BG101661A - Method of simultaneously preparing caprolactam and hexamethylene diamine - Google Patents
Method of simultaneously preparing caprolactam and hexamethylene diamineInfo
- Publication number
- BG101661A BG101661A BG101661A BG10166197A BG101661A BG 101661 A BG101661 A BG 101661A BG 101661 A BG101661 A BG 101661A BG 10166197 A BG10166197 A BG 10166197A BG 101661 A BG101661 A BG 101661A
- Authority
- BG
- Bulgaria
- Prior art keywords
- forerunnings
- mixture
- residue
- producing
- column
- Prior art date
Links
Classifications
-
- 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
- C07D—HETEROCYCLIC COMPOUNDS
- C07D201/00—Preparation, separation, purification or stabilisation of unsubstituted lactams
- C07D201/16—Separation or purification
-
- C—CHEMISTRY; METALLURGY
- C07—ORGANIC CHEMISTRY
- C07D—HETEROCYCLIC COMPOUNDS
- C07D201/00—Preparation, separation, purification or stabilisation of unsubstituted lactams
- C07D201/02—Preparation of lactams
- C07D201/08—Preparation of lactams from carboxylic acids or derivatives thereof, e.g. hydroxy carboxylic acids, lactones or nitriles
Landscapes
- Chemical & Material Sciences (AREA)
- Organic Chemistry (AREA)
- Organic Low-Molecular-Weight Compounds And Preparation Thereof (AREA)
- Low-Molecular Organic Synthesis Reactions Using Catalysts (AREA)
- Preparation Of Compounds By Using Micro-Organisms (AREA)
- Polyamides (AREA)
Abstract
The invention concerns the simultaneous preparation ofcaprolactam and hexamethylene diamine from adipodinitrile, by thefollowing steps: (a) the adipodinitrile is partially hydrogenated,producing a mixture substantially containing 6-aminocapronitrile,hexamethylene diamine, ammonia, adipodinitrile and hexamethyleneimine ( "the mixture"); (b) the mixture obtained in step (a) isdistilled, producing ammonia, as the forerunnings, and a residueI, in the presence of a compound A which is inert in thedistillation conditions, the ammonia not being separated totally;(c) the residue I, substantially containing 'the mixture", inertcompound A and ammonia, the ammonia content being less than thatof the mixture used in step (b), is subjected to a seconddistillation, producing a mixture of the inert compound A andammonia, as the forerunnings, and a residue II; (d) the base II,substantially containing "the mixture" and inert compound A, issubjected to distillation in a third column, producing the inertcompound A, as the forerunnings, and a residue III; (e) the baseIII, substantially containing "the mixture" and optionally aninert compound B, is subjected to distillation in a fourth column,producing forerunnings KP, which substantially containhexamethylene imine, optionally inert compound B and hexamethylenediamine, and a residue IV; (f) the forerunnings KP are subjectedin a fifth column to distillation, producing forerunnings KP2,which substantially contain hexamethylene imine and optionallyinert compound B, and a residue V, which substantially containshexamethylene diamine with a degree of purity of at least 95 %,the forerunnings KP2 being fed to the third column or optionallyonly partially fed to the third column, and the rest beingdiscarded; and (g) the residue IV, substantially containing6-aminocapronitrile and adipodinitrile, is subjected in a sixthcolumn to distillation, producing 6-aminocapronitrile with adegree of purity of at least 95 %, as forerunnings, andadiponitrile in the residue. The resultant 6-aminocapronitrile iscyclized to form caprolactam.
