CA2120921A1 - Improved process for separating and recovering fluorocarbons and hydrogen fluoride from mixtures thereof - Google Patents
Improved process for separating and recovering fluorocarbons and hydrogen fluoride from mixtures thereofInfo
- Publication number
- CA2120921A1 CA2120921A1 CA002120921A CA2120921A CA2120921A1 CA 2120921 A1 CA2120921 A1 CA 2120921A1 CA 002120921 A CA002120921 A CA 002120921A CA 2120921 A CA2120921 A CA 2120921A CA 2120921 A1 CA2120921 A1 CA 2120921A1
- Authority
- CA
- Canada
- Prior art keywords
- fluorocarbon
- hydrogen fluoride
- azeotrope
- mixture
- stream
- 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.)
- Abandoned
Links
- KRHYYFGTRYWZRS-UHFFFAOYSA-N Fluorane Chemical compound F KRHYYFGTRYWZRS-UHFFFAOYSA-N 0.000 title claims abstract description 185
- 229910000040 hydrogen fluoride Inorganic materials 0.000 title claims abstract description 181
- 239000000203 mixture Substances 0.000 title claims abstract description 116
- 238000000034 method Methods 0.000 title claims abstract description 47
- 230000008569 process Effects 0.000 title claims abstract description 40
- NBVXSUQYWXRMNV-UHFFFAOYSA-N fluoromethane Chemical compound FC NBVXSUQYWXRMNV-UHFFFAOYSA-N 0.000 claims abstract description 71
- 239000012528 membrane Substances 0.000 claims abstract description 62
- 239000012466 permeate Substances 0.000 claims abstract description 55
- 238000004821 distillation Methods 0.000 claims abstract description 47
- 239000012074 organic phase Substances 0.000 claims abstract description 15
- 239000012071 phase Substances 0.000 claims abstract description 10
- VOPWNXZWBYDODV-UHFFFAOYSA-N Chlorodifluoromethane Chemical compound FC(F)Cl VOPWNXZWBYDODV-UHFFFAOYSA-N 0.000 claims description 62
- BOUGCJDAQLKBQH-UHFFFAOYSA-N 1-chloro-1,2,2,2-tetrafluoroethane Chemical compound FC(Cl)C(F)(F)F BOUGCJDAQLKBQH-UHFFFAOYSA-N 0.000 claims description 17
- LVGUZGTVOIAKKC-UHFFFAOYSA-N 1,1,1,2-tetrafluoroethane Chemical compound FCC(F)(F)F LVGUZGTVOIAKKC-UHFFFAOYSA-N 0.000 claims description 11
- GTLACDSXYULKMZ-UHFFFAOYSA-N pentafluoroethane Chemical compound FC(F)C(F)(F)F GTLACDSXYULKMZ-UHFFFAOYSA-N 0.000 claims description 11
- RWRIWBAIICGTTQ-UHFFFAOYSA-N difluoromethane Chemical compound FCF RWRIWBAIICGTTQ-UHFFFAOYSA-N 0.000 claims description 9
- 238000000926 separation method Methods 0.000 description 31
- -1 hydrogen - Chemical class 0.000 description 14
- 150000001875 compounds Chemical class 0.000 description 12
- LYCAIKOWRPUZTN-UHFFFAOYSA-N Ethylene glycol Chemical compound OCCO LYCAIKOWRPUZTN-UHFFFAOYSA-N 0.000 description 10
- KRHYYFGTRYWZRS-UHFFFAOYSA-M Fluoride anion Chemical compound [F-] KRHYYFGTRYWZRS-UHFFFAOYSA-M 0.000 description 9
- BWHMMNNQKKPAPP-UHFFFAOYSA-L potassium carbonate Chemical compound [K+].[K+].[O-]C([O-])=O BWHMMNNQKKPAPP-UHFFFAOYSA-L 0.000 description 8
- QAOWNCQODCNURD-UHFFFAOYSA-N sulfuric acid Substances OS(O)(=O)=O QAOWNCQODCNURD-UHFFFAOYSA-N 0.000 description 8
- HEDRZPFGACZZDS-UHFFFAOYSA-N Chloroform Chemical compound ClC(Cl)Cl HEDRZPFGACZZDS-UHFFFAOYSA-N 0.000 description 6
- 238000006243 chemical reaction Methods 0.000 description 6
- 229920000557 Nafion® Polymers 0.000 description 5
- 229910052739 hydrogen Inorganic materials 0.000 description 5
- 239000001257 hydrogen Substances 0.000 description 5
- WGCNASOHLSPBMP-UHFFFAOYSA-N hydroxyacetaldehyde Natural products OCC=O WGCNASOHLSPBMP-UHFFFAOYSA-N 0.000 description 5
