#C* 0.000 description 1
- 238000004817 gas chromatography Methods 0.000 description 1
- 239000011521 glass Substances 0.000 description 1
- 238000005984 hydrogenation reaction Methods 0.000 description 1
- 239000003112 inhibitor Substances 0.000 description 1
- 238000004255 ion exchange chromatography Methods 0.000 description 1
- 239000001282 iso-butane Substances 0.000 description 1
- 239000007788 liquid Substances 0.000 description 1
- IJDNQMDRQITEOD-UHFFFAOYSA-N n-butane Chemical compound CCCC IJDNQMDRQITEOD-UHFFFAOYSA-N 0.000 description 1
- OFBQJSOFQDEBGM-UHFFFAOYSA-N n-pentane Natural products CCCCC OFBQJSOFQDEBGM-UHFFFAOYSA-N 0.000 description 1
- 229910052757 nitrogen Inorganic materials 0.000 description 1
- 230000008520 organization Effects 0.000 description 1
- 230000000704 physical effect Effects 0.000 description 1
- 239000001294 propane Substances 0.000 description 1
- QQONPFPTGQHPMA-UHFFFAOYSA-N propylene Natural products CC=C QQONPFPTGQHPMA-UHFFFAOYSA-N 0.000 description 1
- 125000004805 propylene group Chemical group [H]C([H])([H])C([H])([*:1])C([H])([H])[*:2] 0.000 description 1
- 239000002516 radical scavenger Substances 0.000 description 1
- 238000011160 research Methods 0.000 description 1
- 238000007789 sealing Methods 0.000 description 1
- 239000007787 solid Substances 0.000 description 1
- 238000012430 stability testing Methods 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
- 238000004448 titration Methods 0.000 description 1
- VPAYJEUHKVESSD-UHFFFAOYSA-N trifluoroiodomethane Chemical compound FC(F)(F)I VPAYJEUHKVESSD-UHFFFAOYSA-N 0.000 description 1
Classifications
-
- C—CHEMISTRY; METALLURGY
- C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
- C09K—MATERIALS FOR MISCELLANEOUS APPLICATIONS, NOT PROVIDED FOR ELSEWHERE
- C09K3/00—Materials not provided for elsewhere
- C09K3/30—Materials not provided for elsewhere for aerosols
-
- C—CHEMISTRY; METALLURGY
- C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
- C09K—MATERIALS FOR MISCELLANEOUS APPLICATIONS, NOT PROVIDED FOR ELSEWHERE
- C09K3/00—Materials not provided for elsewhere
-
- C—CHEMISTRY; METALLURGY
- C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
- C09K—MATERIALS FOR MISCELLANEOUS APPLICATIONS, NOT PROVIDED FOR ELSEWHERE
- C09K5/00—Heat-transfer, heat-exchange or heat-storage materials, e.g. refrigerants; Materials for the production of heat or cold by chemical reactions other than by combustion
- C09K5/02—Materials undergoing a change of physical state when used
- C09K5/04—Materials undergoing a change of physical state when used the change of state being from liquid to vapour or vice versa
-
- C—CHEMISTRY; METALLURGY
- C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
- C09K—MATERIALS FOR MISCELLANEOUS APPLICATIONS, NOT PROVIDED FOR ELSEWHERE
- C09K5/00—Heat-transfer, heat-exchange or heat-storage materials, e.g. refrigerants; Materials for the production of heat or cold by chemical reactions other than by combustion
- C09K5/02—Materials undergoing a change of physical state when used
- C09K5/04—Materials undergoing a change of physical state when used the change of state being from liquid to vapour or vice versa
- C09K5/041—Materials undergoing a change of physical state when used the change of state being from liquid to vapour or vice versa for compression-type refrigeration systems
- C09K5/044—Materials undergoing a change of physical state when used the change of state being from liquid to vapour or vice versa for compression-type refrigeration systems comprising halogenated compounds
- C09K5/045—Materials undergoing a change of physical state when used the change of state being from liquid to vapour or vice versa for compression-type refrigeration systems comprising halogenated compounds containing only fluorine as halogen
-
- C—CHEMISTRY; METALLURGY
- C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
- C09K—MATERIALS FOR MISCELLANEOUS APPLICATIONS, NOT PROVIDED FOR ELSEWHERE
- C09K2205/00—Aspects relating to compounds used in compression type refrigeration systems
- C09K2205/10—Components
- C09K2205/11—Ethers
- C09K2205/114—Cyclic ethers
-
- C—CHEMISTRY; METALLURGY
- C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
- C09K—MATERIALS FOR MISCELLANEOUS APPLICATIONS, NOT PROVIDED FOR ELSEWHERE
- C09K2205/00—Aspects relating to compounds used in compression type refrigeration systems
- C09K2205/10—Components
- C09K2205/12—Hydrocarbons
- C09K2205/126—Unsaturated fluorinated hydrocarbons
-
- C—CHEMISTRY; METALLURGY
- C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
- C09K—MATERIALS FOR MISCELLANEOUS APPLICATIONS, NOT PROVIDED FOR ELSEWHERE
- C09K2205/00—Aspects relating to compounds used in compression type refrigeration systems
- C09K2205/24—Only one single fluoro component present
Definitions
- compositions relate to compositions.