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DE19500222A DE19500222A1 (en) | 1995-01-05 | 1995-01-05 | Process for the simultaneous production of caprolactam and hexamethylenediamine |
| PCT/EP1995/005115 WO1996020931A1 (en) | 1995-01-05 | 1995-12-22 | Method of simultaneously preparing caprolactam and hexamethylene diamine |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| BG101661A true BG101661A (en) | 1998-02-27 |
| BG63431B1 BG63431B1 (en) | 2002-01-31 |
Family
ID=7751046
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| BG101661A BG63431B1 (en) | 1995-01-05 | 1997-06-24 | Method of simultaneously preparing caprolactam and hexamethylene diamine |
Country Status (18)
| Country | Link |
|---|---|
| EP (1) | EP0801647B1 (en) |
| JP (1) | JP3708549B2 (en) |
| KR (1) | KR100386706B1 (en) |
| CN (1) | CN1064353C (en) |
| AT (1) | ATE242217T1 (en) |
| AU (1) | AU4347396A (en) |
| BG (1) | BG63431B1 (en) |
| BR (1) | BR9510133A (en) |
| CZ (1) | CZ289886B6 (en) |
| DE (2) | DE19500222A1 (en) |
| ES (1) | ES2201127T3 (en) |
| FI (1) | FI972839A0 (en) |
| MY (1) | MY112196A (en) |
| PL (1) | PL187887B1 (en) |
| RU (1) | RU2153493C2 (en) |
| SK (1) | SK84297A3 (en) |
| TW (1) | TW340839B (en) |
| WO (1) | WO1996020931A1 (en) |
Families Citing this family (17)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE19636765A1 (en) * | 1996-09-10 | 1998-03-12 | Basf Ag | Process for the simultaneous production of 6-aminocapronitrile and hexamethylenediamine |
| DE19636766A1 (en) * | 1996-09-10 | 1998-03-12 | Basf Ag | Process for the simultaneous production of 6-aminocapronitrile and hexamethylenediamine |
| DE19704612A1 (en) * | 1997-02-07 | 1998-08-13 | Basf Ag | Process for obtaining hexamethylenediamine from mixtures containing hexamethylenediamine |
| DE19704620A1 (en) | 1997-02-07 | 1998-08-13 | Basf Ag | Process for the separation of 6-aminocapronitrile from mixtures containing 6-aminocapronitrile and an imine |
| DE19704614A1 (en) * | 1997-02-07 | 1998-08-13 | Basf Ag | Process for separating an imine from a mixture containing an amine and an imine |
| DE19704616A1 (en) * | 1997-02-07 | 1998-08-13 | Basf Ag | Process for the separation of 2-aminomethylcyclopentylamine from a mixture containing hexamethylenediamine and 2-aminomethylcyclopentylamine |
| DE19704613A1 (en) | 1997-02-07 | 1998-08-13 | Basf Ag | Process for the separation of 6-aminocapronitrile from mixtures containing 6-aminocapronitrile and an imine |
| DE19812427A1 (en) * | 1998-03-20 | 1999-09-23 | Basf Ag | Separation of azepine derivative for purification of amine, especially polyamide precursor |
| DE19842905A1 (en) * | 1998-09-18 | 2000-03-23 | Basf Ag | Simultaneous preparation of lactam and cyclic amine, useful e.g. as intermediates for plastics, pharmaceuticals or agrochemicals, by reacting diamine, aminonitrile and water over heterogeneous catalyst. |
| DE10010825A1 (en) * | 2000-03-08 | 2001-09-13 | Basf Ag | Separation of azepine derivative from amine, especially for purifying 6-aminocapronitrile or hexamethylenediamine, comprises distillation at low temperature |
| MY127068A (en) * | 2000-06-05 | 2006-11-30 | Basf Ag | Removal of ammonia from solutions including caprolactam and ammonia |
| DE10029187A1 (en) * | 2000-06-19 | 2001-12-20 | Basf Ag | Simplified low-energy separation of high-purity 6-aminocapronitrile from its mixtures with adiponitrile and hexamethylenediamine by a three-step distillative method |
