WO2022138675A1 - 不飽和クロロフルオロカーボンの製造方法、及び組成物 - Google Patents
不飽和クロロフルオロカーボンの製造方法、及び組成物 Download PDFInfo
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- WO2022138675A1 WO2022138675A1 PCT/JP2021/047427 JP2021047427W WO2022138675A1 WO 2022138675 A1 WO2022138675 A1 WO 2022138675A1 JP 2021047427 W JP2021047427 W JP 2021047427W WO 2022138675 A1 WO2022138675 A1 WO 2022138675A1
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- Prior art keywords
- isomer
- represented
- dichlorotrifluoropropane
- geometric
- trifluoropropene
- Prior art date
Links
- 239000000203 mixture Substances 0.000 title claims abstract description 31
- 238000004519 manufacturing process Methods 0.000 title claims description 17
- KYKAJFCTULSVSH-UHFFFAOYSA-N chloro(fluoro)methane Chemical class F[C]Cl KYKAJFCTULSVSH-UHFFFAOYSA-N 0.000 title 1
- 238000000034 method Methods 0.000 claims abstract description 41
- DCWQLZUJMHEDKD-UHFFFAOYSA-N 2,2-dichloro-1,1,1-trifluoropropane Chemical compound CC(Cl)(Cl)C(F)(F)F DCWQLZUJMHEDKD-UHFFFAOYSA-N 0.000 claims abstract description 36
- 150000001875 compounds Chemical class 0.000 claims abstract description 35
- VEXZGXHMUGYJMC-UHFFFAOYSA-N Hydrochloric acid Chemical compound Cl VEXZGXHMUGYJMC-UHFFFAOYSA-N 0.000 claims abstract description 28
- 239000007789 gas Substances 0.000 claims abstract description 28
- IXCSERBJSXMMFS-UHFFFAOYSA-N hydrogen chloride Substances Cl.Cl IXCSERBJSXMMFS-UHFFFAOYSA-N 0.000 claims abstract description 27
- 229910000041 hydrogen chloride Inorganic materials 0.000 claims abstract description 27
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 claims description 50
- 239000002994 raw material Substances 0.000 claims description 41
- 229910052731 fluorine Inorganic materials 0.000 claims description 18
- 125000001153 fluoro group Chemical group F* 0.000 claims description 18
- 125000004435 hydrogen atom Chemical group [H]* 0.000 claims description 18
- LDTMPQQAWUMPKS-OWOJBTEDSA-N (e)-1-chloro-3,3,3-trifluoroprop-1-ene Chemical compound FC(F)(F)\C=C\Cl LDTMPQQAWUMPKS-OWOJBTEDSA-N 0.000 claims description 15
- 239000003054 catalyst Substances 0.000 claims description 15
- AZPXOJJPLYOXGK-UHFFFAOYSA-N 1,1-dichloro-2,3,3-trifluoropropane Chemical group FC(F)C(F)C(Cl)Cl AZPXOJJPLYOXGK-UHFFFAOYSA-N 0.000 claims description 11
- PLTIOZOVDUUXDQ-UHFFFAOYSA-N 3,3-dichloro-1,1,1-trifluoropropane Chemical group FC(F)(F)CC(Cl)Cl PLTIOZOVDUUXDQ-UHFFFAOYSA-N 0.000 claims description 10
- NSSFAXVPBAJIEY-UHFFFAOYSA-N 2,3-dichloro-1,1,2-trifluoropropane Chemical compound FC(F)C(F)(Cl)CCl NSSFAXVPBAJIEY-UHFFFAOYSA-N 0.000 claims description 9
- 239000000945 filler Substances 0.000 claims description 9
- USCSECLOSDIOTA-UHFFFAOYSA-N 1-chloro-2,3,3-trifluoroprop-1-ene Chemical compound FC(F)C(F)=CCl USCSECLOSDIOTA-UHFFFAOYSA-N 0.000 claims description 7
- DYLIWHYUXAJDOJ-OWOJBTEDSA-N (e)-4-(6-aminopurin-9-yl)but-2-en-1-ol Chemical compound NC1=NC=NC2=C1N=CN2C\C=C\CO DYLIWHYUXAJDOJ-OWOJBTEDSA-N 0.000 claims description 6
- LDTMPQQAWUMPKS-UPHRSURJSA-N (z)-1-chloro-3,3,3-trifluoroprop-1-ene Chemical compound FC(F)(F)\C=C/Cl LDTMPQQAWUMPKS-UPHRSURJSA-N 0.000 claims description 6
- USCSECLOSDIOTA-OWOJBTEDSA-N (e)-1-chloro-2,3,3-trifluoroprop-1-ene Chemical compound FC(F)C(\F)=C/Cl USCSECLOSDIOTA-OWOJBTEDSA-N 0.000 claims description 5
- USCSECLOSDIOTA-UPHRSURJSA-N (Z)-1-chloro-2,3,3-trifluoroprop-1-ene Chemical compound Cl\C=C(\C(F)F)/F USCSECLOSDIOTA-UPHRSURJSA-N 0.000 claims description 4
- 238000006317 isomerization reaction Methods 0.000 abstract description 62
- 238000006243 chemical reaction Methods 0.000 description 70
- 239000000047 product Substances 0.000 description 20
- 238000004817 gas chromatography Methods 0.000 description 17
- IJGRMHOSHXDMSA-UHFFFAOYSA-N Atomic nitrogen Chemical compound N#N IJGRMHOSHXDMSA-UHFFFAOYSA-N 0.000 description 14
- 229910052751 metal Inorganic materials 0.000 description 14
- 239000002184 metal Substances 0.000 description 14
- 238000004458 analytical method Methods 0.000 description 11
- 229910001873 dinitrogen Inorganic materials 0.000 description 10
- 230000000052 comparative effect Effects 0.000 description 8
- 239000012071 phase Substances 0.000 description 7
- 238000010438 heat treatment Methods 0.000 description 6
- 239000011259 mixed solution Substances 0.000 description 6
- 239000007858 starting material Substances 0.000 description 6
- 239000003610 charcoal Substances 0.000 description 5
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 description 4
- PXHVJJICTQNCMI-UHFFFAOYSA-N Nickel Chemical compound [Ni] PXHVJJICTQNCMI-UHFFFAOYSA-N 0.000 description 4
- ZVQOOHYFBIDMTQ-UHFFFAOYSA-N [methyl(oxido){1-[6-(trifluoromethyl)pyridin-3-yl]ethyl}-lambda(6)-sulfanylidene]cyanamide Chemical compound N#CN=S(C)(=O)C(C)C1=CC=C(C(F)(F)F)N=C1 ZVQOOHYFBIDMTQ-UHFFFAOYSA-N 0.000 description 4
- 239000002253 acid Substances 0.000 description 4
- 230000000694 effects Effects 0.000 description 4
- 229910001220 stainless steel Inorganic materials 0.000 description 4
- 239000006200 vaporizer Substances 0.000 description 4
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 4
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 description 3
- 230000009471 action Effects 0.000 description 3
- 238000009835 boiling Methods 0.000 description 3
- 229910052802 copper Inorganic materials 0.000 description 3
- 239000010949 copper Substances 0.000 description 3
- -1 lantern Chemical compound 0.000 description 3
- 239000000463 material Substances 0.000 description 3
- 239000010935 stainless steel Substances 0.000 description 3
- XKRFYHLGVUSROY-UHFFFAOYSA-N Argon Chemical compound [Ar] XKRFYHLGVUSROY-UHFFFAOYSA-N 0.000 description 2
