DE69319711T2 - Verfahren zur entfernung von fluorwasserstoff - Google Patents
Verfahren zur entfernung von fluorwasserstoffInfo
- Publication number
- DE69319711T2 DE69319711T2 DE69319711T DE69319711T DE69319711T2 DE 69319711 T2 DE69319711 T2 DE 69319711T2 DE 69319711 T DE69319711 T DE 69319711T DE 69319711 T DE69319711 T DE 69319711T DE 69319711 T2 DE69319711 T2 DE 69319711T2
- Authority
- DE
- Germany
- Prior art keywords
- mixture
- hydrogen fluoride
- liquid phase
- chlorofluoromethane
- azeotropic
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Fee Related
Links
- 238000000034 method Methods 0.000 title claims description 38
- PXGOKWXKJXAPGV-UHFFFAOYSA-N Fluorine Chemical compound FF PXGOKWXKJXAPGV-UHFFFAOYSA-N 0.000 title 1
- 229910052731 fluorine Inorganic materials 0.000 title 1
- 239000011737 fluorine Substances 0.000 title 1
- 239000000203 mixture Substances 0.000 claims description 201
- YMWUJEATGCHHMB-UHFFFAOYSA-N Dichloromethane Chemical compound ClCCl YMWUJEATGCHHMB-UHFFFAOYSA-N 0.000 claims description 178
- RWRIWBAIICGTTQ-UHFFFAOYSA-N difluoromethane Chemical compound FCF RWRIWBAIICGTTQ-UHFFFAOYSA-N 0.000 claims description 107
- 239000007791 liquid phase Substances 0.000 claims description 83
- 238000004821 distillation Methods 0.000 claims description 56
- KRHYYFGTRYWZRS-UHFFFAOYSA-N Fluorane Chemical compound F KRHYYFGTRYWZRS-UHFFFAOYSA-N 0.000 claims description 50
- 229910000040 hydrogen fluoride Inorganic materials 0.000 claims description 50
- XWCDCDSDNJVCLO-UHFFFAOYSA-N Chlorofluoromethane Chemical compound FCCl XWCDCDSDNJVCLO-UHFFFAOYSA-N 0.000 claims description 26
- 238000001816 cooling Methods 0.000 claims description 13
- ZZTJARSULYQEHS-UHFFFAOYSA-N n,n-diethylhexanamide Chemical compound CCCCCC(=O)N(CC)CC ZZTJARSULYQEHS-UHFFFAOYSA-N 0.000 description 132
- 238000010992 reflux Methods 0.000 description 37
- 239000007788 liquid Substances 0.000 description 23
- 238000000926 separation method Methods 0.000 description 20
- 239000000126 substance Substances 0.000 description 12
- 238000005191 phase separation Methods 0.000 description 10
- 238000009835 boiling Methods 0.000 description 9
- 239000012071 phase Substances 0.000 description 7
- 239000012808 vapor phase Substances 0.000 description 7
- 230000015572 biosynthetic process Effects 0.000 description 5
- VEXZGXHMUGYJMC-UHFFFAOYSA-N Hydrochloric acid Chemical compound Cl VEXZGXHMUGYJMC-UHFFFAOYSA-N 0.000 description 4
- 229910000041 hydrogen chloride Inorganic materials 0.000 description 4
- IXCSERBJSXMMFS-UHFFFAOYSA-N hydrogen chloride Substances Cl.Cl IXCSERBJSXMMFS-UHFFFAOYSA-N 0.000 description 4
- 238000006243 chemical reaction Methods 0.000 description 3
- 238000010586 diagram Methods 0.000 description 3
- 238000010438 heat treatment Methods 0.000 description 3
- 238000012856 packing Methods 0.000 description 3
- 230000006641 stabilisation Effects 0.000 description 3
- 238000011105 stabilization Methods 0.000 description 3
- 238000010533 azeotropic distillation Methods 0.000 description 2
- 239000003054 catalyst Substances 0.000 description 2