| DE10223827A1 (en) | 2002-05-28 | 2003-12-11 | Basf Ag | Process for reducing the content of an unsaturated amine in a mixture containing an aminonitrile, a diamine, a dinitrile or mixtures thereof |
| 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 |
| FR2892118B1 (en) | 2005-10-18 | 2010-12-10 | Rhodia Recherches & Tech | PROCESS FOR PRODUCING HEXAMETHYLENE DIAMINE AND AMINOCAPRONITRILE |
| FR2902425B1 (en) * | 2006-06-20 | 2008-07-18 | Rhodia Recherches & Tech | PROCESS FOR PRODUCING PRIMARY DIAMINS |
| CN112876381B (en) * | 2021-04-14 | 2024-01-26 | 江苏扬农化工集团有限公司 | Simulated moving bed device and method for preparing 6-aminocapronitrile by gas phase method |
Family Cites Families (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE954416C (en) * | 1952-11-04 | 1956-12-20 | Basf Ag | Process for the production of aminonitriles and diamines |
| GB1179706A (en) * | 1966-07-22 | 1970-01-28 | Ici Ltd | Organic Amines |
| DE2606364C3 (en) * | 1976-02-18 | 1988-05-26 | Basf Ag, 6700 Ludwigshafen | Process for separating substances from a liquid mixture by fractional crystallization |
-
1995
- 1995-01-05 DE DE19500222A patent/DE19500222A1/en not_active Withdrawn
- 1995-02-09 TW TW084101079A patent/TW340839B/en active
- 1995-12-20 MY MYPI95003990A patent/MY112196A/en unknown
- 1995-12-22 WO PCT/EP1995/005115 patent/WO1996020931A1/en active IP Right Grant
- 1995-12-22 CZ CZ19972027A patent/CZ289886B6/en not_active IP Right Cessation
- 1995-12-22 RU RU97113741/04A patent/RU2153493C2/en not_active IP Right Cessation
- 1995-12-22 BR BR9510133A patent/BR9510133A/en not_active IP Right Cessation
- 1995-12-22 AU AU43473/96A patent/AU4347396A/en not_active Abandoned
- 1995-12-22 ES ES95942198T patent/ES2201127T3/en not_active Expired - Lifetime
- 1995-12-22 DE DE59510717T patent/DE59510717D1/en not_active Expired - Fee Related
- 1995-12-22 SK SK842-97A patent/SK84297A3/en unknown
- 1995-12-22 CN CN95197256A patent/CN1064353C/en not_active Expired - Fee Related
- 1995-12-22 KR KR1019970704616A patent/KR100386706B1/en not_active IP Right Cessation
- 1995-12-22 JP JP52005596A patent/JP3708549B2/en not_active Expired - Fee Related
- 1995-12-22 EP EP95942198A patent/EP0801647B1/en not_active Expired - Lifetime
- 1995-12-22 AT AT95942198T patent/ATE242217T1/en not_active IP Right Cessation
- 1995-12-22 PL PL32126795A patent/PL187887B1/en not_active IP Right Cessation
-
1997
- 1997-06-24 BG BG101661A patent/BG63431B1/en unknown
- 1997-07-02 FI FI972839A patent/FI972839A0/en not_active IP Right Cessation
Also Published As
| Publication number | Publication date |
|---|---|
| CN1171782A (en) | 1998-01-28 |
| WO1996020931A1 (en) | 1996-07-11 |
| BG63431B1 (en) | 2002-01-31 |
| CZ202797A3 (en) | 1998-02-18 |
| SK84297A3 (en) | 1998-03-04 |
| DE59510717D1 (en) | 2003-07-10 |
| FI972839A (en) | 1997-07-02 |
| EP0801647A1 (en) | 1997-10-22 |
| AU4347396A (en) | 1996-07-24 |
| EP0801647B1 (en) | 2003-06-04 |
| MX9704863A (en) | 1997-10-31 |
| JP3708549B2 (en) | 2005-10-19 |
| CZ289886B6 (en) | 2002-04-17 |
| JPH10511361A (en) | 1998-11-04 |
| ES2201127T3 (en) | 2004-03-16 |
| KR19980701227A (en) | 1998-05-15 |
| MY112196A (en) | 2001-04-30 |
| BR9510133A (en) | 1997-12-30 |
| DE19500222A1 (en) | 1996-07-11 |
| CN1064353C (en) | 2001-04-11 |
| ATE242217T1 (en) | 2003-06-15 |
| PL187887B1 (en) | 2004-10-29 |
| FI972839A0 (en) | 1997-07-02 |
| PL321267A1 (en) | 1997-11-24 |
| TW340839B (en) | 1998-09-21 |
| KR100386706B1 (en) | 2003-08-21 |
| RU2153493C2 (en) | 2000-07-27 |
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