WO1999048872A2 - Verfahren zur abtrennung eines azepin-derivats aus einer mischung enthaltend ein amin und ein azepin-derivat - Google Patents
Verfahren zur abtrennung eines azepin-derivats aus einer mischung enthaltend ein amin und ein azepin-derivat Download PDFInfo
- Publication number
- WO1999048872A2 WO1999048872A2 PCT/EP1999/001786 EP9901786W WO9948872A2 WO 1999048872 A2 WO1999048872 A2 WO 1999048872A2 EP 9901786 W EP9901786 W EP 9901786W WO 9948872 A2 WO9948872 A2 WO 9948872A2
- Authority
- WO
- WIPO (PCT)
- Prior art keywords
- amine
- azepine derivative
- hmd
- distillation
- azepine
- 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.)
- Ceased
Links
Classifications
-
- C—CHEMISTRY; METALLURGY
- C07—ORGANIC CHEMISTRY
- C07D—HETEROCYCLIC COMPOUNDS
- C07D223/00—Heterocyclic compounds containing seven-membered rings having one nitrogen atom as the only ring hetero atom
- C07D223/02—Heterocyclic compounds containing seven-membered rings having one nitrogen atom as the only ring hetero atom not condensed with other rings
- C07D223/06—Heterocyclic compounds containing seven-membered rings having one nitrogen atom as the only ring hetero atom not condensed with other rings with hetero atoms or with carbon atoms having three bonds to hetero atoms with at the most one bond to halogen, e.g. ester or nitrile radicals, directly attached to ring carbon atoms
- C07D223/12—Nitrogen atoms not forming part of a nitro radical
-
- C—CHEMISTRY; METALLURGY
- C07—ORGANIC CHEMISTRY
- C07C—ACYCLIC OR CARBOCYCLIC COMPOUNDS
- C07C209/00—Preparation of compounds containing amino groups bound to a carbon skeleton
- C07C209/44—Preparation of compounds containing amino groups bound to a carbon skeleton by reduction of carboxylic acids or esters thereof in presence of ammonia or amines, or by reduction of nitriles, carboxylic acid amides, imines or imino-ethers
- C07C209/48—Preparation of compounds containing amino groups bound to a carbon skeleton by reduction of carboxylic acids or esters thereof in presence of ammonia or amines, or by reduction of nitriles, carboxylic acid amides, imines or imino-ethers by reduction of nitriles
-
- C—CHEMISTRY; METALLURGY
- C07—ORGANIC CHEMISTRY
- C07C—ACYCLIC OR CARBOCYCLIC COMPOUNDS
- C07C209/00—Preparation of compounds containing amino groups bound to a carbon skeleton
- C07C209/82—Purification; Separation; Stabilisation; Use of additives
- C07C209/86—Separation
-
- C—CHEMISTRY; METALLURGY
- C07—ORGANIC CHEMISTRY
- C07C—ACYCLIC OR CARBOCYCLIC COMPOUNDS
- C07C253/00—Preparation of carboxylic acid nitriles
- C07C253/32—Separation; Purification; Stabilisation; Use of additives
- C07C253/34—Separation; Purification
Definitions
- the present invention relates to a method for the distillative separation of part or all of an azepine derivative (III) selected from the group consisting of tetrahydroazepine, 2-aminoazepane, N- (2-azepano) -1, 6 -Diaminohexane and
- N- (2-azepano) -6-aminocapronitrile from a mixture (II) containing an azepine derivative (III) and an amine (I) selected from the group consisting of 6-aminocapronitrile and hexamethylenediamine, characterized in that the distillation at a head temperature of 160 to 250 ° C.
- Mixtures containing an amine and an azepine derivative are usually obtained in the hydrogenation of nitriles to amines.
- ADN adiponitrile
- HMD hexamethylenediamine
- ACN 6-aminocapronitrile
- azepine derivatives such as N- (2-azepano) -1, 6-diaminohexane and N- (2-azepano) -6-aminocapronitrile, especially 2-aminoazepane and tetrahydroazepine.