- Fluoroethylene is used for a variety of purposes, including as a heat transfer medium, and its demand is expected to continue to grow.
- fluoroethylene is contaminated with oxygen, it may gradually decompose to produce hydrogen fluoride.
- the generated hydrogen fluoride may cause deterioration of the refrigerating machine oil and eventually cause corrosion or breakage of equipment or containers.
- measures have been taken to suppress the contamination of oxygen and to add an acid scavenger to the refrigerating machine oil to be added to the fluoroethylene.
- Patent Document 1 discloses a fluoroethylene-containing composition containing a polymerization inhibitor. Further, Patent Document 2 discloses a mode in which an antioxidant is contained in refrigerator oil.
- an object of the present disclosure is to provide a composition in which the production of hydrogen fluoride from fluoroethylene is suppressed.
- the present inventors found that the production of hydrogen fluoride can be suppressed by coexisting an epoxide having a carbon number of 6 or less in fluoroethylene.
- the inventors of the present invention conducted further studies based on such knowledge, and completed the present disclosure.
- Section 1 A composition comprising fluoroethylene and an epoxide having 6 or less carbon atoms.
- Section 2. Item 2. The composition according to item 1, wherein the content of the epoxide is 1 to 50000 mass ppm based on the mass of the fluoroethylene.
- Item 3. Item 3. The composition according to Item 1 or 2, wherein the fluoroethylene has two or more fluorine atoms.
- Section 4. Item 4. The composition according to any one of items 1 to 3, further comprising oxygen, wherein the oxygen content is 1 to 5000 mole ppm based on the number of moles of the fluoroethylene.
- Item 5. Item 5.
- composition according to any one of items 1 to 4, further comprising water, and the content of water is 0.1 to 100 ppm by mass based on the mass of the fluoroethylene.
- Item 6. The composition according to any one of Items 1 to 5, which is a heat transfer medium, blowing agent or propellant.
- composition of the present disclosure suppresses the production of hydrogen fluoride.
- composition of the present disclosure contains fluoroethylene and an epoxide having 6 or less carbon atoms.
- the fluoroethylene contained in the composition of the present disclosure is not particularly limited.
- the number of fluorine atoms in fluoroethylene is preferably 2 or more, more preferably 2 or 3, and particularly preferably 2.
- Fluoroethylene is preferably one or more selected from the group consisting of 1,2-difluoroethylene and trifluoroethylene, and is preferably 1,2-difluoroethylene, from the viewpoint that the stability is more likely to be improved. More preferred.
- 1,2-difluoroethylene has two isomers (E-isomer and Z-isomer). Specifically, trans-1,2-difluoroethylene (HFO-1132(E)) and cis There are two types of -1,2-difluoroethylene (HFO-1132(Z)).
- the fluoroethylene when the fluoroethylene is 1,2-difluoroethylene, it may be either one isomer or a mixture of both isomers.
- the fluoroethylene when the fluoroethylene is 1,2-difluoroethylene, the 1,2-difluoroethylene is trans-1,2-difluoroethylene (HFO-1132(E)) and/or cis- -1,2-difluoroethylene (HFO-1132(Z)).
- 1,2-difluoroethylene is preferably the E form.
- 1,2-difluoroethylene preferably contains 50% by mass or more of E-isomer, more preferably 55% by mass or more, further preferably 60% by mass or more, and 70% by mass or more. Especially preferred.