- VEXZGXHMUGYJMC-UHFFFAOYSA-M Chloride anion Chemical compound [Cl-] VEXZGXHMUGYJMC-UHFFFAOYSA-M 0.000 description 2
- VYZAMTAEIAYCRO-UHFFFAOYSA-N Chromium Chemical compound [Cr] VYZAMTAEIAYCRO-UHFFFAOYSA-N 0.000 description 2
- 235000013162 Cocos nucifera Nutrition 0.000 description 2
- 244000060011 Cocos nucifera Species 0.000 description 2
- FYYHWMGAXLPEAU-UHFFFAOYSA-N Magnesium Chemical compound [Mg] FYYHWMGAXLPEAU-UHFFFAOYSA-N 0.000 description 2
- ZOKXTWBITQBERF-UHFFFAOYSA-N Molybdenum Chemical compound [Mo] ZOKXTWBITQBERF-UHFFFAOYSA-N 0.000 description 2
- ATJFFYVFTNAWJD-UHFFFAOYSA-N Tin Chemical compound [Sn] ATJFFYVFTNAWJD-UHFFFAOYSA-N 0.000 description 2
- GWEVSGVZZGPLCZ-UHFFFAOYSA-N Titan oxide Chemical compound O=[Ti]=O GWEVSGVZZGPLCZ-UHFFFAOYSA-N 0.000 description 2
- RTAQQCXQSZGOHL-UHFFFAOYSA-N Titanium Chemical compound [Ti] RTAQQCXQSZGOHL-UHFFFAOYSA-N 0.000 description 2
- HCHKCACWOHOZIP-UHFFFAOYSA-N Zinc Chemical compound [Zn] HCHKCACWOHOZIP-UHFFFAOYSA-N 0.000 description 2
- QCWXUUIWCKQGHC-UHFFFAOYSA-N Zirconium Chemical compound [Zr] QCWXUUIWCKQGHC-UHFFFAOYSA-N 0.000 description 2
- MCMNRKCIXSYSNV-UHFFFAOYSA-N Zirconium dioxide Chemical compound O=[Zr]=O MCMNRKCIXSYSNV-UHFFFAOYSA-N 0.000 description 2
- 229910052782 aluminium Inorganic materials 0.000 description 2
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 description 2
- 229910052787 antimony Inorganic materials 0.000 description 2
- WATWJIUSRGPENY-UHFFFAOYSA-N antimony atom Chemical compound [Sb] WATWJIUSRGPENY-UHFFFAOYSA-N 0.000 description 2
- 239000006227 byproduct Substances 0.000 description 2
- 229910052799 carbon Inorganic materials 0.000 description 2
- 239000007795 chemical reaction product Substances 0.000 description 2
- 229910052804 chromium Inorganic materials 0.000 description 2
- 239000011651 chromium Substances 0.000 description 2
- 239000010941 cobalt Substances 0.000 description 2
- 229910017052 cobalt Inorganic materials 0.000 description 2
- GUTLYIVDDKVIGB-UHFFFAOYSA-N cobalt atom Chemical compound [Co] GUTLYIVDDKVIGB-UHFFFAOYSA-N 0.000 description 2
- 238000000354 decomposition reaction Methods 0.000 description 2
- 238000004821 distillation Methods 0.000 description 2
- 238000009826 distribution Methods 0.000 description 2
- 230000006872 improvement Effects 0.000 description 2
- 229910052742 iron Inorganic materials 0.000 description 2
- 239000011777 magnesium Substances 0.000 description 2
- 229910052749 magnesium Inorganic materials 0.000 description 2
- WPBNNNQJVZRUHP-UHFFFAOYSA-L manganese(2+);methyl n-[[2-(methoxycarbonylcarbamothioylamino)phenyl]carbamothioyl]carbamate;n-[2-(sulfidocarbothioylamino)ethyl]carbamodithioate Chemical compound [Mn+2].[S-]C(=S)NCCNC([S-])=S.COC(=O)NC(=S)NC1=CC=CC=C1NC(=S)NC(=O)OC WPBNNNQJVZRUHP-UHFFFAOYSA-L 0.000 description 2
- 150000002739 metals Chemical class 0.000 description 2
- 229910052750 molybdenum Inorganic materials 0.000 description 2
- 239000011733 molybdenum Substances 0.000 description 2
- 229910052759 nickel Inorganic materials 0.000 description 2
- 229910052757 nitrogen Inorganic materials 0.000 description 2
- 239000011148 porous material Substances 0.000 description 2
- 230000001737 promoting effect Effects 0.000 description 2
- 239000010453 quartz Substances 0.000 description 2
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N silicon dioxide Inorganic materials O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 description 2
- 239000013076 target substance Substances 0.000 description 2
- 229910052718 tin Inorganic materials 0.000 description 2
- 239000011135 tin Substances 0.000 description 2
- 239000010936 titanium Substances 0.000 description 2
- 229910052719 titanium Inorganic materials 0.000 description 2
- 239000011701 zinc Substances 0.000 description 2
- 229910052725 zinc Inorganic materials 0.000 description 2
- 229910052726 zirconium Inorganic materials 0.000 description 2
- 241000196324 Embryophyta Species 0.000 description 1
- KRHYYFGTRYWZRS-UHFFFAOYSA-M Fluoride anion Chemical compound [F-] KRHYYFGTRYWZRS-UHFFFAOYSA-M 0.000 description 1
- 229910000792 Monel Inorganic materials 0.000 description 1
- 229910000990 Ni alloy Inorganic materials 0.000 description 1
- CBENFWSGALASAD-UHFFFAOYSA-N Ozone Chemical compound [O-][O+]=O CBENFWSGALASAD-UHFFFAOYSA-N 0.000 description 1
- 229920001328 Polyvinylidene chloride Polymers 0.000 description 1
- 229910000831 Steel Inorganic materials 0.000 description 1
- PNEYBMLMFCGWSK-UHFFFAOYSA-N aluminium oxide Inorganic materials [O-2].[O-2].[O-2].[Al+3].[Al+3] PNEYBMLMFCGWSK-UHFFFAOYSA-N 0.000 description 1
- 229910052786 argon Inorganic materials 0.000 description 1
- 239000002802 bituminous coal Substances 0.000 description 1
- 239000000919 ceramic Substances 0.000 description 1
- 230000008859 change Effects 0.000 description 1
- 239000012459 cleaning agent Substances 0.000 description 1
- 239000003245 coal Substances 0.000 description 1
- 238000007033 dehydrochlorination reaction Methods 0.000 description 1
- 238000003795 desorption Methods 0.000 description 1
- RCJVRSBWZCNNQT-UHFFFAOYSA-N dichloridooxygen Chemical compound ClOCl RCJVRSBWZCNNQT-UHFFFAOYSA-N 0.000 description 1
- QDOXWKRWXJOMAK-UHFFFAOYSA-N dichromium trioxide Chemical compound O=[Cr]O[Cr]=O QDOXWKRWXJOMAK-UHFFFAOYSA-N 0.000 description 1
- 238000007865 diluting Methods 0.000 description 1
- 239000004088 foaming agent Substances 0.000 description 1
- 239000011521 glass Substances 0.000 description 1
- 150000008282 halocarbons Chemical class 0.000 description 1
- 229910000856 hastalloy Inorganic materials 0.000 description 1