- GB-A-1 238 351 describes the separation of HMD from mixtures which contain HMD and azepine derivatives by adding akali hydroxide mixtures.
- Suitable amines I are aromatic amines such as benzylamine, aliphatic amines such as cyclic amines, for example isophoronediamine or preferably acyclic amines, for example 1,4-diaminobutane, in particular HMD or ACN, and mixtures thereof.
- Such amines can be prepared in a manner known per se.
- So HMD can be catalytic by partial or full
- Hydrogenation with a molecular hydrogen-containing gas from ADN to HMD or mixtures containing HMD and ACN can be obtained.
- the catalysts used in this hydrogenation are advantageously those based on a metal selected from the group consisting of ruthenium, rhodium, nickel, cobalt, preferably iron, the catalysts being able to contain further elements as promoters.
- a metal selected from the group consisting of ruthenium, rhodium, nickel, cobalt, preferably iron
- the catalysts being able to contain further elements as promoters.
- one or more, such as two, three, four or five elements selected from the group consisting of aluminum, silicon, zirconium, titanium and vanadium are particularly suitable as promoters.
- Such catalysts and the process conditions for the reaction mentioned are described, for example, in WO-A-96/20166, German Application 19 636 768.9 and German Application 19 646 436.
- the products obtained by the processes mentioned can then advantageously be rehydrogenated in the presence of catalysts based on noble metals, such as platinum, palladium or mixtures thereof, with gases containing molecular hydrogen.
- noble metals such as platinum, palladium or mixtures thereof
- 2-aminoazepan of the formula come as azepine derivatives III
- the azepine derivatives (III) can be present in the mixture (II) as individual compounds or as adducts, for example on one
- Amine (I) are present, these adducts also being referred to as azepine derivatives (III) for the purposes of the present invention.
- Such azepine derivatives and processes for their preparation are generally known.
- 2-aminoazepane, N- (2-azepano) -1, 6-diaminohexane and N- (2-azepano) -6-aminocapronitrile and tetrahydroazepine can be used in partial catalytic hydrogenation with a molecular hydrogen-containing gas from ADN to HMD or mixtures which contain HMD 5 and ACN, as a rule in amounts of 1 to 10000 ppm, based on the mixture, can be obtained in mixtures (II) by the processes described for the preparation of the amines (I).
- distillation is carried out at top temperatures of 160 to 10 250 ° C., preferably 175 to 230 ° C., in particular 185 to 220 ° C.
- the distillation pressure measured at the top of the distillation apparatus, should be 0 , 3 to 3 bar, preferably 0.5 to 2 bar, in particular 0.7 to 1.5 bar.
- Distillation at pressures in the range of the ambient pressure has the advantage that no atmospheric oxygen enters the distillation apparatus via leakage air.
- Oxygen can lead to the formation of an azepine derivative (III) from an amine (I), for example to the formation of THA from HMD.
- the distillation pressure measured at the top of the distillation apparatus, should be 0.1 to 1.3 bar, preferably 0.18 to 0.85 bar, 30 in particular 0.25 to 0, 65 bar.
- the distillation can be carried out in several, such as 2 or 3 columns, advantageously in a single column.
- the predominant part of azepine derivative (III) is usually obtained as the bottom product.
- This bottom product can advantageously be mixed with a compound containing at least one carbon-nitrogen multiple bond 45 (IV), such as ADN, and this mixture can be mixed in a manner known per se, for example according to those already mentioned for the preparation of HMD or mixtures containing HMD and ACN Method, subject to catalytic hydrogenation to give an amine (I) such as HMD or mixtures containing HMD and ACN.
- HMD and ACN are precursors for the production of technically important 5 polyamides, such as nylon 6 or nylon 6.6.
- THA means tetrahydroazepine.
- the product mixtures were analyzed by gas chromatography.