- 238000004519 manufacturing process Methods 0.000 description 5
- 239000002699 waste material Substances 0.000 description 5
- OHMHBGPWCHTMQE-UHFFFAOYSA-N 2,2-dichloro-1,1,1-trifluoroethane Chemical compound FC(F)(F)C(Cl)Cl OHMHBGPWCHTMQE-UHFFFAOYSA-N 0.000 description 4
- UFHFLCQGNIYNRP-UHFFFAOYSA-N Hydrogen Chemical compound [H][H] UFHFLCQGNIYNRP-UHFFFAOYSA-N 0.000 description 4
- 229910052731 fluorine Inorganic materials 0.000 description 4
- 229920002313 fluoropolymer Polymers 0.000 description 4
- 239000007788 liquid Substances 0.000 description 4
- 229910000027 potassium carbonate Inorganic materials 0.000 description 4
- 238000000746 purification Methods 0.000 description 4
- 238000011084 recovery Methods 0.000 description 4
- WXGNWUVNYMJENI-UHFFFAOYSA-N 1,1,2,2-tetrafluoroethane Chemical compound FC(F)C(F)F WXGNWUVNYMJENI-UHFFFAOYSA-N 0.000 description 3
- BAMUEXIPKSRTBS-UHFFFAOYSA-N 1,1-dichloro-1,2,2,2-tetrafluoroethane Chemical compound FC(F)(F)C(F)(Cl)Cl BAMUEXIPKSRTBS-UHFFFAOYSA-N 0.000 description 3
- DDMOUSALMHHKOS-UHFFFAOYSA-N 1,2-dichloro-1,1,2,2-tetrafluoroethane Chemical compound FC(F)(Cl)C(F)(F)Cl DDMOUSALMHHKOS-UHFFFAOYSA-N 0.000 description 3
- CYXIKYKBLDZZNW-UHFFFAOYSA-N 2-Chloro-1,1,1-trifluoroethane Chemical compound FC(F)(F)CCl CYXIKYKBLDZZNW-UHFFFAOYSA-N 0.000 description 3
- YCKRFDGAMUMZLT-UHFFFAOYSA-N Fluorine atom Chemical compound [F] YCKRFDGAMUMZLT-UHFFFAOYSA-N 0.000 description 3
- 239000003513 alkali Substances 0.000 description 3
- 238000009835 boiling Methods 0.000 description 3
- 239000003054 catalyst Substances 0.000 description 3
- NEHMKBQYUWJMIP-UHFFFAOYSA-N chloromethane Chemical compound ClC NEHMKBQYUWJMIP-UHFFFAOYSA-N 0.000 description 3
- 238000010924 continuous production Methods 0.000 description 3
- 239000011737 fluorine Substances 0.000 description 3
- 230000035699 permeability Effects 0.000 description 3
- 238000005191 phase separation Methods 0.000 description 3
- 229920000642 polymer Polymers 0.000 description 3
- 238000004064 recycling Methods 0.000 description 3
- 229910001220 stainless steel Inorganic materials 0.000 description 3
- 239000010935 stainless steel Substances 0.000 description 3
- JQZFYIGAYWLRCC-UHFFFAOYSA-N 1-chloro-1,1,2,2-tetrafluoroethane Chemical compound FC(F)C(F)(F)Cl JQZFYIGAYWLRCC-UHFFFAOYSA-N 0.000 description 2
- BHNZEZWIUMJCGF-UHFFFAOYSA-N 1-chloro-1,1-difluoroethane Chemical compound CC(F)(F)Cl BHNZEZWIUMJCGF-UHFFFAOYSA-N 0.000 description 2
- VEXZGXHMUGYJMC-UHFFFAOYSA-N Hydrochloric acid Chemical compound Cl VEXZGXHMUGYJMC-UHFFFAOYSA-N 0.000 description 2
- 230000002411 adverse Effects 0.000 description 2
- 230000008901 benefit Effects 0.000 description 2
- 230000015572 biosynthetic process Effects 0.000 description 2
- 125000004432 carbon atom Chemical group C* 0.000 description 2
- 230000015556 catabolic process Effects 0.000 description 2
- 230000008859 change Effects 0.000 description 2
- KYKAJFCTULSVSH-UHFFFAOYSA-N chloro(fluoro)methane Chemical compound F[C]Cl KYKAJFCTULSVSH-UHFFFAOYSA-N 0.000 description 2
- 229920001577 copolymer Polymers 0.000 description 2
- 238000006731 degradation reaction Methods 0.000 description 2
- 230000018044 dehydration Effects 0.000 description 2
- 238000006297 dehydration reaction Methods 0.000 description 2
- 150000008282 halocarbons Chemical class 0.000 description 2
