SG43281A1 - Process for removing olefinic impurities from fluorinated c3-c6-hydrocarbons - Google Patents
Process for removing olefinic impurities from fluorinated c3-c6-hydrocarbonsInfo
- Publication number
- SG43281A1 SG43281A1 SG1996006955A SG1996006955A SG43281A1 SG 43281 A1 SG43281 A1 SG 43281A1 SG 1996006955 A SG1996006955 A SG 1996006955A SG 1996006955 A SG1996006955 A SG 1996006955A SG 43281 A1 SG43281 A1 SG 43281A1
- Authority
- SG
- Singapore
- Prior art keywords
- hydrocarbons
- fluorinated
- olefinic impurities
- removing olefinic
- impurities
- Prior art date
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
- C07C17/395—Separation; Purification; Stabilisation; Use of additives by treatment giving rise to a chemical modification of at least one compound
Landscapes
- Chemical & Material Sciences (AREA)
- Organic Chemistry (AREA)
- Chemical Kinetics & Catalysis (AREA)
- General Chemical & Material Sciences (AREA)
- Organic Low-Molecular-Weight Compounds And Preparation Thereof (AREA)
- Production Of Liquid Hydrocarbon Mixture For Refining Petroleum (AREA)
Abstract
The invention relates to a process for the removal of olefinic impurities from fluorinated C3-C6-hydrocarbons, with the exception of 1,1,1,2,3,3,3-heptafluoropropane (R227), by bringing the contaminated fluorinated C3-C6-hydrocarbons into contact with an alcohol and a base and simultaneously or subsequently distilling off the fluorinated C3-C6-hydrocarbons.
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE4219414 | 1992-06-13 |
Publications (1)
Publication Number | Publication Date |
---|---|
SG43281A1 true SG43281A1 (en) | 1997-10-17 |
Family
ID=6460959
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
SG1996006955A SG43281A1 (en) | 1992-06-13 | 1993-05-27 | Process for removing olefinic impurities from fluorinated c3-c6-hydrocarbons |
Country Status (8)
Country | Link |
---|---|
EP (1) | EP0574756B1 (en) |
JP (1) | JP3332262B2 (en) |
AT (1) | ATE144971T1 (en) |
CA (1) | CA2098245C (en) |
DE (1) | DE59304392D1 (en) |
DK (1) | DK0574756T3 (en) |
ES (1) | ES2096141T3 (en) |
SG (1) | SG43281A1 (en) |
Families Citing this family (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
BR9402038A (en) * | 1993-05-25 | 1995-03-07 | Showa Denko Kk | Pentafluor ethane purification process |
US5470442A (en) * | 1994-03-11 | 1995-11-28 | E. I. Du Pont De Nemours And Company | Separating and removing impurities from tetrafluoroethanes by using extractive distillation |
US5723429A (en) * | 1994-03-11 | 1998-03-03 | E. I. Du Pont De Nemours And Company | Azeotropic or azeotrope-like compositions of tetrafluoroethane and chlorotetrafluoroethane |
WO1996023752A1 (en) * | 1995-02-01 | 1996-08-08 | E.I. Du Pont De Nemours And Company | SEPARATING AND REMOVING IMPURITIES FROM 1,1,1-TRIFLUOROETHANE (HFC-143a) BY USING EXTRACTIVE DISTILLATION |
CA2418856C (en) | 2000-08-10 | 2011-12-13 | Solvay (Societe Anonyme) | Process for obtaining a purified hydrofluoroalkane |
FR2812869A1 (en) * | 2000-08-10 | 2002-02-15 | Solvay | Preparation of purified hydrofluoroalkane involves subjecting hydrofluoroalkane containing (chloro)fluoro olefin impurities to purification treatment |
Family Cites Families (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE1219460B (en) * | 1963-11-07 | 1966-06-23 | Hoechst Ag | Process for the purification of 2, 2, 2-trifluoro-1-chloro-1-bromoethane, which contains 1, 1, 1, 4, 4, 4-hexafluoro-2, 3-dichlorobutene-2 as an impurity |
ATE108429T1 (en) * | 1988-11-22 | 1994-07-15 | Du Pont | PROCESS FOR PURIFICATION OF SATURATED HALCOCARBONS. |
US4973774A (en) * | 1989-11-02 | 1990-11-27 | E. I. Du Pont De Nemours And Company | Chlorofluorohydrocarbon purification process |
DE4115025A1 (en) * | 1991-05-08 | 1992-11-12 | Hoechst Ag | METHOD FOR REMOVING OLEFINIC IMPURITIES FROM 1,1,1,2,3,3,3-HEPTAFLUORPROPANE |
-
1993
- 1993-05-27 ES ES93108578T patent/ES2096141T3/en not_active Expired - Lifetime
- 1993-05-27 SG SG1996006955A patent/SG43281A1/en unknown
- 1993-05-27 AT AT93108578T patent/ATE144971T1/en not_active IP Right Cessation
- 1993-05-27 EP EP93108578A patent/EP0574756B1/en not_active Revoked
- 1993-05-27 DK DK93108578.1T patent/DK0574756T3/en active
- 1993-05-27 DE DE59304392T patent/DE59304392D1/en not_active Revoked
- 1993-06-10 JP JP13872593A patent/JP3332262B2/en not_active Expired - Fee Related
- 1993-06-11 CA CA002098245A patent/CA2098245C/en not_active Expired - Fee Related
Also Published As
Publication number | Publication date |
---|---|
ATE144971T1 (en) | 1996-11-15 |
EP0574756A1 (en) | 1993-12-22 |
EP0574756B1 (en) | 1996-11-06 |
CA2098245A1 (en) | 1993-12-14 |
JP3332262B2 (en) | 2002-10-07 |
DE59304392D1 (en) | 1996-12-12 |
DK0574756T3 (en) | 1997-04-14 |
JPH0665118A (en) | 1994-03-08 |
ES2096141T3 (en) | 1997-03-01 |
CA2098245C (en) | 2004-12-21 |
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