- GPGMRSSBVJNWRA-UHFFFAOYSA-N hydrochloride hydrofluoride Chemical compound F.Cl GPGMRSSBVJNWRA-UHFFFAOYSA-N 0.000 description 1
- 239000012535 impurity Substances 0.000 description 1
- 229910001026 inconel Inorganic materials 0.000 description 1
- 239000011261 inert gas Substances 0.000 description 1
- 239000003077 lignite Substances 0.000 description 1
- 150000002736 metal compounds Chemical class 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 239000003921 oil Substances 0.000 description 1
- 239000003415 peat Substances 0.000 description 1
- 239000003208 petroleum Substances 0.000 description 1
- 239000003209 petroleum derivative Substances 0.000 description 1
- 239000005033 polyvinylidene chloride Substances 0.000 description 1
- 230000008569 process Effects 0.000 description 1
- 230000035484 reaction time Effects 0.000 description 1
- 238000011084 recovery Methods 0.000 description 1
- 238000007670 refining Methods 0.000 description 1
- 239000003507 refrigerant Substances 0.000 description 1
- 150000003839 salts Chemical class 0.000 description 1
- 239000004576 sand Substances 0.000 description 1
- 239000000243 solution Substances 0.000 description 1
- 230000003068 static effect Effects 0.000 description 1
- 239000010959 steel Substances 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
- 229920003002 synthetic resin Polymers 0.000 description 1
- 239000000057 synthetic resin Substances 0.000 description 1
- 239000012808 vapor phase Substances 0.000 description 1
- 238000010792 warming Methods 0.000 description 1
- 239000002699 waste material Substances 0.000 description 1
Classifications
-
- C—CHEMISTRY; METALLURGY
- C07—ORGANIC CHEMISTRY
- C07C—ACYCLIC OR CARBOCYCLIC COMPOUNDS
- C07C17/00—Preparation of halogenated hydrocarbons
- C07C17/35—Preparation of halogenated hydrocarbons by reactions not affecting the number of carbon or of halogen atoms in the reaction
- C07C17/358—Preparation of halogenated hydrocarbons by reactions not affecting the number of carbon or of halogen atoms in the reaction by isomerisation
-
- 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
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01J—CHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOID CHEMISTRY; THEIR RELEVANT APPARATUS
- B01J21/00—Catalysts comprising the elements, oxides, or hydroxides of magnesium, boron, aluminium, carbon, silicon, titanium, zirconium, or hafnium
- B01J21/18—Carbon
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01J—CHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOID CHEMISTRY; THEIR RELEVANT APPARATUS
- B01J23/00—Catalysts comprising metals or metal oxides or hydroxides, not provided for in group B01J21/00
- B01J23/70—Catalysts comprising metals or metal oxides or hydroxides, not provided for in group B01J21/00 of the iron group metals or copper
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01J—CHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOID CHEMISTRY; THEIR RELEVANT APPARATUS
- B01J27/00—Catalysts comprising the elements or compounds of halogens, sulfur, selenium, tellurium, phosphorus or nitrogen; Catalysts comprising carbon compounds
- B01J27/06—Halogens; Compounds thereof
- B01J27/08—Halides
-
- C—CHEMISTRY; METALLURGY
- C07—ORGANIC CHEMISTRY
- C07B—GENERAL METHODS OF ORGANIC CHEMISTRY; APPARATUS THEREFOR
- C07B2200/00—Indexing scheme relating to specific properties of organic compounds
- C07B2200/09—Geometrical isomers
Definitions
- the present disclosure relates to 1-chloro-3,3,3-trifluoropropene or 1-chloro-2,3,3-trifluoropropene geometric isomers (isomer 1) with respect to methods and compositions for producing unsaturated chlorofluorocarbons. ) Is geometrically isomerized to produce the corresponding geometric isomer (isomer 2), and the composition.
- Unsaturated chlorofluorocarbons such as 1-chloro-3,3,3-trifluoropropene and 1-chloro-2,3,3-trifluoropropene have a low ozone depletion potential (ODP) and global warming potential. Since it has a coefficient (GWP), it is expected to be one of the compounds that can be used as a cleaning agent, a foaming agent, a refrigerant, and the like.
- Patent Document 1 describes a method for isomerizing a cis form of 1-chloro-3,3,3-trifluoropropene into a trans form, and a trans form of 1-chloro-3,3,3-trifluoropropene. Is disclosed as a method for isomerizing to a cis form.
- One of the subjects of the embodiments of the present disclosure is to provide a method and a composition for efficiently producing unsaturated chlorofluorocarbons.
- the means for solving the above problems include the following embodiments.
- a method for producing a corresponding geometric isomer (isomer 2) represented by the following formula (1) by geometrically isomerizing the geometric isomer (isomer 1) represented by the following formula (1) comprising contacting a geometric isomer (isomer 1) represented by the following formula (1) with a compound (A) which is at least one of dichlorotrifluoropropane and hydrogen chloride in a gas phase.
- CF 3-n Hn -CX CClH (1) (N is 0 or 1, X is a fluorine atom or a hydrogen atom, When n is 0, X is a hydrogen atom, dichlorotrifluoropropane is 1,1-dichloro-3,3,3-trifluoropropane, and so on. When n is 1, X is a fluorine atom, dichlorotrifluoropropane is 1,1-dichloro-2,3,3-trifluoropropane, and 1,2-dichloro-2,3,3-trifluoropropane. At least one of.
- the geometric isomer (isomer 1) represented by the formula (1) is a trans isomer and the produced geometric isomer (isomer 2) is a cis isomer.
- the geometric isomer (isomer 1) represented by the formula (1) is E-1-chloro-3,3,3-trifluoropropene, and the produced geometric isomer (isomer 2) is Z-.