- 230000003247 decreasing effect Effects 0.000 description 2
- 238000003682 fluorination reaction Methods 0.000 description 2
- 238000005406 washing Methods 0.000 description 2
- VOPWNXZWBYDODV-UHFFFAOYSA-N Chlorodifluoromethane Chemical compound FC(F)Cl VOPWNXZWBYDODV-UHFFFAOYSA-N 0.000 description 1
- 239000003513 alkali Substances 0.000 description 1
- 239000008346 aqueous phase Substances 0.000 description 1
- 150000008280 chlorinated hydrocarbons Chemical class 0.000 description 1
- 150000001875 compounds Chemical group 0.000 description 1
- 239000012141 concentrate Substances 0.000 description 1
- 229920002313 fluoropolymer Polymers 0.000 description 1
- 238000007710 freezing Methods 0.000 description 1
- 230000008014 freezing Effects 0.000 description 1
- 230000005484 gravity Effects 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 238000006386 neutralization reaction Methods 0.000 description 1
- 150000002894 organic compounds Chemical class 0.000 description 1
- 238000000746 purification Methods 0.000 description 1
- 239000011541 reaction mixture Substances 0.000 description 1
- 239000003507 refrigerant Substances 0.000 description 1
- 229910001220 stainless steel Inorganic materials 0.000 description 1
- 239000010935 stainless steel Substances 0.000 description 1
- 239000007858 starting material Substances 0.000 description 1
- 239000002699 waste material Substances 0.000 description 1
Classifications
-
- C—CHEMISTRY; METALLURGY
- C07—ORGANIC CHEMISTRY
- C07C—ACYCLIC OR CARBOCYCLIC COMPOUNDS
- C07C19/00—Acyclic saturated compounds containing halogen atoms
- C07C19/08—Acyclic saturated compounds containing halogen atoms containing fluorine
- C07C19/10—Acyclic saturated compounds containing halogen atoms containing fluorine and chlorine
-
- C—CHEMISTRY; METALLURGY
- C01—INORGANIC CHEMISTRY
- C01B—NON-METALLIC ELEMENTS; COMPOUNDS THEREOF; METALLOIDS OR COMPOUNDS THEREOF NOT COVERED BY SUBCLASS C01C
- C01B7/00—Halogens; Halogen acids
- C01B7/19—Fluorine; Hydrogen fluoride
- C01B7/191—Hydrogen fluoride
- C01B7/195—Separation; Purification
- C01B7/196—Separation; Purification by distillation
-
- C—CHEMISTRY; METALLURGY
- C01—INORGANIC CHEMISTRY
- C01B—NON-METALLIC ELEMENTS; COMPOUNDS THEREOF; METALLOIDS OR COMPOUNDS THEREOF NOT COVERED BY SUBCLASS C01C
- C01B7/00—Halogens; Halogen acids
- C01B7/19—Fluorine; Hydrogen fluoride
- C01B7/191—Hydrogen fluoride
- C01B7/195—Separation; Purification
Landscapes
- Chemical & Material Sciences (AREA)
- Organic Chemistry (AREA)
- Inorganic Chemistry (AREA)
- Organic Low-Molecular-Weight Compounds And Preparation Thereof (AREA)
- Vaporization, Distillation, Condensation, Sublimation, And Cold Traps (AREA)
Applications Claiming Priority (3)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP9266792 | 1992-04-13 | ||
| JP10765692 | 1992-04-27 | ||
| PCT/JP1993/000455 WO1993021140A1 (en) | 1992-04-13 | 1993-04-09 | Method of removing hydrogen fluoride |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| DE69319711D1 DE69319711D1 (de) | 1998-08-20 |
| DE69319711T2 true DE69319711T2 (de) | 1999-01-07 |