- 229910000041 hydrogen chloride Inorganic materials 0.000 description 2
- IXCSERBJSXMMFS-UHFFFAOYSA-N hydrogen chloride Substances Cl.Cl IXCSERBJSXMMFS-UHFFFAOYSA-N 0.000 description 2
- KQNPFQTWMSNSAP-UHFFFAOYSA-N isobutyric acid Chemical compound CC(C)C(O)=O KQNPFQTWMSNSAP-UHFFFAOYSA-N 0.000 description 2
- 239000000463 material Substances 0.000 description 2
- 238000005371 permeation separation Methods 0.000 description 2
- 229920005597 polymer membrane Polymers 0.000 description 2
- 239000000047 product Substances 0.000 description 2
- 150000003839 salts Chemical class 0.000 description 2
- 125000000542 sulfonic acid group Chemical group 0.000 description 2
- BFKJFAAPBSQJPD-UHFFFAOYSA-N tetrafluoroethene Chemical group FC(F)=C(F)F BFKJFAAPBSQJPD-UHFFFAOYSA-N 0.000 description 2
- TXEYQDLBPFQVAA-UHFFFAOYSA-N tetrafluoromethane Chemical compound FC(F)(F)F TXEYQDLBPFQVAA-UHFFFAOYSA-N 0.000 description 2
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 2
- 229910017050 AsF3 Inorganic materials 0.000 description 1
- 239000004215 Carbon black (E152) Substances 0.000 description 1
- VEXZGXHMUGYJMC-UHFFFAOYSA-M Chloride anion Chemical compound [Cl-] VEXZGXHMUGYJMC-UHFFFAOYSA-M 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
- 239000004812 Fluorinated ethylene propylene Substances 0.000 description 1
- 239000004698 Polyethylene Substances 0.000 description 1
- 229910006069 SO3H Inorganic materials 0.000 description 1
- 229910000831 Steel Inorganic materials 0.000 description 1
- 238000004458 analytical method Methods 0.000 description 1
- 229910052787 antimony Inorganic materials 0.000 description 1
- JCMGUODNZMETBM-UHFFFAOYSA-N arsenic trifluoride Chemical compound F[As](F)F JCMGUODNZMETBM-UHFFFAOYSA-N 0.000 description 1
- 230000004888 barrier function Effects 0.000 description 1
- 239000006227 byproduct Substances 0.000 description 1
- 230000006315 carbonylation Effects 0.000 description 1
- 238000005810 carbonylation reaction Methods 0.000 description 1
- 230000003197 catalytic effect Effects 0.000 description 1
- 239000007795 chemical reaction product Substances 0.000 description 1
- 239000000356 contaminant Substances 0.000 description 1
- 239000008367 deionised water Substances 0.000 description 1
- 229910021641 deionized water Inorganic materials 0.000 description 1
- 238000009826 distribution Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000001704 evaporation Methods 0.000 description 1
- 230000008020 evaporation Effects 0.000 description 1
- 150000004673 fluoride salts Chemical class 0.000 description 1
- 238000003682 fluorination reaction Methods 0.000 description 1
- 125000001153 fluoro group Chemical group F* 0.000 description 1
- 239000004811 fluoropolymer Substances 0.000 description 1
- 239000007789 gas Substances 0.000 description 1
- 238000004817 gas chromatography Methods 0.000 description 1
- 150000004820 halides Chemical class 0.000 description 1
- 229910052736 halogen Inorganic materials 0.000 description 1
- 150000002367 halogens Chemical group 0.000 description 1
- 238000010438 heat treatment Methods 0.000 description 1
- 239000012510 hollow fiber Substances 0.000 description 1
- 229930195733 hydrocarbon Natural products 0.000 description 1
- 150000002430 hydrocarbons Chemical class 0.000 description 1
- 150000002431 hydrogen Chemical class 0.000 description 1
- 239000000543 intermediate Substances 0.000 description 1
