DE69520357T2 - Verfahren zur reinigung von pentafluorethan - Google Patents
Verfahren zur reinigung von pentafluorethanInfo
- Publication number
- DE69520357T2 DE69520357T2 DE69520357T DE69520357T DE69520357T2 DE 69520357 T2 DE69520357 T2 DE 69520357T2 DE 69520357 T DE69520357 T DE 69520357T DE 69520357 T DE69520357 T DE 69520357T DE 69520357 T2 DE69520357 T2 DE 69520357T2
- Authority
- DE
- Germany
- Prior art keywords
- pentafluoroethane
- chloropentafluoroethane
- pct
- pentafluorethane
- purifying
- 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 - Lifetime
Links
Classifications
-
- 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
- C07C17/383—Separation; Purification; Stabilisation; Use of additives by distillation
- C07C17/386—Separation; Purification; Stabilisation; Use of additives by distillation with auxiliary compounds
Landscapes
- Chemical & Material Sciences (AREA)
- Organic Chemistry (AREA)
- Organic Low-Molecular-Weight Compounds And Preparation Thereof (AREA)
Applications Claiming Priority (4)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
GB9406961A GB9406961D0 (en) | 1994-04-08 | 1994-04-08 | Process for the purification of pentafluoroethane |
GB9417868A GB9417868D0 (en) | 1994-09-06 | 1994-09-06 | Process for the purification of pentafluoroethane |
GB9420510A GB9420510D0 (en) | 1994-10-11 | 1994-10-11 | Process for the purification of pentafluoroethane |
PCT/GB1995/000672 WO1995027689A1 (en) | 1994-04-08 | 1995-03-27 | Process for the purification of pentafluoroethane |
Publications (2)
Publication Number | Publication Date |
---|---|
DE69520357D1 DE69520357D1 (de) | 2001-04-19 |
DE69520357T2 true DE69520357T2 (de) | 2001-06-28 |
Family
ID=27267142
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
DE69520357T Expired - Lifetime DE69520357T2 (de) | 1994-04-08 | 1995-03-27 | Verfahren zur reinigung von pentafluorethan |
Country Status (9)
Country | Link |
---|---|
US (1) | US5928479A (de) |
EP (1) | EP0754171B1 (de) |
JP (1) | JP3856820B2 (de) |
AT (1) | ATE199705T1 (de) |
DE (1) | DE69520357T2 (de) |
ES (1) | ES2156939T3 (de) |
GR (1) | GR3036030T3 (de) |
PT (1) | PT754171E (de) |
WO (1) | WO1995027689A1 (de) |
Families Citing this family (9)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
ATE177417T1 (de) * | 1993-04-30 | 1999-03-15 | Du Pont | Azeotrope und azeotropartige zusammensetzungen und verfahren zur trennung von hcl und halogenkohlenwasserstoffen |
US5718807A (en) * | 1994-09-20 | 1998-02-17 | E. I. Du Pont De Nemours And Company | Purification process for hexafluoroethane products |
ES2183964T3 (es) * | 1995-07-14 | 2003-04-01 | Du Pont | Proceso de destilacion para recuperar hfc-125 y hfc-32. |
AU4752097A (en) * | 1996-10-10 | 1998-05-05 | Allied-Signal Inc. | Process for separating pentafluoroethane and chloropentafluoroethane |
AU8647398A (en) | 1997-08-21 | 1999-03-16 | Daikin Industries, Ltd. | Process for preparing pentafluoroethane |
EP1027313A1 (de) * | 1997-10-17 | 2000-08-16 | E.I. Du Pont De Nemours And Company | Abtrennung von 1,1,1,3,3-pentafluorpropan von fluorwasserstoff |
US7189311B2 (en) * | 2001-03-23 | 2007-03-13 | Honeywell International Inc. | Purification of difluoromethane |
US7060165B2 (en) | 2002-02-14 | 2006-06-13 | Pcbu Services, Inc. | Processes for purification and production of fluorocarbons |