- 1,2-difluoroethylene or "HFO-1132" refers to E-form 1,2-difluoroethylene, Z-form 1,2-difluoroethylene, and E-form and Z-form of 1,2-difluoroethylene mixtures.
- 1,2-difluoroethylene of the E-isomer alone is expressed as “1,2-difluoroethylene (E)” or “HFO-1132 (E)”
- the Z-isomer alone 1,2-difluoroethylene is denoted as “1,2-difluoroethylene (Z)” or “HFO-1132 (Z)”
- a mixture of E- and Z-form 1,2-difluoroethylene is denoted as “1, 2-difluoroethylene (E, Z)” or “HFO-1132 (E, Z)”.
- the method for producing fluoroethylene is not particularly limited, and for example, fluoroethylene can be produced by a known production method.
- fluoroethylene contained in the composition of the present disclosure is 1,2-difluoroethylene
- the dehydrofluorination reaction of 1,1,2-trifluoroethane, 1,2-dichloro-1,2-difluoroethylene 1,2-difluoroethylene can be produced by a hydrogenation reaction, a method of hydrocracking 1,2-dichlorodifluoroethylene, or a dehydrochlorination reaction of 1-chloro-1,2-difluoroethane. .
- the epoxide contained in the composition of the present disclosure has 6 or less carbon atoms, preferably 3 or less carbon atoms, more preferably 2 carbon atoms.
- the content of the epoxide is preferably 1 ppm by mass or more, more preferably 5 ppm by mass or more, and even more preferably 50 ppm by mass or more, based on the mass of fluoroethylene.
- the content of the epoxide is preferably 50000 ppm by mass or less, more preferably 5000 ppm by mass or less, and even more preferably 500 ppm by mass or less based on the mass of fluoroethylene.
- the epoxide content By setting the epoxide content to 50000 ppm by mass or less based on the mass of fluoroethylene, deterioration of the composition due to side reactions caused by the epoxide can be suppressed and changes in the physical properties of fluoroethylene can be prevented.
- the content of fluoroethylene and its epoxide contained in the composition of the present disclosure can be specified by a known analysis method such as gas chromatography.
- the method for producing the fluoroethylene epoxide contained in the composition of the present disclosure is not particularly limited, and known methods can be widely adopted. For example, it can be obtained by contacting the fluoroethylene with an oxidizing agent in a liquid phase or a gas phase.
- oxidizing agent a wide range of known oxidizing agents used in the relevant technical field can be used, and there is no particular limitation. Specific examples include chlorine compounds such as chlorate, chlorite and hypochlorite; bromine compounds such as bromate, bromite and hypobromite; and oxygen.
- the oxygen content is preferably 1 ppm by mole or more, more preferably 3 ppm by mole or more, and 5 ppm by mole based on the number of moles of fluoroethylene. It is more preferable that it is above.
- the content of oxygen contained in the composition of the present disclosure is preferably 5000 ppm by mole or less, more preferably 3000 ppm by mole or less, and 1000 ppm by mole or less, based on the number of moles of fluoroethylene. is more preferable.
- the oxygen content is preferably 5000 mol ppm or less based on the number of moles of fluoroethylene, there is an advantage that undesirable side reactions other than the generation of epoxide, such as decomposition reactions and polymerization reactions, can be suppressed.
- the oxygen content in the composition of the present disclosure is obtained by measuring the oxygen content in the gas phase with a commercially available gas chromatograph or oxygen concentration meter, and converting the oxygen content in the liquid phase from the measured value. can quantify the oxygen content.
- the water content is preferably 0.1 ppm by mass or more, more preferably 1 ppm by mass or more, based on the mass of fluoroethylene, and 2 mass ppm ppm or more is more preferable.
- the content of water contained in the composition of the present disclosure is preferably 100 mass ppm or less, more preferably 50 mass ppm or less, and 20 mass ppm or less based on the mass of fluoroethylene. It is even more preferable to have By setting the water content to 100 ppm by mass or less based on the mass of fluoroethylene, it is possible to suppress the generation of acid or solids due to side reactions or the like, and to ensure the stability of the composition.
- the water content in the composition of the present disclosure can be measured by a known method such as titration using a commercially available Karl Fischer moisture analyzer.