Family
ID=26434051
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| DE69319711T Expired - Fee Related DE69319711T2 (de) | 1992-04-13 | 1993-04-09 | Verfahren zur entfernung von fluorwasserstoff |
Country Status (13)
| Country | Link |
|---|---|
| US (2) | US5523015A (en:Method) |
| EP (1) | EP0606482B1 (en:Method) |
| JP (1) | JP3147380B2 (en:Method) |
| KR (3) | KR100352680B1 (en:Method) |
| CN (1) | CN1039313C (en:Method) |
| AU (1) | AU663586B2 (en:Method) |
| BR (1) | BR9305484A (en:Method) |
| CA (1) | CA2111007C (en:Method) |
| DE (1) | DE69319711T2 (en:Method) |
| ES (1) | ES2118949T3 (en:Method) |
| RU (1) | RU2118635C1 (en:Method) |
| TW (1) | TW283659B (en:Method) |
| WO (1) | WO1993021140A1 (en:Method) |
Families Citing this family (24)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP3163831B2 (ja) * | 1993-04-06 | 2001-05-08 | ダイキン工業株式会社 | １，１−ジフルオロエタンとフッ化水素の共沸混合物および１，１−ジフルオロエタンまたはフッ化水素の回収方法 |
| GB9407257D0 (en) * | 1993-04-22 | 1994-06-08 | Ici Plc | Vaporisation of liquids |
| US6274781B1 (en) | 1993-11-01 | 2001-08-14 | E. I. Du Pont De Nemours And Company | Production of dihalomethanes containing fluorine and azeotropes of dihalomethanes containing chlorine with HF |
| DE69500938T2 (de) * | 1994-02-28 | 1998-04-30 | Atochem Elf Sa | Verfahren zur Trennung von Fluorwasserstoff und Difluormethan |
| US5718807A (en) * | 1994-09-20 | 1998-02-17 | E. I. Du Pont De Nemours And Company | Purification process for hexafluoroethane products |
| US5789633A (en) * | 1995-06-06 | 1998-08-04 | E. I. Du Pont De Nemours And Company | Azeotropic or azeotrope-like compositions of hydrofluoric acid with dihaloethanes |
| US5672788A (en) * | 1995-06-07 | 1997-09-30 | E. I. Du Pont De Nemours And Company | Two-step process for manufacturing 1,1-difluoroethane |
| US5714650A (en) * | 1995-06-07 | 1998-02-03 | E. I. Du Pont De Nemours And Company | Continuous manufacture of 1,1-difluoroethane |
| US5763708A (en) * | 1995-09-20 | 1998-06-09 | Allied Signal Inc. | Process for the production of difluoromethane |
| US5785822A (en) * | 1996-05-23 | 1998-07-28 | Alliedsignal Inc. | Process for separating difluoromethane |
| WO1998000379A1 (en) * | 1996-07-03 | 1998-01-08 | Alliedsignal Inc. | Water extraction of hydrogen fluoride from a halocarbon/hydrogen fluoride azeotropic mixture |
| CA2264686A1 (en) * | 1996-08-27 | 1998-03-05 | Daikin Industries, Ltd. | Process for producing difluoromethane |
| KR100551521B1 (ko) * | 1996-08-27 | 2006-02-13 | 다이낑 고오교 가부시키가이샤 | 디플루오로메탄의 제조 방법 |
| US5800682A (en) * | 1996-10-08 | 1998-09-01 | Alliedsignal Inc. | Process for the production of difluoromethane |
| FR2768717B1 (fr) * | 1997-09-24 | 1999-11-12 | Solvay | Procede de separation de fluorure d'hydrogene de ses melanges avec un hydrofluoroalcane contenant de 3 a 6 atomes de carbone |
| US6488817B1 (en) * | 1998-03-31 | 2002-12-03 | Alliedsignal Inc. | Purification of hydrofluorocarbons |
| EP1140747B1 (fr) * | 1998-12-18 | 2009-04-29 | SOLVAY (Société Anonyme) | Procede de separation d'un melange comprenant au moins un hydrofluoroalcane et du fluorure d'hydrogene, et procede de preparation d'un hydrofluroalcane |