US7273835B2 (en) * | 2004-08-04 | 2007-09-25 | Honeywell International Inc. | Azeotrope-like compositions of difluoromethane |
Family Cites Families (11)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US3732150A (en) * | 1971-10-22 | 1973-05-08 | Phillips Petroleum Co | Process for separating halogenated hydrocarbons by azeotropic distillation with ammonia |
US4843181A (en) * | 1987-10-22 | 1989-06-27 | E. I. Du Pont De Nemours And Company | Process for the manufacture of 1,1,1-trifluorodichloroethane and 1,1,1,2-tetrafluorochloroethane |
US5087329A (en) * | 1991-05-16 | 1992-02-11 | E. I. Du Pont De Nemours And Company | Process for separating pentafluoroethane from a mixture of halogenated hydrocarbons containing chloropentafluoroethane |
IT1252659B (it) * | 1991-12-23 | 1995-06-20 | Ausimont Spa | Procedimento per la depurazione dell'1,1,1-trifluoro-2-fluoroetano e dell'1,1,1-trifluoro-2,2-dicloroetano |
US5346595A (en) * | 1993-02-23 | 1994-09-13 | Alliedsignal Inc. | Process for the purification of a pentafluoroethane azeotrope |
FR2701943B1 (fr) * | 1993-02-24 | 1995-05-12 | Atochem Elf Sa | Purification du pentafluoroéthane. |
US5585529A (en) * | 1993-04-06 | 1996-12-17 | E. I. Du Pont De Nemours And Company | Separation of chloropentafluoroethane from pentafluoroethane |
ATE177417T1 (de) * | 1993-04-30 | 1999-03-15 | Du Pont | Azeotrope und azeotropartige zusammensetzungen und verfahren zur trennung von hcl und halogenkohlenwasserstoffen |
US5421964A (en) * | 1993-04-30 | 1995-06-06 | E. I. Du Pont De Nemours And Company | Process for separating HCl and halocarbons |
AU684757B2 (en) * | 1993-05-25 | 1998-01-08 | Showa Denko Kabushiki Kaisha | Purification process of pentafluoroethane |
JP3262454B2 (ja) * | 1993-05-25 | 2002-03-04 | 昭和電工株式会社 | ペンタフルオロエタンの精製方法 |
-
1995
- 1995-03-27 JP JP52595295A patent/JP3856820B2/ja not_active Expired - Lifetime
- 1995-03-27 WO PCT/GB1995/000672 patent/WO1995027689A1/en active IP Right Grant
- 1995-03-27 DE DE69520357T patent/DE69520357T2/de not_active Expired - Lifetime
- 1995-03-27 AT AT95912358T patent/ATE199705T1/de not_active IP Right Cessation
- 1995-03-27 US US08/716,370 patent/US5928479A/en not_active Expired - Lifetime
- 1995-03-27 ES ES95912358T patent/ES2156939T3/es not_active Expired - Lifetime
- 1995-03-27 PT PT95912358T patent/PT754171E/pt unknown
- 1995-03-27 EP EP95912358A patent/EP0754171B1/de not_active Expired - Lifetime
-
2001
- 2001-06-13 GR GR20010400883T patent/GR3036030T3/el not_active IP Right Cessation
Also Published As
Publication number | Publication date |
---|---|
ES2156939T3 (es) | 2001-08-01 |
EP0754171B1 (de) | 2001-03-14 |
JPH09512793A (ja) | 1997-12-22 |
PT754171E (pt) | 2001-07-31 |
ATE199705T1 (de) | 2001-03-15 |
GR3036030T3 (en) | 2001-09-28 |
JP3856820B2 (ja) | 2006-12-13 |
US5928479A (en) | 1999-07-27 |
WO1995027689A1 (en) | 1995-10-19 |
EP0754171A1 (de) | 1997-01-22 |
DE69520357D1 (de) | 2001-04-19 |
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Legal Events
Date | Code | Title | Description |
---|---|---|---|
8327 | Change in the person/name/address of the patent owner |
Owner name: INEOS FLUOR HOLDINGS LTD., SOUTHAMPTON, HAMPSHIRE, |
|
8364 | No opposition during term of opposition |