- the epoxide having 6 or less carbon atoms captures hydrogen fluoride, it is possible to suppress the production of hydrogen fluoride.
- the epoxide contained in the composition of the present disclosure is the epoxide of fluoroethylene contained in the composition of the present disclosure, fluoroethylene and epoxide are similar in structure. The boiling point is close to , and the handling of the composition is excellent.
- composition of the present disclosure may contain substances other than those mentioned above within a range that does not impair its effect or purpose.
- impurities include, for example, when fluoroethylene is 1,2-difluoroethylene, fluoroethylene, trifluoroethylene, 1,1,1-trifluoroethane, propylene, acetylene, difluoromethane, trifluoromethane, fluoromethane, 1 , 1,2-trifluoroethylene (HFO-1123), 1,1-difluoroethane (HFC-152a), fluoroethane (HFC-161), 1,1,2-trifluoroethane (HFC-143), 2- Chloro-1,1,1-trifluoroethane (HCFC-133b), 1-chloro-1,1,2-trifluoroethane (HCFC-133), 1,1-dichloro-2,2,2-trifluoro Ethane (HCFC
- the content is not particularly limited.
- the impurities may be 0.1 ppm by mass or more based on the mass of fluoroethylene. Moreover, it is preferable that the impurities are contained in an amount of 10000 ppm by mass or less.
- the composition of the present disclosure may contain other components other than fluoroethylene as components having refrigerant functions.
- Such components include 2,3,3,3-tetrafluoropropene (HFO-1234yf), 1,3,3,3-tetrafluoropropene (HFO-1234ze), 1,1,2-trifluoroethylene (HFO- 1123), 1,1-difluoroethylene (HFO-1132a), 1,1,1,2-tetrafluoroethane (HFC-134a), 1,1,1-trifluoroethane (HFC-143a), 1,1 - difluoroethane (HFC-152a), difluoromethane (HFC-32), iodotrifluoromethane, carbon dioxide, propane, butane, and isobutane.
- the composition of the present disclosure contains these components, the total amount of the components having a refrigerant function is 100% by mass, and the total content of the other components is 3 to 97% by mass. is preferred, and 30 to 90%
- composition of the present disclosure when using the composition of the present disclosure as a heat transfer medium, it may further contain lubricating oil within a range that does not impair the effects of the composition of the present disclosure.
- lubricating oil is not particularly limited, and for example, a wide range of known lubricating oils used for refrigerants and the like can be employed.
- the refrigerant includes at least a compound with a refrigerant number (ASHRAE number) starting with R, which indicates the type of refrigerant, defined by ISO817 (International Organization for Standardization), and furthermore, the refrigerant number is still Even if they are not attached, those having properties as refrigerants equivalent to them shall be included.
- Refrigerants are roughly classified into “fluorocarbon compounds” and “non-fluorocarbon compounds” in terms of compound structure.
- “Fluorocarbon compounds” shall include chlorofluorocarbons (CFCs), hydrochlorofluorocarbons (HCFCs) and hydrofluorocarbons (HFCs).
- the refrigerant content in the composition of the present disclosure is preferably 50% by mass or more.
- the upper limit of the refrigerant content in the composition is not particularly limited, and can be, for example, 100% by mass.
- the content of fluoroethylene in the refrigerant contained in the composition of the present disclosure is preferably 3 to 100% by mass of fluoroethylene in 100% by mass of the refrigerant, and more preferably 5 to 70% by mass. Preferably, it is more preferably 10 to 50% by mass.
- Specific lubricating oils include one or more selected from the group consisting of polyalkylene glycols, polyol esters and polyvinyl ethers.
- polyalkylene glycol PAG
- polyol esters PAG
- polyol ester POE
- PVE polyvinyl ether
- PVE polyvinyl ether
- the lubricating oil preferably contains 1 to 50% by mass, more preferably 10 to 40% by mass, when the total amount of the composition of the present disclosure is 100% by mass. However, it is not particularly limited to this range because it varies depending on the specifications of the oil tank of the refrigerator.
- composition of the present disclosure may contain the above-described antioxidants for lubricating oils within a range that does not impair its effect and purpose.
- antioxidants include 2,6-di-tert-butyl-p-cresol, 4-hydroxy-3-t-butylanisole, triethylamine, 4-t-butylpyrocatechol, and ⁇ -methyl Styrene and potassium hydrogen phthalate can be exemplified. These may be used singly or as a mixture of two or more.