- the geometric isomer (isomer 1) represented by the formula (1) is E-1-chloro-2,3,3-trifluoropropene, and the produced geometric isomer (isomer 2) is Z-.
- a raw material composition for producing a corresponding geometric isomer (isomer 2) represented by the following formula (1) by geometrically isomerizing the geometric isomer (isomer 1) represented by the following formula (1) A composition comprising a geometric isomer (isomer 1) represented by the following formula (1), dichlorotrifluoropropane, and a compound (A) which is at least one of hydrogen chloride.
- CF 3-n Hn -CX CClH (1) (N is 0 or 1, X is a fluorine atom or a hydrogen atom, When n is 0, X is a hydrogen atom and dichlorotrifluoropropane is 1,1-dichloro-3,3,3-trifluoropropane. When n is 1, X is a fluorine atom, dichlorotrifluoropropane is 1,1-dichloro-2,3,3-trifluoropropane, and 1,2-dichloro-2,3,3-trifluoropropane. At least one of.
- a composition comprising a geometric isomer represented by the following formula (1), dichlorotrifluoropropane, and a compound (A) which is at least one of hydrogen chloride.
- CF 3-n Hn -CX CClH (1) (N is 0 or 1, X is a fluorine atom or a hydrogen atom, When n is 0, X is a hydrogen atom and dichlorotrifluoropropane is 1,1-dichloro-3,3,3-trifluoropropane.
- dichlorotrifluoropropane is 1,1-dichloro-2,3,3-trifluoropropane, and 1,2-dichloro-2,3,3-trifluoropropane. At least one of. )
- isomer 1 when the isomer 1 is the Z-form, the corresponding isomer 2 indicates the E-form. Further, when the isomer 1 is the E form, the corresponding isomer 2 indicates the Z form.
- the cis form of isomer 1 is represented by the following structure.
- trans isomer of isomer 1 is represented by the following structure.
- the isomer 1 is Z-1-chloro-3,3,3-trifluoropropene (cis form), E-1-chloro-3,3,3-trifluoropropene (trans form), Z-1-chloro. -2,3,3-trifluoropropene (cis form) or E-1-chloro-2,3,3-trifluoropropene (trans form).
- isomer 1 is Z-1-chloro-3,3,3-trifluoropropene
- the corresponding isomer 2 is E-1-chloro-3,3,3-trifluoropropene.
- isomer 1 is E-1-chloro-3,3,3-trifluoropropene
- the corresponding isomer 2 is Z-1-chloro-3,3,3-trifluoropropene.
- isomer 1 is Z-1-chloro-2,3,3-trifluoropropene
- the corresponding isomer 2 is E-1-chloro-2,3,3-trifluoropropene.
- isomer 1 is E-1-chloro-2,3,3-trifluoropropene
- the corresponding isomer 2 is Z-1-chloro-2,3,3-trifluoropropene.
- This production method is a method for producing a corresponding geometric isomer (isomer 2) represented by the following formula (1) by geometrically isomerizing the geometric isomer (isomer 1) represented by the following formula (1). There, Including a step of contacting the geometric isomer (isomer 1) represented by the following formula (1) with dichlorotrifluoropropane as an accelerator and compound (A) which is at least one of hydrogen chloride in the gas phase. , The method.
- CF 3-n Hn -CX CClH (1) (N is 0 or 1, X is a fluorine atom or a hydrogen atom, When n is 0, X is a hydrogen atom, dichlorotrifluoropropane is 1,1-dichloro-3,3,3-trifluoropropane, and so on. When n is 1, X is a fluorine atom, dichlorotrifluoropropane is 1,1-dichloro-2,3,3-trifluoropropane, and 1,2-dichloro-2,3,3-trifluoropropane. At least one of. )
- the compound (A) in the present production method is at least one of dichlorotrifluoropropane and hydrogen chloride.
- the compound (A) functions as an accelerator for the isomerization reaction.
- the compound (A) is preferably hydrogen chloride, but is not limited thereto.
- hydrogen chloride is preferable as an accelerator, but dichlorotrifluoropropane also functions as an accelerator to promote the isomerization reaction. ..
- the compound (A) is preferably dichlorotrifluoropropane, but is not limited thereto.
- dichlorotrifluoropropane is preferable as an accelerator, but hydrogen chloride also functions as an accelerator to promote the isomerization reaction. ..
- the total amount of the compound (A) is preferably 0.001 mol or more and 1 mol or less, preferably 0.005, with respect to 1 mol of the geometric isomer (isomer 1) represented by the formula (1). It is more preferably mol or more and 0.5 mol or less, and further preferably 0.01 mol or more and 0.2 mol or less, but the present invention is not limited thereto.
- the isomerization process is carried out in the gas phase.
- a batch method or a distribution method can be applied to the isomerization, but an industrially highly productive gas phase distribution method is preferable.
- the isomerization step may be carried out in the presence of at least one of the catalyst and the filler.
- the reaction tube is filled with at least one of a catalyst and a filler, and the gaseous geometric isomer (isomer 1) represented by the formula (1) is brought into contact with the compound (A).
- the isomerization step is preferably, but not limited to, performed in the presence of a filler.
- the isomerization reaction of this embodiment is carried out in the presence of compound (A).
- compound (A) functions as an accelerator for geometric isomerization of 1233 zd or 1233 yd.
- the dichlorotrifluoropropane is 1,1-dichloro-3,3,3-trifluoropropane (hereinafter, also referred to as "243fa").
- 243fa itself can be converted to 1233zd, which contributes to the improvement of the production efficiency of 1233zd.
- the dichlorotrifluoropropane is 1,1-dichloro-2,3,3-trifluoropropane (hereinafter also referred to as "243eb”), and 1,2-. It is at least one of dichloro-2,3,3-trifluoropropane (hereinafter, also referred to as "243ba").
- 243eb and 243ba themselves can be converted to 1233yd, which contributes to the improvement of the production efficiency of 1233yd.
- 1233zd (Z) and 1233zd (E) can be separated by precision distillation due to the difference in boiling point. Therefore, when 1233zd (E) is isomerized to obtain 1233zd (Z), the product containing 1233zd (Z) obtained by isomerization is collected, and 1233zd (Z) and 1233zd (E) are distilled or the like. It is rational and preferable to use the recovered 1233 zd (E) as a raw material for isomerization again after isolating each of them from the viewpoint of efficient use of the raw materials.
- 1233yd (Z) and 1233yd (E) can be separated by precision distillation due to the difference in boiling point. Therefore, when 1233yd (E) is isomerized to obtain 1233yd (Z), the product containing 1233yd (Z) obtained by isomerization is collected, and 1233yd (Z) and 1233yd (E) are distilled or the like. After isolating each, it is rational and preferable to use the recovered 1233yd (E) as a raw material for isomerization again from the viewpoint of efficient use of the raw material.