- the 15 amount of THA was determined polarographically at concentrations below 20 ppm.
- the overhead discharge collected over a period of 17 h in stationary operation contained 0.024% THA in addition to HMD. 1.7% THA was analyzed in the bottom discharge (13 g / h).
- Examples 2-4 and comparative examples 1 and 2 were carried out as in example 1, but with the parameters shown in table 1.
Landscapes
- Chemical & Material Sciences (AREA)
- Organic Chemistry (AREA)
- Organic Low-Molecular-Weight Compounds And Preparation Thereof (AREA)
- Polyamides (AREA)
- Vaporization, Distillation, Condensation, Sublimation, And Cold Traps (AREA)
- Other In-Based Heterocyclic Compounds (AREA)
Abstract
Description
Claims
Priority Applications (7)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| KR1020007010357A KR20010042021A (ko) | 1998-03-20 | 1999-03-18 | 아민 및 아제핀 유도체를 포함하는 혼합물로부터 아제핀유도체를 분리하는 방법 |
| EP99915652A EP1064266A2 (de) | 1998-03-20 | 1999-03-18 | Verfahren zur abtrennung eines azepin-derivats aus einer mischung enthaltend ein amin und ein azepin-derivat |
| JP2000537855A JP2002507602A (ja) | 1998-03-20 | 1999-03-18 | アミン及びアゼピン誘導体を含む混合物からのアゼピン誘導体の除去方法 |
| AU34146/99A AU3414699A (en) | 1998-03-20 | 1999-03-18 | Method for separating an azepine derivative from a mixture containing an amine and an azepine derivative |
| US09/623,699 US6300497B1 (en) | 1998-03-20 | 1999-03-18 | Method for separating an azepine derivative from a mixture containing an amine and an azepine derivative |
| CA002323617A CA2323617A1 (en) | 1998-03-20 | 1999-03-18 | Method for separating an azepine derivative from a mixture containing an amine and an azepine derivative |
| BR9908972-6A BR9908972A (pt) | 1998-03-20 | 1999-03-18 | Processo para a remoção por destilação de parte ou o todo de um derivado de azepina |
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DE19812427.9 | 1998-03-20 | ||
| DE19812427A DE19812427A1 (de) | 1998-03-20 | 1998-03-20 | Verfahren zur Abtrennung eines Azepin-Derivats aus einer Mischung enthaltend ein Amin und ein Azepin-Derivat |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| WO1999048872A2 true WO1999048872A2 (de) | 1999-09-30 |
| WO1999048872A3 WO1999048872A3 (de) | 1999-12-02 |
Family
ID=7861784
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| PCT/EP1999/001786 Ceased WO1999048872A2 (de) | 1998-03-20 | 1999-03-18 | Verfahren zur abtrennung eines azepin-derivats aus einer mischung enthaltend ein amin und ein azepin-derivat |
Country Status (13)
| Country | Link |
|---|---|
| US (1) | US6300497B1 (de) |
| EP (1) | EP1064266A2 (de) |
| JP (1) | JP2002507602A (de) |
| KR (1) | KR20010042021A (de) |
| CN (1) | CN1306514A (de) |
| AR (1) | AR015246A1 (de) |
| AU (1) | AU3414699A (de) |
| BR (1) | BR9908972A (de) |
| CA (1) | CA2323617A1 (de) |
| DE (1) | DE19812427A1 (de) |
| ID (1) | ID25865A (de) |
| TW (1) | TW474921B (de) |
| WO (1) | WO1999048872A2 (de) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2001064624A1 (de) * | 2000-02-29 | 2001-09-07 | Basf Aktiengesellschaft | Verfahren zur reduzierung des gehalts an einem ungesättigten imin in einer mischung enthaltend ein imin und ein amin |