- the content of the antioxidant may be appropriately set according to the amount of lubricating oil to be used.
- composition of the present disclosure can further contain other additives in addition to the above.
- the content of the other additives is 5% by mass or less, preferably 1% by mass or less, more preferably 1% by mass or less, based on the mass of the component having a refrigerant function. It can be 0.1% by mass or less, particularly preferably 0.05% by mass or less.
- a fluoroethylene composition can be prepared by mixing fluoroethylene, its epoxide, and water in a predetermined mixing ratio.
- the aforementioned lubricating oil and/or other additives may be blended as appropriate.
- blowing air or oxygen into the composition the amount of oxygen in the composition can be adjusted within a desired range.
- the above-mentioned impurities may be present in the fluoroethylene or its epoxide. These impurities may be removed in advance by an appropriate method before preparing the composition, or the impurities may be removed. It can also be used in the composition as it is without being removed.
- composition of the present disclosure can be used for various applications, and can be used as a heat transfer medium, foaming agent, propellant, and the like.
- a heat transfer medium, foaming agent, propellant, etc. suppresses the generation of hydrogen fluoride and deteriorates little, so that the quality is maintained for a long period of time.
- Stability testing was performed as follows. 1,2-difluoroethylene was added in an amount of 8.9 mmol to a glass tube (ID 8 mm ⁇ OD 12 mm ⁇ L 300 mm) one side of which had been heat-sealed. Predetermined amounts of epoxide of 1,2-difluoroethylene, oxygen and water were added in advance. After that, the tube was sealed by heat-sealing. This tube was allowed to stand in a constant temperature bath under an atmosphere of 175° C. and kept in this state for two weeks. After that, the tube was taken out from the constant temperature bath and cooled, and the stability of fluoroethylene was evaluated by checking the appearance and analyzing the acid content in the gas inside the tube.
- the acid content in the gas was analyzed by the following method. After the cooling, the tube was completely solidified with liquid nitrogen to completely solidify the gas remaining in the tube. The tube was then opened and slowly thawed to collect the gas in a Tedlar bag. 5 g of pure water was poured into this Tedlar bag, and the acid content was extracted into the pure water while bringing the bag into good contact with the recovered gas. The extract was detected by ion chromatography to measure the content (mass ppm) of fluoride ions (F ⁇ ), and the amount of fluoride ions obtained was taken as the amount of hydrogen fluoride produced.
- Example 1 The above fluoroethylene stability test was carried out by adding 125 mass ppm of 1,2-difluoroethylene epoxide to 1,2-difluoroethylene and 100 mol ppm of oxygen. When the tube was removed from the constant temperature bath and the gas was analyzed, no generation of hydrogen fluoride was observed.
- Example 2 Evaluation was carried out in the same manner as in Example 1, except that 125 mass ppm of epoxide of 1,2-difluoroethylene and 500 mol ppm of oxygen were previously added to 1,2-difluoroethylene. When the tube was taken out from the constant temperature bath and the gas was analyzed, it was found that 35 mass ppm of hydrogen fluoride was generated with respect to 1,2-difluoroethylene.
- Example 3 Evaluation was carried out in the same manner as in Example 1, except that 70 mass ppm of epoxide of 1,2-difluoroethylene and 500 mol ppm of oxygen were previously added to 1,2-difluoroethylene. When the tube was taken out from the constant temperature bath and the gas was analyzed, it was found that 49 mass ppm of hydrogen fluoride was generated with respect to 1,2-difluoroethylene.
- Example 4 Evaluation was carried out in the same manner as in Example 1, except that 125 mass ppm of epoxide of 1,2-difluoroethylene, 500 mass ppm of oxygen, and 200 mass ppm of water were previously added to 1,2-difluoroethylene. When the tube was removed from the constant temperature bath and the gas was analyzed, it was found that 56 ppm by mass of hydrogen fluoride was produced relative to 1,2-difluoroethylene.
- Example 5 1,1,2-trifluoroethylene was used instead of 1,2-difluoroethylene, and the epoxide of 1,1,2-trifluoroethylene was added to 1,1,2-trifluoroethylene at 50 mass ppm and oxygen at 100. Evaluation was carried out in the same manner as in Example 1, except that mol ppm was added in advance. When the tube was removed from the constant temperature bath and the gas was analyzed, it was found that 5 mass ppm of hydrogen fluoride was generated with respect to 1,1,2-trifluoroethylene.