- the compound (A) may be supplied to the reaction tube as a raw material together with the compound represented by the above formula (1) in the isomerization step of the compound represented by the above formula (1), and may be supplied to the reaction tube by the above formula (1). It may be supplied to the reaction tube separately from the raw material containing the represented compound.
- the metal catalyst is not particularly limited, but at least one metal selected from the group consisting of aluminum, chromium, titanium, manganese, iron, nickel, cobalt, copper, magnesium, zirconium, molybdenum, zinc, tin, lantern and antimony. It is preferable to include it.
- the metal catalyst may be a supported catalyst supported on a carrier such as activated carbon.
- a carrier such as activated carbon.
- the metal to be carried include, but are not limited to, aluminum, chromium, titanium, manganese, iron, nickel, cobalt, copper, magnesium, zirconium, molybdenum, zinc, tin, lantern, antimony and the like. These metals are supported as fluoride, chloride, fluoride chloride, oxyfluoride, oxychloride, oxyfluoride chloride and the like, and two or more kinds of metal compounds may be supported together.
- the carrier not only activated carbon but also metals such as alumina, chromia, zirconia, and titania can be used. From the viewpoint of reaction efficiency, it is preferable to use activated carbon as a carrier.
- Examples of the filler that can be used in the isomerization step include, but are not limited to, activated carbon, stainless steel raschig rings, stainless steel nets, quartz raschig rings, and glass raschig rings. From the viewpoint of reaction efficiency, it is preferable to use activated carbon.
- Activated carbon includes charcoal, coconut shell charcoal, palm kernel charcoal, plant-based activated carbon made from bare ash, peat, sub-charcoal, lignite, bituminous coal, smokeless coal-based activated carbon, petroleum residue, oil carbon, etc. Examples thereof include petroleum-based activated carbon as a raw material and synthetic resin-based activated carbon using carbonized polyvinylidene chloride as a raw material.
- the activated carbon used in this embodiment can be selected from these commercially available activated carbons and used.
- coconut shell charcoal for gas refining and catalyst carrier (Granular Shirasagi GX, SX, CX, XRC manufactured by Osaka Gas Chemical Co., Ltd., PCB manufactured by Toyo Calgon Co., Ltd., Yashikol manufactured by Taihei Chemical Industry Co., Ltd., Kuraraycol GG, GC) and the like are suitable. Used.
- activated carbon when activated carbon is used as a filler, it is preferable to use activated carbon that does not support a metal. Activated carbon that does not support metal is suitable from the viewpoint of cost and waste treatment.
- the activated charcoal that does not carry a metal means that the metal content in the activated charcoal catalyst is 0% by mass or more and 5% by mass or less, preferably 0% by mass or more and 1% by mass or less, and more preferably 0% by mass. It shows the activated charcoal which is% or more and 0.1% by mass or less.
- the activated carbon used may be granular, and may have a spherical, fibrous, powdery, or honeycomb-like shape as long as it is suitable for the reactor.
- the specific surface area and pore volume of the activated carbon are sufficient within the standard of commercial products, but the specific surface area is preferably larger than 400 m 2 / g, and more preferably 800 m 2 / g or more and 3000 m 2 / g or less. preferable. Further, the pore volume is preferably larger than 0.1 cm 3 / g, and more preferably 0.2 cm 3 / g or more and 1.0 cm 3 / g or less.
- the reaction temperature of the isomerization reaction is not particularly limited as long as it is equal to or higher than the boiling point of the isomer 1, but is preferably more than 150 ° C and lower than 500 ° C. If the reaction temperature of the isomerization reaction is more than 150 ° C., the target product can be obtained in good yield, and if it is less than 500 ° C., impurities are less likely to be produced as a by-product and a high-purity target product can be obtained.
- the reaction temperature of the isomerization reaction is preferably 180 ° C. or higher and 380 ° C. or lower, particularly preferably 220 ° C. or higher and 330 ° C. or lower, and further preferably more than 250 ° C. and 330 ° C. or lower.
- the method for heating the reaction tube is not particularly limited, and examples thereof include a method of directly heating with an electric heater or a burner, and a method of indirect heating using molten salt or sand.
- the contact time depends on the temperature (reaction temperature), shape, and catalyst of the reaction tube, it is desirable to appropriately adjust and optimize the supply rate of the raw material for each set temperature, shape of the reaction tube, and type of catalyst. .. From the viewpoint of recovery and reuse of unreacted raw materials, it is preferable to adopt a contact time that can obtain a raw material conversion rate of 5% or more, and more preferably, the contact time is optimized so that the conversion rate is 10% or more.
- the contact time is not particularly limited, but is usually 10 seconds or more and 180 seconds or less, preferably 30 seconds or more and 120 seconds or less. As a preferred embodiment, when the reaction temperature is in the range of more than 150 ° C and less than 500 ° C, the contact time may be 10 seconds or more and 180 seconds or less, but is not limited thereto.
- the reaction pressure is not particularly limited, but it is preferable to carry out in the vicinity of normal pressure.
- a pressure reaction of 1 MPa or more is not preferable because it requires an expensive pressure-resistant device and may polymerize a raw material or a product.
- the reaction can be carried out using an inert gas such as nitrogen or argon as a diluting gas.
- the reactor that can be used for isomerization includes a reaction tube, a unit for introducing and flowing out various gases, and the like. These are formed from materials that are highly resistant to hydrogen chloride. Such materials include, for example, stainless steel materials such as quartz, carbon, ceramics, austenitic stainless steels, or high nickel alloys such as Monel®, Hastelloy®, and Inconel®. And copper clad steel, but not limited to these.
- the shape of the reaction tube is not particularly limited.
- the inside of the reaction tube may be empty, and the reaction tube may be provided with a filling such as a static mixer, Raschig ring, pole ring, wire mesh, etc., which is inert to the reaction.
- CF 3-n Hn -CX CClH (1) (N is 0 or 1, X is a fluorine atom or a hydrogen atom, When n is 0, X is a hydrogen atom, dichlorotrifluoropropane is 1,1-dichloro-3,3,3-trifluoropropane, and so on. When n is 1, X is a fluorine atom, dichlorotrifluoropropane is 1,1-dichloro-2,3,3-trifluoropropane, and 1,2-dichloro-2,3,3-trifluoropropane. At least one of. )
- a composition comprising a geometric isomer represented by the following formula (1), dichlorotrifluoropropane, and a compound (A) which is at least one of hydrogen chloride.
- CF 3-n Hn -CX CClH (1) (N is 0 or 1, X is a fluorine atom or a hydrogen atom, When n is 0, X is a hydrogen atom, dichlorotrifluoropropane is 1,1-dichloro-3,3,3-trifluoropropane, and so on.
- dichlorotrifluoropropane is 1,1-dichloro-2,3,3-trifluoropropane, and 1,2-dichloro-2,3,3-trifluoropropane. At least one of. )
- Each component in the above composition is as described above.