| WO2001066514A1 (de) | 2000-03-08 | 2001-09-13 | Basf Aktiengesellschaft | Verfahren zur abtrennung eines azepin-derivats aus einer mischung enthaltend ein amin und ein azepin-derivat |
| WO2005028418A1 (en) * | 2003-09-15 | 2005-03-31 | Invista Technologies S.A.R.L. | Process for producing hexamethylenediamine and aminocapronitrile from adiponitrile, wherein the hexamethylenediamine contains less than 200 ppm tetrahydroazepine |
| CN104292112A (zh) * | 2014-10-16 | 2015-01-21 | 重庆紫光化工股份有限公司 | 一种异佛尔酮二胺产品的分离方法 |
Families Citing this family (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20020116644A1 (en) * | 2001-01-30 | 2002-08-22 | Galea Secured Networks Inc. | Adapter card for wirespeed security treatment of communications traffic |
| US6887352B2 (en) * | 2003-03-07 | 2005-05-03 | Invista North America S.A.R.L. | Distillative method for separating hexamethylenediamine from a mixture comprising hexamethylenediamine, 6-aminocapronitrile and tetrahydroazepine |
| US7094528B2 (en) * | 2004-06-30 | 2006-08-22 | Kimberly-Clark Worldwide, Inc. | Magnetic enzyme detection techniques |
| US7208632B2 (en) | 2004-09-10 | 2007-04-24 | Invista North America S.A R.L. | Separation of 6-aminocapronitrile and hexamethylenediamine from a mixture comprising hexamethylenediamine, 6-aminocapronitrile and tetrahydroazepine |
| US7468119B2 (en) | 2004-09-10 | 2008-12-23 | Invista North America S.A.R.L. | Separation of 6-aminocapronitrile and hexamethylenediamine from a mixture comprising hexamethylenediamine, 6-aminocapronitrile and tetrahydroazepine |
| FR2902425B1 (fr) * | 2006-06-20 | 2008-07-18 | Rhodia Recherches & Tech | Procede de fabrication de diamines primaires |
| FR2922207B1 (fr) * | 2007-10-11 | 2009-12-04 | Rhodia Operations | Procede de purification d'hexamethylene diamine |
| EP2060560B1 (de) * | 2007-11-14 | 2016-04-13 | Covestro Deutschland AG | Herstellung von hellfarbigen Isocyanaten |
Family Cites Families (15)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US2208598A (en) | 1938-09-24 | 1940-07-23 | Du Pont | Aliphatic amino-nitriles and process of producing them |
| DE848654C (de) | 1950-08-19 | 1952-09-08 | Basf Ag | Verfahren zur Herstellung von partiellen Hydrierungsprodukten des Adipinsaeuredinitrils |
| US2762835A (en) | 1953-03-12 | 1956-09-11 | Celanese Corp | Preparation of amino nitriles |
| GB893709A (en) | 1959-04-15 | 1962-04-11 | Chemstrand Corp | Method for the purification of hexamethylenediamine |
| US3193472A (en) | 1963-01-07 | 1965-07-06 | Monsanto Co | Process for the purification of hexamethylenediamine |
| GB1238351A (de) | 1968-01-17 | 1971-07-07 | ||
| CA915707A (en) | 1969-07-11 | 1972-11-28 | J. Kershaw Bernard | Hydrogenation of adiponitrile |
| US4601859A (en) | 1984-05-04 | 1986-07-22 | Allied Corporation | Selective hydrogenation of aliphatic dinitriles to omega-aminonitriles in ammonia with supported, finely dispersed rhodium-containing catalyst |
| US5151543A (en) | 1991-05-31 | 1992-09-29 | E. I. Du Pont De Nemours And Company | Selective low pressure hydrogenation of a dinitrile to an aminonitrile |
