DE60201131D1 - Trennung von 2,5-dihydrofuran und wasser aus ihren mischungen durch extractivdestillation - Google Patents
Trennung von 2,5-dihydrofuran und wasser aus ihren mischungen durch extractivdestillationInfo
- Publication number
- DE60201131D1 DE60201131D1 DE60201131T DE60201131T DE60201131D1 DE 60201131 D1 DE60201131 D1 DE 60201131D1 DE 60201131 T DE60201131 T DE 60201131T DE 60201131 T DE60201131 T DE 60201131T DE 60201131 D1 DE60201131 D1 DE 60201131D1
- Authority
- DE
- Germany
- Prior art keywords
- dihydrofuran
- extractive distillation
- mixtures
- separation
- water
- 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
Classifications
-
- C—CHEMISTRY; METALLURGY
- C07—ORGANIC CHEMISTRY
- C07D—HETEROCYCLIC COMPOUNDS
- C07D307/00—Heterocyclic compounds containing five-membered rings having one oxygen atom as the only ring hetero atom
- C07D307/02—Heterocyclic compounds containing five-membered rings having one oxygen atom as the only ring hetero atom not condensed with other rings
- C07D307/26—Heterocyclic compounds containing five-membered rings having one oxygen atom as the only ring hetero atom not condensed with other rings having one double bond between ring members or between a ring member and a non-ring member
- C07D307/28—Heterocyclic compounds containing five-membered rings having one oxygen atom as the only ring hetero atom not condensed with other rings having one double bond between ring members or between a ring member and a non-ring member with only hydrogen atoms, hydrocarbon or substituted hydrocarbon radicals, directly attached to ring carbon atoms
Landscapes
- Chemical & Material Sciences (AREA)
- Organic Chemistry (AREA)
- Vaporization, Distillation, Condensation, Sublimation, And Cold Traps (AREA)
- Organic Low-Molecular-Weight Compounds And Preparation Thereof (AREA)
- Furan Compounds (AREA)
Applications Claiming Priority (3)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US791055 | 2001-02-22 | ||
US09/791,055 US6353121B1 (en) | 2001-02-22 | 2001-02-22 | Separation of 2,5-dihydrofuran from water by extractive distillation |
PCT/US2002/004367 WO2002068402A2 (en) | 2001-02-22 | 2002-02-14 | Separation of 2,5-dihydrofuran and water from mixtures thereof by extractive distillation |
Publications (2)
Publication Number | Publication Date |
---|---|
DE60201131D1 true DE60201131D1 (de) | 2004-10-07 |
DE60201131T2 DE60201131T2 (de) | 2005-09-01 |
Family
ID=25152542
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
DE60201131T Expired - Fee Related DE60201131T2 (de) | 2001-02-22 | 2002-02-14 | Trennung von 2,5-dihydrofuran und wasser aus ihren mischungen durch extractivdestillation |
Country Status (5)
Country | Link |
---|---|
US (1) | US6353121B1 (de) |
EP (1) | EP1383755B1 (de) |
AT (1) | ATE275138T1 (de) |
DE (1) | DE60201131T2 (de) |
WO (1) | WO2002068402A2 (de) |
Family Cites Families (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US3165536A (en) | 1965-01-12 | Certificate of correction | ||
GB510949A (de) | ||||
GB510365A (en) | 1937-02-20 | 1939-08-01 | Voldemar Borsakovsky | Improvements in or relating to the preparation of whole meal and products obtained therefrom |
US3812158A (en) | 1970-12-17 | 1974-05-21 | Petro Tex Chem Corp | Preparation of dihydrofuran from 3,4-epoxy-1-butene,3,4-dihydroxy-1-butene,or 1,4-dihydroxy-2-butene |
US4231941A (en) | 1979-06-25 | 1980-11-04 | E. I. Du Pont De Nemours And Company | Synthesis of 2,5-dihydrofuran |
US4636284A (en) * | 1984-05-18 | 1987-01-13 | English John C | Process for the separation of water from a water-containing mixture or azeotrope with an extractant, and for the separation of water from said extractant |
-
2001
- 2001-02-22 US US09/791,055 patent/US6353121B1/en not_active Expired - Fee Related
-
2002
- 2002-02-14 AT AT02717429T patent/ATE275138T1/de not_active IP Right Cessation
- 2002-02-14 DE DE60201131T patent/DE60201131T2/de not_active Expired - Fee Related
- 2002-02-14 EP EP02717429A patent/EP1383755B1/de not_active Expired - Lifetime
- 2002-02-14 WO PCT/US2002/004367 patent/WO2002068402A2/en not_active Application Discontinuation
Also Published As
Publication number | Publication date |
---|---|
ATE275138T1 (de) | 2004-09-15 |
EP1383755A2 (de) | 2004-01-28 |
DE60201131T2 (de) | 2005-09-01 |
WO2002068402A3 (en) | 2003-01-23 |
EP1383755B1 (de) | 2004-09-01 |
WO2002068402A2 (en) | 2002-09-06 |
US6353121B1 (en) | 2002-03-05 |
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Legal Events
Date | Code | Title | Description |
---|---|---|---|
8364 | No opposition during term of opposition | ||
8339 | Ceased/non-payment of the annual fee |