- GC% of the composition analysis value of the raw material and the reaction product is "GC area%” of the composition obtained by measuring the raw material and the reaction product by gas chromatography (detector: FID). Represents. The number of digits below the display digit is rounded off. For example, 0.0GC% indicates less than 0.05GC%.
- Table 1 shows the reaction temperature, contact time, and gas chromatography analysis results. Further, 1233zdE / Z is the production ratio of 1233zd (E) and 1233zd (Z) (that is, the value obtained by dividing the production amount (GC%) of 1233zd (E) by the production amount (GC%) of 1233zd (Z)). show. The composition of the raw materials is also shown in Table 1.
- Example 2 to 5 The isomerization reaction was carried out in the same manner as in Example 1 except that the reaction temperature and the contact time were changed.
- Table 1 shows the reaction temperature and contact time of Examples 2 to 5, and the analysis results of gas chromatography of the product obtained by the isomerization reaction.
- a vapor phase dehydrochlorination reaction of 243fa was carried out in order to confirm the conversion of 243fa to 1233zd (E) or 1233zd (Z).
- a gas phase reactor having a reaction tube filled with activated carbon (Shirasagi G2X manufactured by Osaka Gas Chemical Co., Ltd.) is equipped with a metal electric heater and an external heating device (mantle heater manufactured by Tokyo Kikai Co., Ltd.), and a flow velocity of about 50 mL / min. The mixture was heated while flowing nitrogen gas through the reactor.
- Comparative Example 2 The isomerization reaction was carried out in the same manner as in Comparative Example 1 except that the contact time was changed.
- Table 4 shows the reaction temperature and contact time of Comparative Example 2 and the analysis results of gas chromatography of the product obtained by the isomerization reaction.
- Example 6 Hydrogen chloride (HCl) as compound (A) was prepared using a mixed solution of 1233 zd (E) (0.0GC%) and 1233 zd (Z) (> 99.9 GC%) as a starting material for the isomerization reaction. The same operation as in Example 1 was performed except that the mixture was supplied to the reaction tube at a supply rate of 5 ml / min. The amount of HCl per mol of 1233 zd (Z) in the starting material was 0.05 mol. The analysis results of gas chromatography are shown in Table 5.
- Example 7 to 10 The isomerization reaction was carried out in the same manner as in Example 6 except that the reaction temperature and the amount of HCl added were changed. Table 5 shows the reaction temperature and contact time of Examples 7 to 10, the amount of HCl added, and the results of gas chromatography analysis of the product obtained by the isomerization reaction.
- a gas phase reactor having a reaction tube filled with activated carbon (Shirasagi G2X manufactured by Osaka Gas Chemical Co., Ltd.) is equipped with a metal electric heater and an external heating device (mantle heater manufactured by Tokyo Kikai Co., Ltd.), and the flow velocity is about 50 mL / min. The mixture was heated while flowing nitrogen gas through the reactor.
- the isomerization reaction from 1233 yd (E) to 1233 yd (Z) or the isomerization reaction from 1233 yd (Z) to 1233 yd (E) at least one of the compound (A), 243eb, 243ba and HCl, is a raw material.
- the isomerization reaction from 1233 yd (E) to 1233 yd (Z) or the conversion rate from 1233 yd (Z) to 1233 yd (E) can be significantly improved.
- 243eb or 243ba it is presumed that these decompositions produce 1233yd and hydrogen chloride, and this hydrogen chloride contributes to the reaction.