| US5153351A (en) * | 1992-01-06 | 1992-10-06 | E. I. Du Pont De Nemours And Company | Removal of tetrahydroazepine (tha) from 6-aminocapronitrile by reaction with reactive methylene compounds |
| US5162567A (en) | 1992-02-27 | 1992-11-10 | E. I. Du Pont De Nemours And Company | Purification of 6-aminocapronitrile |
| DE4235466A1 (de) | 1992-10-21 | 1994-04-28 | Bayer Ag | Verfahren zur Herstellung von (cyclo)aliphatischen Aminonitrilen |
| DE19500222A1 (de) | 1995-01-05 | 1996-07-11 | Basf Ag | Verfahren zur gleichzeitigen Herstellung von Caprolactam und Hexamethylendiamin |
| DE19548289A1 (de) | 1995-12-22 | 1997-06-26 | Basf Ag | Verfahren zur gleichzeitigen Herstellung von Caprolactam und Hexamethylendiamin |
| DE19704614A1 (de) | 1997-02-07 | 1998-08-13 | Basf Ag | Verfahren zur Abtrennnung eines Imins aus einer Mischung enthaltend ein Amin und ein Imin |
-
1998
- 1998-03-20 DE DE19812427A patent/DE19812427A1/de not_active Withdrawn
-
1999
- 1999-03-18 AU AU34146/99A patent/AU3414699A/en not_active Abandoned
- 1999-03-18 EP EP99915652A patent/EP1064266A2/de not_active Withdrawn
- 1999-03-18 CA CA002323617A patent/CA2323617A1/en not_active Abandoned
- 1999-03-18 BR BR9908972-6A patent/BR9908972A/pt not_active IP Right Cessation
- 1999-03-18 TW TW088104230A patent/TW474921B/zh active
- 1999-03-18 KR KR1020007010357A patent/KR20010042021A/ko not_active Withdrawn
- 1999-03-18 US US09/623,699 patent/US6300497B1/en not_active Expired - Fee Related
- 1999-03-18 WO PCT/EP1999/001786 patent/WO1999048872A2/de not_active Ceased
- 1999-03-18 CN CN99804242A patent/CN1306514A/zh active Pending
- 1999-03-18 ID IDW20001833A patent/ID25865A/id unknown
- 1999-03-18 JP JP2000537855A patent/JP2002507602A/ja not_active Withdrawn
- 1999-03-19 AR ARP990101214A patent/AR015246A1/es not_active Application Discontinuation
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2001064624A1 (de) * | 2000-02-29 | 2001-09-07 | Basf Aktiengesellschaft | Verfahren zur reduzierung des gehalts an einem ungesättigten imin in einer mischung enthaltend ein imin und ein amin |
| WO2001066514A1 (de) | 2000-03-08 | 2001-09-13 | Basf Aktiengesellschaft | Verfahren zur abtrennung eines azepin-derivats aus einer mischung enthaltend ein amin und ein azepin-derivat |
| WO2005028418A1 (en) * | 2003-09-15 | 2005-03-31 | Invista Technologies S.A.R.L. | Process for producing hexamethylenediamine and aminocapronitrile from adiponitrile, wherein the hexamethylenediamine contains less than 200 ppm tetrahydroazepine |
| CN104292112A (zh) * | 2014-10-16 | 2015-01-21 | 重庆紫光化工股份有限公司 | 一种异佛尔酮二胺产品的分离方法 |
Also Published As
| Publication number | Publication date |
|---|---|
| KR20010042021A (ko) | 2001-05-25 |
| WO1999048872A3 (de) | 1999-12-02 |
| AR015246A1 (es) | 2001-04-18 |
| US6300497B1 (en) | 2001-10-09 |
| AU3414699A (en) | 1999-10-18 |
| EP1064266A2 (de) | 2001-01-03 |
| BR9908972A (pt) | 2000-12-05 |
| ID25865A (id) | 2000-11-09 |
| DE19812427A1 (de) | 1999-09-23 |
| JP2002507602A (ja) | 2002-03-12 |
| TW474921B (en) | 2002-02-01 |
| CN1306514A (zh) | 2001-08-01 |
| CA2323617A1 (en) | 1999-09-30 |
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