ES2118479T3 - Procedimiento para la obtencion por destilacion de n-etilpiperazina. - Google Patents
Procedimiento para la obtencion por destilacion de n-etilpiperazina.Info
- Publication number
- ES2118479T3 ES2118479T3 ES95112162T ES95112162T ES2118479T3 ES 2118479 T3 ES2118479 T3 ES 2118479T3 ES 95112162 T ES95112162 T ES 95112162T ES 95112162 T ES95112162 T ES 95112162T ES 2118479 T3 ES2118479 T3 ES 2118479T3
- Authority
- ES
- Spain
- Prior art keywords
- etilpiperazina
- distillation
- procedure
- obtaining
- 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 - Lifetime
Links
Classifications
-
- C—CHEMISTRY; METALLURGY
- C07—ORGANIC CHEMISTRY
- C07D—HETEROCYCLIC COMPOUNDS
- C07D295/00—Heterocyclic compounds containing polymethylene-imine rings with at least five ring members, 3-azabicyclo [3.2.2] nonane, piperazine, morpholine or thiomorpholine rings, having only hydrogen atoms directly attached to the ring carbon atoms
- C07D295/02—Heterocyclic compounds containing polymethylene-imine rings with at least five ring members, 3-azabicyclo [3.2.2] nonane, piperazine, morpholine or thiomorpholine rings, having only hydrogen atoms directly attached to the ring carbon atoms containing only hydrogen and carbon atoms in addition to the ring hetero elements
- C07D295/027—Heterocyclic compounds containing polymethylene-imine rings with at least five ring members, 3-azabicyclo [3.2.2] nonane, piperazine, morpholine or thiomorpholine rings, having only hydrogen atoms directly attached to the ring carbon atoms containing only hydrogen and carbon atoms in addition to the ring hetero elements containing only one hetero ring
- C07D295/03—Heterocyclic compounds containing polymethylene-imine rings with at least five ring members, 3-azabicyclo [3.2.2] nonane, piperazine, morpholine or thiomorpholine rings, having only hydrogen atoms directly attached to the ring carbon atoms containing only hydrogen and carbon atoms in addition to the ring hetero elements containing only one hetero ring with the ring nitrogen atoms directly attached to acyclic carbon atoms
-
- C—CHEMISTRY; METALLURGY
- C07—ORGANIC CHEMISTRY
- C07D—HETEROCYCLIC COMPOUNDS
- C07D295/00—Heterocyclic compounds containing polymethylene-imine rings with at least five ring members, 3-azabicyclo [3.2.2] nonane, piperazine, morpholine or thiomorpholine rings, having only hydrogen atoms directly attached to the ring carbon atoms
- C07D295/02—Heterocyclic compounds containing polymethylene-imine rings with at least five ring members, 3-azabicyclo [3.2.2] nonane, piperazine, morpholine or thiomorpholine rings, having only hydrogen atoms directly attached to the ring carbon atoms containing only hydrogen and carbon atoms in addition to the ring hetero elements
- C07D295/023—Preparation; Separation; Stabilisation; Use of additives
Landscapes
- Chemical & Material Sciences (AREA)
- Organic Chemistry (AREA)
- Organic Low-Molecular-Weight Compounds And Preparation Thereof (AREA)
- Vaporization, Distillation, Condensation, Sublimation, And Cold Traps (AREA)
- Nitrogen Condensed Heterocyclic Rings (AREA)
- Pharmaceuticals Containing Other Organic And Inorganic Compounds (AREA)
Abstract
EN UN PROCESO PARA LA OBTENCION DESTILATIVA DE N ETILPIPERACINA A PARTIR DE MEZCLAS CON N,N'' - DIETILPIPERACINA, PIPERACINA, ETANOL, AGUA ASI COMO SUSTANCIAS DE ACOMPAÑAMIENTO, SE AÑADE AGUA DE TAL MODO, QUE EN EL LUGAR DE LA ADICION DE AGUA LA CONCENTRACION DE PIPERACINA ES MAYOR QUE LA CONCENTRACION DE N - ETILPIPERACINA. EL AGUA PUEDE SER AÑADIDA EN EL DESARROLLO DE RETORNO SOBRE EL CABEZAL DE LA COLUMNA.
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE4427511A DE4427511A1 (de) | 1994-08-03 | 1994-08-03 | Verfahren zur destillativen Gewinnung von N-Ethylpiperazin |
Publications (1)
Publication Number | Publication Date |
---|---|
ES2118479T3 true ES2118479T3 (es) | 1998-09-16 |
Family
ID=6524858
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
ES95112162T Expired - Lifetime ES2118479T3 (es) | 1994-08-03 | 1995-08-02 | Procedimiento para la obtencion por destilacion de n-etilpiperazina. |
Country Status (4)
Country | Link |
---|---|
US (1) | US5626724A (es) |
EP (1) | EP0695745B1 (es) |
DE (2) | DE4427511A1 (es) |
ES (1) | ES2118479T3 (es) |
Families Citing this family (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE102004038107A1 (de) * | 2004-08-05 | 2006-03-16 | Basf Ag | Verfahren zur Verbesserung der Farbstabilität von Piperazin |
Family Cites Families (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US3126383A (en) * | 1964-03-24 | Method for recovering alkylamine-free | ||
US3154552A (en) * | 1961-06-21 | 1964-10-27 | Wyandotte Chemicals Corp | Methylation of piperazines |
DE3440195A1 (de) * | 1984-11-03 | 1986-05-07 | Basf Ag, 6700 Ludwigshafen | Verfahren zur herstellung von 1-alkyl- oder 1-cycloalkylpiperazinen |
DE3725925A1 (de) * | 1987-08-05 | 1989-02-16 | Basf Ag | Verfahren zur gewinnung von n-ethylpiperazin |
-
1994
- 1994-08-03 DE DE4427511A patent/DE4427511A1/de not_active Withdrawn
-
1995
- 1995-08-02 US US08/510,562 patent/US5626724A/en not_active Expired - Lifetime
- 1995-08-02 DE DE59502743T patent/DE59502743D1/de not_active Expired - Lifetime
- 1995-08-02 ES ES95112162T patent/ES2118479T3/es not_active Expired - Lifetime
- 1995-08-02 EP EP95112162A patent/EP0695745B1/de not_active Expired - Lifetime
Also Published As
Publication number | Publication date |
---|---|
EP0695745A1 (de) | 1996-02-07 |
DE59502743D1 (de) | 1998-08-13 |
US5626724A (en) | 1997-05-06 |
DE4427511A1 (de) | 1996-02-08 |
EP0695745B1 (de) | 1998-07-08 |
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Legal Events
Date | Code | Title | Description |
---|---|---|---|
FG2A | Definitive protection |
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