- Example 6 Evaluation was carried out in the same manner as in Example 1, except that 125 mass ppm of epoxide of 1,2-difluoroethylene, 100 mass ppm of potassium hydrogen phthalate, and 500 mol ppm of oxygen were previously added to 1,2-difluoroethylene. . When the tube was removed from the constant temperature bath and the gas was analyzed, it was found that 32 ppm by mass of hydrogen fluoride was produced relative to 1,2-difluoroethylene.
- Example 7 Instead of 1,2-difluoroethylene, a mixed refrigerant consisting of 23% by mass of 1,2-difluoroethylene and 77% by mass of 2,3,3,3-tetrafluoropropene is used, and epoxide of 1,2-difluoroethylene is mixed. Evaluation was performed in the same manner as in Example 1, except that 30 ppm by mass and 500 mol ppm of oxygen were previously added to the refrigerant. When the tube was removed from the constant temperature bath and the gas was analyzed, it was found that 160 ppm by mass of hydrogen fluoride was generated in the mixed refrigerant of 1,2-difluoroethylene and 2,3,3,3-tetrafluoropropene. have understood.
- Example 8 Instead of 1,2-difluoroethylene, a mixed refrigerant consisting of 23% by mass of 1,2-difluoroethylene and 77% by mass of 2,3,3,3-tetrafluoropropene is used, and epoxide of 1,2-difluoroethylene is mixed. Evaluation was carried out in the same manner as in Example 1, except that 30 ppm by mass of the refrigerant, 100 ppm by mass of potassium hydrogen phthalate and 500 mol ppm of oxygen were previously added to the mixed refrigerant.
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Abstract
Description
項1.
フルオロエチレンと、炭素数6以下のエポキサイドとを含む、組成物。
項2.
前記エポキサイドの含有量は、前記フルオロエチレンの質量を基準として1~50000質量ppmである、項1に記載の組成物。
項3.
前記フルオロエチレンがフッ素原子を2個以上有する、項1又は2に記載の組成物。
項4.
さらに酸素を含み、酸素の含有量が、前記フルオロエチレンのモル数を基準として1~5000モルppmである、項1~3の何れかに記載の組成物。
項5.
さらに水を含み、水の含有量が、前記フルオロエチレンの質量を基準として0.1~100質量ppmである、項1~4の何れかに記載の組成物。
項6.
熱移動媒体、発泡剤又は噴射剤である、項1~5の何れかに記載の組成物。
(フルオロエチレンの安定性試験)
以下のように安定性試験を行った。片側を溶封済みのガラス製チューブ(ID8mmΦ× OD12mmΦ×L 300mm) に、1,2-ジフルオロエチレンの添加量が8.9mmolとなるように加えた。1,2-ジフルオロエチレンのエポキサイド、酸素、及び水はあらかじめ所定量加えておいた。その後チューブを溶封により密閉状態とした。このチューブを175℃の雰囲気下の恒温槽内に静置させ、この状態で2週間保持した。その後、恒温槽からチューブを取り出して冷却し、外観を確認するとともにチューブ内のガス中の酸分の分析を行うことで、フルオロエチレンの安定性を評価した。