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Abstract
Description
下記式(1)で表わされる幾何異性体(異性体1)を幾何異性化して、対応する下記式(1)で表わされる幾何異性体(異性体2)を製造する方法であって、
下記式(1)で表わされる幾何異性体(異性体1)を、気相中、ジクロロトリフルオロプロパン、及び塩化水素の少なくとも一つである化合物(A)と接触させる工程を含む、方法。
CF3-nHn-CX=CClH (1)
(nは0または1であり、Xはフッ素原子または水素原子であり、
nが0のとき、Xは水素原子であり、ジクロロトリフルオロプロパンは1,1-ジクロロ-3,3,3-トリフルオロプロパンであり、
nが1のとき、Xはフッ素原子であり、ジクロロトリフルオロプロパンは1,1-ジクロロ-2,3,3-トリフルオロプロパン、及び1,2-ジクロロ-2,3,3-トリフルオロプロパンの少なくとも一つである。)
〔2〕
式(1)で表される幾何異性体(異性体1)がシス体であって、製造される幾何異性体(異性体2)がトランス体である〔1〕に記載の方法。
〔3〕
式(1)で表される幾何異性体(異性体1)がZ-1-クロロ-3,3,3-トリフルオロプロペンであって、製造される幾何異性体(異性体2)がE-1-クロロ-3,3,3-トリフルオロプロペンである〔2〕に記載の方法。
〔4〕
式(1)で表される幾何異性体(異性体1)がZ-1-クロロ-2,3,3-トリフルオロプロペンであって、製造される幾何異性体(異性体2)がE-1-クロロ-2,3,3-トリフルオロプロペンである〔2〕に記載の方法。
〔5〕
上記化合物(A)が塩化水素である〔2〕~〔4〕のいずれか1項に記載の方法。
〔6〕
式(1)で表される幾何異性体(異性体1)がトランス体であって、製造される幾何異性体(異性体2)がシス体である〔1〕に記載の方法。
〔7〕
式(1)で表される幾何異性体(異性体1)がE-1-クロロ-3,3,3-トリフルオロプロペンであって、製造される幾何異性体(異性体2)がZ-1-クロロ-3,3,3-トリフルオロプロペンである〔6〕に記載の方法。
〔8〕
式(1)で表される幾何異性体(異性体1)がE-1-クロロ-2,3,3-トリフルオロプロペンであって、製造される幾何異性体(異性体2)がZ-1-クロロ-2,3,3-トリフルオロプロペンである〔6〕に記載の方法。
〔9〕
上記化合物(A)がジクロロトリフルオロプロパンである、〔6〕~〔8〕のいずれか1項に記載の方法。
〔10〕
前記接触を触媒、及び充填材の少なくとも一つの存在下で行う、〔1〕~〔9〕のいずれか1項に記載の方法。
〔11〕
前記接触を、活性炭の存在下で行う、〔1〕~〔10〕のいずれか1項に記載の方法。
〔12〕
前記接触を150℃超500℃未満で行う、〔1〕~〔11〕のいずれか1項に記載の方法。
〔13〕
下記式(1)で表わされる幾何異性体(異性体1)を幾何異性化して、対応する下記式(1)で表わされる幾何異性体(異性体2)を製造するための原料組成物であって、
下記式(1)で表わされる幾何異性体(異性体1)と、ジクロロトリフルオロプロパン、及び塩化水素の少なくとも一つである化合物(A)とを含む、組成物。
CF3-nHn-CX=CClH (1)
(nは0または1であり、Xはフッ素原子または水素原子であり、
nが0のとき、Xは水素原子であり、ジクロロトリフルオロプロパンは1,1-ジクロロ-3,3,3-トリフルオロプロパンであり、
nが1のとき、Xはフッ素原子であり、ジクロロトリフルオロプロパンは1,1-ジクロロ-2,3,3-トリフルオロプロパン、及び1,2-ジクロロ-2,3,3-トリフルオロプロパンの少なくとも一つである。)
〔14〕
下記式(1)で表わされる幾何異性体と、ジクロロトリフルオロプロパン、及び塩化水素の少なくとも一つである化合物(A)とを含む、組成物。
CF3-nHn-CX=CClH (1)
(nは0または1であり、Xはフッ素原子または水素原子であり、
nが0のとき、Xは水素原子であり、ジクロロトリフルオロプロパンは1,1-ジクロロ-3,3,3-トリフルオロプロパンであり、
nが1のとき、Xはフッ素原子であり、ジクロロトリフルオロプロパンは1,1-ジクロロ-2,3,3-トリフルオロプロパン、及び1,2-ジクロロ-2,3,3-トリフルオロプロパンの少なくとも一つである。)
異性体1のシス体は以下の構造で表される。
異性体1がZ-1-クロロ-3,3,3-トリフルオロプロペンであるとき、対応する異性体2はE-1-クロロ-3,3,3-トリフルオロプロペンである。
以下、本実施形態に係る1-クロロ-3,3,3-トリフルオロプロペン(以下、「1233zd」ともいう)、及び1-クロロ-2,3,3-トリフルオロプロペン(以下、「1233yd」ともいう)を製造するための方法(以下、「本製造方法」とも記す)について説明する。
下記式(1)で表わされる幾何異性体(異性体1)を、気相中、促進剤として、ジクロロトリフルオロプロパン、及び塩化水素の少なくとも一つである化合物(A)と接触させる工程を含む、方法である。
CF3-nHn-CX=CClH (1)
(nは0または1であり、Xはフッ素原子または水素原子であり、
nが0のとき、Xは水素原子であり、ジクロロトリフルオロプロパンは1,1-ジクロロ-3,3,3-トリフルオロプロパンであり、
nが1のとき、Xはフッ素原子であり、ジクロロトリフルオロプロパンは1,1-ジクロロ-2,3,3-トリフルオロプロパン、及び1,2-ジクロロ-2,3,3-トリフルオロプロパンの少なくとも一つである。)
異性体1がシス体である場合は、上記化合物(A)が塩化水素であることが好ましいが、これに限定されない。例えば、Z-1-クロロ-3,3,3-トリフルオロプロペンの異性化反応においては、促進剤として塩化水素が好ましいが、ジクロロトリフルオロプロパンも促進剤として機能して異性化反応を促進させる。
異性体1がトランス体である場合は、上記化合物(A)がジクロロトリフルオロプロパンであることが好ましいが、これに限定されない。例えば、E-1-クロロ-3,3,3-トリフルオロプロペンの異性化反応においては、促進剤としてジクロロトリフルオロプロパンが好ましいが、塩化水素も促進剤として機能して異性化反応を促進させる。
担体としては、活性炭だけではなく、アルミナ、クロミア、ジルコニア、チタニアといった金属等を用いることもできる。反応効率の観点から、活性炭を担体として用いることが好ましい。
好ましい一実施形態として、反応温度が150℃超500℃未満の範囲の場合、接触時間は、10秒以上180秒以下であってもよいが、これらに限定されるものではない。
本開示は、以下の組成物にも関するものである。
下記式(1)で表わされる幾何異性体(異性体1)を幾何異性化して、対応する下記式(1)で表わされる幾何異性体(異性体2)を製造するための原料組成物であって、
下記式(1)で表わされる幾何異性体(異性体1)と、ジクロロトリフルオロプロパン、及び塩化水素の少なくとも一つである化合物(A)とを含む、組成物。
CF3-nHn-CX=CClH (1)
(nは0または1であり、Xはフッ素原子または水素原子であり、
nが0のとき、Xは水素原子であり、ジクロロトリフルオロプロパンは1,1-ジクロロ-3,3,3-トリフルオロプロパンであり、
nが1のとき、Xはフッ素原子であり、ジクロロトリフルオロプロパンは1,1-ジクロロ-2,3,3-トリフルオロプロパン、及び1,2-ジクロロ-2,3,3-トリフルオロプロパンの少なくとも一つである。)
下記式(1)で表わされる幾何異性体と、ジクロロトリフルオロプロパン、及び塩化水素の少なくとも一つである化合物(A)とを含む、組成物。
CF3-nHn-CX=CClH (1)
(nは0または1であり、Xはフッ素原子または水素原子であり、
nが0のとき、Xは水素原子であり、ジクロロトリフルオロプロパンは1,1-ジクロロ-3,3,3-トリフルオロプロパンであり、
nが1のとき、Xはフッ素原子であり、ジクロロトリフルオロプロパンは1,1-ジクロロ-2,3,3-トリフルオロプロパン、及び1,2-ジクロロ-2,3,3-トリフルオロプロパンの少なくとも一つである。)
上記の組成物における各成分は、上述の通りである。