- 239000007791 liquid phase Substances 0.000 description 1
- 229910001507 metal halide Inorganic materials 0.000 description 1
- 229910044991 metal oxide Inorganic materials 0.000 description 1
- 150000004706 metal oxides Chemical class 0.000 description 1
- 229920009441 perflouroethylene propylene Polymers 0.000 description 1
- 229920002493 poly(chlorotrifluoroethylene) Polymers 0.000 description 1
- 229920000573 polyethylene Polymers 0.000 description 1
- 229920006254 polymer film Polymers 0.000 description 1
- 229920001343 polytetrafluoroethylene Polymers 0.000 description 1
- 229920002981 polyvinylidene fluoride Polymers 0.000 description 1
- 229910052700 potassium Inorganic materials 0.000 description 1
- 239000011591 potassium Substances 0.000 description 1
- 238000002360 preparation method Methods 0.000 description 1
- 230000002035 prolonged effect Effects 0.000 description 1
- 101150002764 purA gene Proteins 0.000 description 1
- 239000000376 reactant Substances 0.000 description 1
- 230000035484 reaction time Effects 0.000 description 1
- 239000010959 steel Substances 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
- 125000000472 sulfonyl group Chemical group *S(*)(=O)=O 0.000 description 1
- VZGDMQKNWNREIO-UHFFFAOYSA-N tetrachloromethane Chemical compound ClC(Cl)(Cl)Cl VZGDMQKNWNREIO-UHFFFAOYSA-N 0.000 description 1
- 239000012808 vapor phase Substances 0.000 description 1
- 238000005406 washing Methods 0.000 description 1
Classifications
-
- 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
-
- C—CHEMISTRY; METALLURGY
- C07—ORGANIC CHEMISTRY
- C07C—ACYCLIC OR CARBOCYCLIC COMPOUNDS
- C07C17/00—Preparation of halogenated hydrocarbons
- C07C17/38—Separation; Purification; Stabilisation; Use of additives
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
- Y02P20/00—Technologies relating to chemical industry
- Y02P20/50—Improvements relating to the production of bulk chemicals
- Y02P20/582—Recycling of unreacted starting or intermediate materials
Landscapes
- Chemical & Material Sciences (AREA)
- Organic Chemistry (AREA)
- Inorganic Chemistry (AREA)
- Organic Low-Molecular-Weight Compounds And Preparation Thereof (AREA)
- Separation Using Semi-Permeable Membranes (AREA)
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| US07/779,534 US5196616A (en) | 1991-10-18 | 1991-10-18 | Process for separating and recovering fluorocarbons and hydrogen fluoride from mixtures thereof |
| US07/779,534 | 1991-10-18 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CA2120921A1 true CA2120921A1 (en) | 1993-04-29 |
Family
ID=25116752
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CA002120921A Abandoned CA2120921A1 (en) | 1991-10-18 | 1992-10-19 | Improved process for separating and recovering fluorocarbons and hydrogen fluoride from mixtures thereof |
Country Status (13)
Families Citing this family (37)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5458674A (en) * | 1993-08-24 | 1995-10-17 | E. I. Du Pont De Nemours And Company | Organic separation from HF |
| US5900044A (en) * | 1987-09-11 | 1999-05-04 | E. I. Du Pont De Nemours And Company | Organic separation from HF |
| JP3616828B2 (ja) * | 1991-03-06 | 2005-02-02 | ステラケミファ株式会社 | 希フッ化水素酸の供給方法及びこの方法に使用する希フッ化水素酸供給装置 |
| US5401430A (en) * | 1991-04-15 | 1995-03-28 | Daikin Industries, Ltd. | Azeotropic mixture of hydrogen fluoride and 1,1,1-trifluoro-2-chloroethane |