| RU2174999C1 (ru) * | 2000-05-12 | 2001-10-20 | Общество с ограниченной ответственностью "Учебно-научно-производственная фирма "Липиды" | Способ рафинации труднорафинируемых растительных масел |
| US6500795B2 (en) * | 2001-01-24 | 2002-12-31 | Honeywell International Inc. | Azeotrope-like composition of 1-chloro-1,3,3,3-tetrafluoropropane and hydrogen fluoride |
| US6605193B2 (en) | 2001-04-25 | 2003-08-12 | Atofina Chemicals, Inc. | Recovery of HFC-32 |
| EP2093187A1 (en) * | 2001-06-01 | 2009-08-26 | Honeywell International Inc. | Process for the Removal of 1,1,1,3,3-Pentafluorobutane |
| ES2450945T3 (es) * | 2006-08-24 | 2014-03-25 | E. I. Du Pont De Nemours And Company | Procedimientos para la separación de fluoroolefinas a partir de fluoruro de hidrógeno por destilación azeotrópica |
| CN103626626B (zh) * | 2013-11-01 | 2015-06-24 | 西安近代化学研究所 | 氟化氢和2-氯-1,1,1,2-四氟丙烷混合物的分离方法 |
| GB2636765A (en) * | 2023-12-21 | 2025-07-02 | Mexichem Uk Ltd | Compositions |
Family Cites Families (19)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US2450414A (en) * | 1946-11-14 | 1948-10-05 | Kinetic Chemicals Inc | Distillation process for separating products of chloroform fluorination |
| US3490739A (en) * | 1965-09-16 | 1970-01-20 | Walter R Buckman | Azeotropic composition containing hexafluoroacetone,hydrogen fluoride,and trichlorotrifluoroethane |
| DE1546079B2 (de) * | 1965-12-22 | 1971-06-09 | Allied Chemical Corp.. New York, N Y (V St.A ) | Azeotropes loesungsmittelgemisch insbesondere zur entfernung eines harzflussmittels von gedruckten schaltungen |
| US3728268A (en) * | 1970-12-11 | 1973-04-17 | Du Pont | Mixtures of 1,1,2-trichloro-1,2,2-trifluoroethane,ethanol and acetone and a ternary azeotrope thereof |
| US3789004A (en) * | 1971-06-28 | 1974-01-29 | Ici Ltd | Solvent compositions |
| US3947558A (en) | 1973-08-16 | 1976-03-30 | Dow Chemical (Nederland) B.V. | Method of recovering HF from mixtures containing C1 -C3 halocarbon compounds |
| US4020112A (en) * | 1975-02-06 | 1977-04-26 | E. I. Du Pont De Nemours And Company | Oxidative fluorination of phenols |
| US4169807A (en) * | 1978-03-20 | 1979-10-02 | Rca Corporation | Novel solvent drying agent |
| JPS59225131A (ja) | 1983-06-06 | 1984-12-18 | Showa Denko Kk | ジフルオロメタンの製造方法 |
| JPS6013726A (ja) | 1983-07-04 | 1985-01-24 | Showa Denko Kk | フルオロメタンの製造方法 |
| US4911792A (en) * | 1988-08-01 | 1990-03-27 | E. I. Du Pont De Nemours And Company | Process for the separation of HF via phase separation and distillation |
| US4975156A (en) * | 1989-05-04 | 1990-12-04 | Atochem North America, Inc. | Process for the separation of hydrogen fluoride, 1,1-dichloro-1-fluoroethane and 1-chloro-1,1-difluoroethane from liquid mixtures thereof |
| US4950364A (en) * | 1989-05-04 | 1990-08-21 | Pennwalt Corporation | Process for the separation of 1,1-dichloro-1-fluoroethane and 1,1,1,3,3-pentafluorobutane |
| US5036036A (en) | 1989-06-13 | 1991-07-30 | E. I. Du Pont De Nemours And Company | Chromium oxide catalyst composition |