ここで、原料、及び反応生成物の組成分析値の「GC%」は、原料、及び反応生成物をガスクロマトグラフィー(検出器:FID)によって測定して得られた組成の「GC面積%」を表す。なお、表示桁数以下は四捨五入した。例えば、0.0GC%は0.05GC%未満であることを示している。
[実施例1]
活性炭(大阪ガスケミカル社製 白鷺G2X)100ccを充填した反応管を有する気相反応装置に金属製電気ヒーターと、外部加熱装置(東京機器株式会社製 マントルヒーター)を備え、約50mL/分の流速で窒素ガスを反応装置に流しながら加熱した。
なお、上記原料の組成も表1に示す。
反応温度及び接触時間を変更したことを除き、実施例1と同様に異性化反応を行った。実施例2~5の反応温度及び接触時間、及び異性化反応による生成物のガスクロマトグラフィーの分析結果を表1に示す。
50mL/分の流量で窒素ガスを流しながら、異性化反応の出発原料として、243fa(95.2GC%)と1233zd(Z)(0.0GC%)との混合液を1.5g/分の流速で、気化器を通して気化させ反応管へ供給した。原料の流速が安定したところで窒素ガスの導入を停止し、この間の反応管内の温度は250℃であった。反応が安定したことを確認し、反応器から流出するガスを水中に吹き込んで酸性ガスを除去した後、生成物をガスクロマトグラフィーで分析した。反応温度及び接触時間、ガスクロマトグラフィーの分析結果を表2に示す。
なお、上記原料の組成も表2に示す。
反応温度及び接触時間を変更したことを除き、参考例1と同様に異性化反応を行った。参考例2~4の反応温度及び接触時間、及び異性化反応による生成物のガスクロマトグラフィーの分析結果を表2に示す。
活性炭(大阪ガスケミカル社製 白鷺G2X)100ccを充填した反応管を有する気相反応装置に金属製電気ヒーターと、外部加熱装置(東京機器株式会社製 マントルヒーター)を備え、約50mL/分の流速で窒素ガスを反応装置に流しながら加熱した。
なお、上記原料の組成も表4に示す。
接触時間を変更したことを除き、比較例1と同様に異性化反応を行った。比較例2の反応温度及び接触時間、及び異性化反応による生成物のガスクロマトグラフィーの分析結果を表4に示す。
[実施例6]
異性化反応の出発原料として、1233zd(E)(0.0GC%)と1233zd(Z)(>99.9GC%)との混合液を用いて、化合物(A)としての塩化水素(HCl)を5ml/分の供給速度で反応管へ供給した事以外は、実施例1と同様の操作を行った。出発原料における1233zd(Z)1モルに対するHClの量は0.05モルであった。ガスクロマトグラフィーの分析結果を表5に示す。
反応温度及びHClの添加量を変更したことを除き、実施例6と同様に異性化反応を行った。実施例7~10の反応温度及び接触時間、HClの添加量、及び異性化反応による生成物のガスクロマトグラフィーの分析結果を表5に示す。
活性炭(大阪ガスケミカル社製 白鷺G2X)100ccを充填した反応管を有する気相反応装置に金属製電気ヒーターと、外部加熱装置(東京機器株式会社製 マントルヒーター)を備え、約50mL/分の流速で窒素ガスを反応装置に流しながら加熱した。
反応温度を変更したことを除き、比較例3と同様に異性化反応を行った。比較例4~5の反応温度及び接触時間、及び異性化反応による生成物のガスクロマトグラフィーの分析結果を表6に示す。
1233yd(E)および1233yd(Z)の少なくとも一つと、243ebおよび243baの少なくとも一つとを含む出発原料を用いること以外は実施例1~5と同様の方法で異性化反応を行う。また、1233zd(E)(0.0GC%)と1233zd(Z)(>99.9GC%)との混合液の代わりに、1233yd(E)および1233yd(Z)の少なくとも一つを含む液を用いること以外は実施例6~10と同様の方法で、1233yd(E)から1233yd(Z)への異性化反応、または1233yd(Z)から1233yd(E)への異性化反応を行う。これらの生成物をガスクロマトグラフィーで分析する。
なお、本出願は、2020年12月22日出願の日本特許出願(特願2020-212438)に基づくものであり、その内容はここに参照として取り込まれる。
Claims (14)
- 下記式(1)で表わされる幾何異性体(異性体1)を幾何異性化して、対応する下記式(1)で表わされる幾何異性体(異性体2)を製造する方法であって、
下記式(1)で表わされる幾何異性体(異性体1)を、気相中、ジクロロトリフルオロプロパン、及び塩化水素の少なくとも一つである化合物(A)と接触させる工程を含む、方法。
CF3-nHn-CX=CClH (1)
(nは0または1であり、Xはフッ素原子または水素原子であり、
nが0のとき、Xは水素原子であり、ジクロロトリフルオロプロパンは1,1-ジクロロ-3,3,3-トリフルオロプロパンであり、
nが1のとき、Xはフッ素原子であり、ジクロロトリフルオロプロパンは1,1-ジクロロ-2,3,3-トリフルオロプロパン、及び1,2-ジクロロ-2,3,3-トリフルオロプロパンの少なくとも一つである。) - 式(1)で表される幾何異性体(異性体1)がシス体であって、製造される幾何異性体(異性体2)がトランス体である請求項1に記載の方法。
- 式(1)で表される幾何異性体(異性体1)がZ-1-クロロ-3,3,3-トリフルオロプロペンであって、製造される幾何異性体(異性体2)がE-1-クロロ-3,3,3-トリフルオロプロペンである請求項2に記載の方法。
- 式(1)で表される幾何異性体(異性体1)がZ-1-クロロ-2,3,3-トリフルオロプロペンであって、製造される幾何異性体(異性体2)がE-1-クロロ-2,3,3-トリフルオロプロペンである請求項2に記載の方法。
- 上記化合物(A)が塩化水素である請求項2~4のいずれか1項に記載の方法。
- 式(1)で表される幾何異性体(異性体1)がトランス体であって、製造される幾何異性体(異性体2)がシス体である請求項1に記載の方法。
- 式(1)で表される幾何異性体(異性体1)がE-1-クロロ-3,3,3-トリフルオロプロペンであって、製造される幾何異性体(異性体2)がZ-1-クロロ-3,3,3-トリフルオロプロペンである請求項6に記載の方法。
- 式(1)で表される幾何異性体(異性体1)がE-1-クロロ-2,3,3-トリフルオロプロペンであって、製造される幾何異性体(異性体2)がZ-1-クロロ-2,3,3-トリフルオロプロペンである請求項6に記載の方法。
- 上記化合物(A)がジクロロトリフルオロプロパンである、請求項6~8のいずれか1項に記載の方法。
- 前記接触を触媒、及び充填材の少なくとも一つの存在下で行う、請求項1~9のいずれか1項に記載の方法。
- 前記接触を、活性炭の存在下で行う、請求項1~10のいずれか1項に記載の方法。
- 前記接触を150℃超500℃未満で行う、請求項1~11のいずれか1項に記載の方法。
- 下記式(1)で表わされる幾何異性体(異性体1)を幾何異性化して、対応する下記式(1)で表わされる幾何異性体(異性体2)を製造するための原料組成物であって、
下記式(1)で表わされる幾何異性体(異性体1)と、ジクロロトリフルオロプロパン、及び塩化水素の少なくとも一つである化合物(A)とを含む、組成物。
CF3-nHn-CX=CClH (1)
(nは0または1であり、Xはフッ素原子または水素原子であり、
nが0のとき、Xは水素原子であり、ジクロロトリフルオロプロパンは1,1-ジクロロ-3,3,3-トリフルオロプロパンであり、
nが1のとき、Xはフッ素原子であり、ジクロロトリフルオロプロパンは1,1-ジクロロ-2,3,3-トリフルオロプロパン、及び1,2-ジクロロ-2,3,3-トリフルオロプロパンの少なくとも一つである。) - 下記式(1)で表わされる幾何異性体と、ジクロロトリフルオロプロパン、及び塩化水素の少なくとも一つである化合物(A)とを含む、組成物。
CF3-nHn-CX=CClH (1)
(nは0または1であり、Xはフッ素原子または水素原子であり、
nが0のとき、Xは水素原子であり、ジクロロトリフルオロプロパンは1,1-ジクロロ-3,3,3-トリフルオロプロパンであり、
nが1のとき、Xはフッ素原子であり、ジクロロトリフルオロプロパンは1,1-ジクロロ-2,3,3-トリフルオロプロパン、及び1,2-ジクロロ-2,3,3-トリフルオロプロパンの少なくとも一つである。)
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