| CA2066017C (en) * | 1991-04-15 | 2002-07-02 | Takehide Tsuda | Azeotropic mixture of hydrogen fluoride and 1,1,1-trifluoro-2-chloroethane and process for purification of 1,1,1-trifluoro-2-chloroethane |
| US6676809B1 (en) * | 1992-02-07 | 2004-01-13 | Daikin Industries Ltd. | Process for removal of hydrogen fluoride |
| DE69319711T2 (de) * | 1992-04-13 | 1999-01-07 | Daikin Industries, Ltd., Osaka | Verfahren zur entfernung von fluorwasserstoff |
| US5456841A (en) * | 1992-08-03 | 1995-10-10 | E. I. Du Pont De Nemours And Company | Process for separating and recovering halocarbons from mixtures thereof |
| JPH06293674A (ja) * | 1993-04-06 | 1994-10-21 | Daikin Ind Ltd | ペンタフルオロエタンとフッ化水素の共沸混合物およびペンタフルオロエタンまたはフッ化水素の回収方法 |
| 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 |
| US6077819A (en) * | 1993-11-01 | 2000-06-20 | E. I. Du Pont De Nemours And Company | Azeotropes of chlorofluoroethanes of the formula CF3 CC12+x ub. F.s1-x with HF and manufacturing processes therewith |
| ES2110293T5 (es) * | 1994-02-28 | 2008-01-16 | Arkema France | Procedimiento para la separacion de fluoruro de hidrogeno y de difluormetano. |
| US5656137A (en) * | 1994-03-25 | 1997-08-12 | Elf Atochem North America, Inc. | F141B crude stabilization |
| WO1995032169A1 (en) * | 1994-05-19 | 1995-11-30 | E.I. Du Pont De Nemours And Company | Improved fluorocarbon recovery in hydrodehalogenation process |
| US5718807A (en) * | 1994-09-20 | 1998-02-17 | E. I. Du Pont De Nemours And Company | Purification process for hexafluoroethane products |
| US5858065A (en) * | 1995-07-17 | 1999-01-12 | American Air Liquide | Process and system for separation and recovery of perfluorocompound gases |
| US5785741A (en) | 1995-07-17 | 1998-07-28 | L'air Liquide, Societe Anonyme Pour L'etude Et L'exploitation Des Procedes Georges, Claude | Process and system for separation and recovery of perfluorocompound gases |
| US5858066A (en) * | 1995-09-22 | 1999-01-12 | E. I. Du Pont De Nemours And Company | Process for separating and recovering fluorocarbons and HCI from gaseous mixtures thereof |
| JP2933014B2 (ja) * | 1996-01-23 | 1999-08-09 | ダイキン工業株式会社 | ペンタフルオロプロパンとフッ化水素の共沸混合物およびペンタフルオロプロパンの分離精製方法 |
| US5766483A (en) * | 1996-05-10 | 1998-06-16 | Alliedsignal Inc. | Process for hydrogen fluoride separation |
| IE80909B1 (en) * | 1996-06-14 | 1999-06-16 | Air Liquide | An improved process and system for separation and recovery of perfluorocompound gases |
| US5895639A (en) * | 1996-07-03 | 1999-04-20 | Alliedsignal Inc. | Separation of hydrogen fluoride from a fluorocarbon/hydrogen fluoride azeotropic mixture by sulfuric acid |
| US5948381A (en) * | 1996-07-03 | 1999-09-07 | Alliedsignal Inc. | Process for separating fluorocarbon compounds |
| US6376727B1 (en) | 1997-06-16 | 2002-04-23 | E. I. Du Pont De Nemours And Company | Processes for the manufacture of 1,1,1,3,3-pentafluoropropene, 2-chloro-pentafluoropropene and compositions comprising saturated derivatives thereof |
| US5779763A (en) * | 1997-03-07 | 1998-07-14 | Membrane Technology And Research, Inc. | Process for recovering semiconductor industry cleaning compounds |
| US6224781B1 (en) * | 1997-08-25 | 2001-05-01 | E. I. Du Pont De Nemours And Company | Compositions comprising hydrofluorocarbons and their manufacture |
| US6107267A (en) * | 1997-08-25 | 2000-08-22 | E. I. Du Pont De Nemours And Company | Compositions comprising CF3 CF2 CHF2 and their manufacture |