| AU6647690A (en) | 1989-10-04 | 1991-04-28 | E.I. Du Pont De Nemours And Company | Fluorocarbon purification process |
| GB9105407D0 (en) * | 1991-03-14 | 1991-05-01 | Ici Plc | Separation process |
| US5196616A (en) * | 1991-10-18 | 1993-03-23 | E. I. Du Pont De Nemours And Company | Process for separating and recovering fluorocarbons and hydrogen fluoride from mixtures thereof |
| US6274781B1 (en) | 1993-11-01 | 2001-08-14 | E. I. Du Pont De Nemours And Company | Production of dihalomethanes containing fluorine and azeotropes of dihalomethanes containing chlorine with HF |
| DE69500938T2 (de) * | 1994-02-28 | 1998-04-30 | Atochem Elf Sa | Verfahren zur Trennung von Fluorwasserstoff und Difluormethan |
-
1993
- 1993-04-09 US US08/162,010 patent/US5523015A/en not_active Expired - Lifetime
- 1993-04-09 KR KR1020017015229A patent/KR100352680B1/ko not_active Expired - Fee Related
- 1993-04-09 WO PCT/JP1993/000455 patent/WO1993021140A1/ja active Application Filing
- 1993-04-09 RU RU93058442A patent/RU2118635C1/ru not_active IP Right Cessation
- 1993-04-09 ES ES93908071T patent/ES2118949T3/es not_active Expired - Lifetime
- 1993-04-09 CA CA002111007A patent/CA2111007C/en not_active Expired - Fee Related
- 1993-04-09 KR KR1019930703863A patent/KR100295306B1/ko not_active Expired - Fee Related
- 1993-04-09 AU AU39040/93A patent/AU663586B2/en not_active Ceased
- 1993-04-09 EP EP93908071A patent/EP0606482B1/en not_active Expired - Lifetime
- 1993-04-09 BR BR9305484A patent/BR9305484A/pt not_active IP Right Cessation
- 1993-04-09 DE DE69319711T patent/DE69319711T2/de not_active Expired - Fee Related
- 1993-04-09 JP JP51817493A patent/JP3147380B2/ja not_active Expired - Fee Related
- 1993-04-09 KR KR10-1998-0702434A patent/KR100338277B1/ko not_active Expired - Fee Related
- 1993-04-13 TW TW082102792A patent/TW283659B/zh not_active IP Right Cessation
- 1993-04-13 CN CN93105703A patent/CN1039313C/zh not_active Expired - Lifetime
-
2000
- 2000-06-14 US US09/593,523 patent/US6311515B1/en not_active Expired - Fee Related
Also Published As
| Publication number | Publication date |
|---|---|
| EP0606482B1 (en) | 1998-07-15 |
| RU2118635C1 (ru) | 1998-09-10 |
| CN1039313C (zh) | 1998-07-29 |
| TW283659B (en:Method) | 1996-08-21 |
| KR100352680B1 (ko) | 2002-09-16 |
| AU663586B2 (en) | 1995-10-12 |
| KR940701373A (ko) | 1994-05-28 |
| CA2111007C (en) | 2004-08-03 |
| EP0606482A1 (en) | 1994-07-20 |
| CN1088195A (zh) | 1994-06-22 |
| ES2118949T3 (es) | 1998-10-01 |
| KR100338277B1 (ko) | 2003-02-20 |
| US6311515B1 (en) | 2001-11-06 |
| EP0606482A4 (en) | 1994-03-23 |
| US5523015A (en) | 1996-06-04 |
| DE69319711D1 (de) | 1998-08-20 |
| WO1993021140A1 (en) | 1993-10-28 |
| BR9305484A (pt) | 1995-04-11 |
| JP3147380B2 (ja) | 2001-03-19 |
| AU3904093A (en) | 1993-11-18 |
| KR100295306B1 (ko) | 2001-09-17 |
| CA2111007A1 (en) | 1993-10-28 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| 8363 | Opposition against the patent | ||
| 8365 | Fully valid after opposition proceedings | ||
| 8339 | Ceased/non-payment of the annual fee |