1,2-ジフルオロエチレンのエポキサイドを1,2-ジフルオロエチレンに対し125質量ppm、酸素100モルppmを加えることにより、上記のフルオロエチレンの安定性試験を実施した。恒温槽からチューブを取り出してガスの分析を行ったところ、フッ化水素の生成は見られなかった。
1,2-ジフルオロエチレンのエポキサイドを1,2-ジフルオロエチレンに対し125質量ppm、酸素500モルppmをあらかじめ加えた他は実施例1と同様にして評価をおこなった。恒温槽からチューブを取り出してガスの分析を行ったところ、フッ化水素は1,2-ジフルオロエチレンに対し35質量ppm生成していることがわかった。
1,2-ジフルオロエチレンのエポキサイドを1,2-ジフルオロエチレンに対し70質量ppm、酸素500モルppmをあらかじめ加えた他は実施例1と同様にして評価をおこなった。恒温槽からチューブを取り出してガスの分析を行ったところ、フッ化水素は1,2-ジフルオロエチレンに対し49質量ppm生成していることがわかった。
1,2-ジフルオロエチレンのエポキサイドを加えず、1,2-ジフルオロエチレンに対し酸素500モルppmのみをあらかじめ加えた他は実施例1と同様にして評価をおこなった。恒温槽からチューブを取り出してガスの分析を行ったところ、フッ化水素は1,2-ジフルオロエチレンに対し67質量ppm生成していることがわかった。
1,2-ジフルオロエチレンのエポキサイドを1,2-ジフルオロエチレンに対し125質量ppm、酸素500モルppm、水200質量ppmをあらかじめ加えた他は実施例1と同様にして評価をおこなった。恒温槽からチューブを取り出してガスの分析を行ったところ、フッ化水素は1,2-ジフルオロエチレンに対し56質量ppm生成していることがわかった。
1,2-ジフルオロエチレンの代わりに1,1,2-トリフルオロエチレンを用い、1,1,2-トリフルオロエチレンのエポキサイドを1,1,2-トリフルオロエチレンに対し50質量ppm、酸素100モルppmをあらかじめ加えた他は実施例1と同様にして評価をおこなった。恒温槽からチューブを取り出してガスの分析を行ったところ、フッ化水素は1,1,2-トリフルオロエチレンに対し5質量ppm生成していることがわかった。
1,2-ジフルオロエチレンの代わりに1,2-ジフルオロエチレン23質量%及び2,3,3,3-テトラフルオロプロペン77質量%からなる混合冷媒を用い、酸素500モルppmをあらかじめ加えた他は実施例1と同様にして評価をおこなった。恒温槽からチューブを取り出してガスの分析を行ったところ、フッ化水素は1,2-ジフルオロエチレンと2,3,3,3-テトラフルオロプロペン混合冷媒に対し200質量ppm生成していることがわかった。
1,2-ジフルオロエチレンのエポキサイドを1,2-ジフルオロエチレンに対し125質量ppm、フタル酸水素カリウム100質量ppm、酸素500モルppmをあらかじめ加えた他は実施例1と同様にして評価をおこなった。恒温槽からチューブを取り出してガスの分析を行ったところ、フッ化水素は1,2-ジフルオロエチレンに対し32質量ppm生成していることがわかった。
1,2-ジフルオロエチレンの代わりに1、2-ジフルオロエチレン23質量%及び2,3,3,3-テトラフルオロプロペン77質量%からなる混合冷媒を用い、1,2-ジフルオロエチレンのエポキサイドを混合冷媒に対し30質量ppm、酸素500モルppmをあらかじめ加えた他は実施例1と同様にして評価をおこなった。恒温槽からチューブを取り出してガスの分析を行ったところ、フッ化水素は1,2-ジフルオロエチレンと2,3,3,3-テトラフルオロプロペン混合冷媒に対し160質量ppm生成していることがわかった。
1,2-ジフルオロエチレンの代わりに1、2-ジフルオロエチレン23質量%及び2,3,3,3-テトラフルオロプロペン77質量%からなる混合冷媒を用い、1,2-ジフルオロエチレンのエポキサイドを混合冷媒に対し30質量ppm、フタル酸水素カリウムを混合冷媒に対し100質量ppm、酸素500モルppmをあらかじめ加えた他は実施例1と同様にして評価をおこなった。恒温槽からチューブを取り出してガスの分析を行ったところ、フッ化水素は1,2-ジフルオロエチレンと2,3,3,3-テトラフルオロプロペン混合冷媒に対し5質量ppm生成していることがわかった。
Claims (6)
- フルオロエチレンと、炭素数6以下のエポキサイドとを含む、組成物。
- 前記エポキサイドの含有量は、前記フルオロエチレンの質量を基準として1~50000質量ppmである、請求項1に記載の組成物。
- 前記フルオロエチレンがフッ素原子を2個以上有する、請求項1又は2に記載の組成物。
- 酸素の含有量が、前記フルオロエチレンの質量を基準として1~5000モルppmである、請求項1~3の何れかに記載の組成物。
- 水の含有量が、前記フルオロエチレンの質量を基準として0.1~100質量ppmである、請求項1~4の何れか一項に記載の組成物。
- 熱移動媒体、発泡剤又は噴射剤である、請求項1~5の何れか一項に記載の組成物。
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