| 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 |
| DE10115345A1 (de) * | 2001-03-28 | 2002-10-02 | Merck Patent Gmbh | Verfahren zur Aufreinigung von korrosiv wirkenden Gasen |
| ES2220248T3 (es) * | 2001-06-01 | 2009-07-15 | Honeywell International Inc. | Composiciones similares a las azeotopicas de 1,1,1,3,3-pentafluorobutano y fluoruro de hidrogeno. |
| US9309116B2 (en) * | 2011-09-26 | 2016-04-12 | Honeywell International Inc. | Method for producing high concentration aqueous HF solutions |
| MX2016000125A (es) | 2013-07-12 | 2016-05-31 | Arkema Inc | Metodo de separacion de compuestos organofluorados utilizando membrana. |
| CN103983736A (zh) * | 2014-05-20 | 2014-08-13 | 浙江大学 | 膜蒸馏技术作为样品前处理方法联用离子色谱技术用于复杂基质中氟离子的分析检测方法 |
| CN104817424B (zh) * | 2015-03-17 | 2017-01-18 | 中昊晨光化工研究院有限公司 | 一种从四氟乙烯产物中分离二氟甲烷的方法 |
| CN114684856B (zh) * | 2022-03-07 | 2024-01-23 | 中船(邯郸)派瑞特种气体股份有限公司 | 一种去除六氟化钨中氟化氢的方法及装置 |
| CN115806459A (zh) * | 2022-12-13 | 2023-03-17 | 山东新时代药业有限公司 | 一种从混合废溶剂中回收氟碳溶剂的纯化方法 |
| US20250197215A1 (en) * | 2023-12-19 | 2025-06-19 | Honeywell International Inc. | Methods for recovering hydrogen fluoride from a fluorocarbon production process |
Family Cites Families (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3947558A (en) * | 1973-08-16 | 1976-03-30 | Dow Chemical (Nederland) B.V. | Method of recovering HF from mixtures containing C1 -C3 halocarbon compounds |
| US4424067A (en) * | 1982-07-29 | 1984-01-03 | Allied Corporation | Purification of anhydrous hydrogen fluoride |
| US4661296A (en) * | 1982-09-13 | 1987-04-28 | Ashland Oil, Inc. | HF separation in a carbonylation process |
| JPS634806A (ja) * | 1986-06-26 | 1988-01-09 | Mitsubishi Heavy Ind Ltd | 溶剤の回収法 |
| 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 |
-
1991
- 1991-10-18 US US07/779,534 patent/US5196616A/en not_active Expired - Lifetime
-
1992
- 1992-10-06 TW TW081107941A patent/TW221987B/zh active
- 1992-10-16 AR AR92323444A patent/AR247543A1/es active
- 1992-10-16 MX MX9205962A patent/MX9205962A/es unknown
- 1992-10-17 CN CN92113089A patent/CN1075134A/zh active Pending
- 1992-10-19 CA CA002120921A patent/CA2120921A1/en not_active Abandoned
- 1992-10-19 JP JP50775693A patent/JP3162388B2/ja not_active Expired - Fee Related
- 1992-10-19 ES ES92921852T patent/ES2083196T3/es not_active Expired - Lifetime
- 1992-10-19 DE DE69207205T patent/DE69207205T2/de not_active Expired - Fee Related
- 1992-10-19 BR BR9206628A patent/BR9206628A/pt not_active Application Discontinuation
- 1992-10-19 WO PCT/US1992/008705 patent/WO1993008147A1/en active IP Right Grant
- 1992-10-19 EP EP92921852A patent/EP0609319B1/en not_active Expired - Lifetime
-
1996
- 1996-04-11 HK HK63796A patent/HK63796A/en not_active IP Right Cessation
Also Published As
| Publication number | Publication date |
|---|---|
| TW221987B (GUID-C5D7CC26-194C-43D0-91A1-9AE8C70A9BFF.html) | 1994-04-01 |
| EP0609319B1 (en) | 1995-12-27 |
| MX9205962A (es) | 1993-04-01 |
| ES2083196T3 (es) | 1996-04-01 |
| WO1993008147A1 (en) | 1993-04-29 |
| AR247543A1 (es) | 1995-01-31 |
| US5196616A (en) | 1993-03-23 |
| DE69207205T2 (de) | 1996-08-14 |
| CN1075134A (zh) | 1993-08-11 |
| EP0609319A1 (en) | 1994-08-10 |
| DE69207205D1 (de) | 1996-02-08 |
| BR9206628A (pt) | 1994-11-08 |
| JPH07500112A (ja) | 1995-01-05 |
| JP3162388B2 (ja) | 2001-04-25 |
| HK63796A (en) | 1996-04-19 |
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