ZA744054B - Process for recovery of epsilon-carprolactam from a reaction mixture of epsilon-caprolactam and sulphuric acid - Google Patents
Process for recovery of epsilon-carprolactam from a reaction mixture of epsilon-caprolactam and sulphuric acidInfo
- Publication number
- ZA744054B ZA744054B ZA00744054A ZA744054A ZA744054B ZA 744054 B ZA744054 B ZA 744054B ZA 00744054 A ZA00744054 A ZA 00744054A ZA 744054 A ZA744054 A ZA 744054A ZA 744054 B ZA744054 B ZA 744054B
- Authority
- ZA
- South Africa
- Prior art keywords
- epsilon
- carprolactam
- caprolactam
- recovery
- reaction mixture
- Prior art date
Links
- JBKVHLHDHHXQEQ-UHFFFAOYSA-N epsilon-caprolactam Chemical compound O=C1CCCCCN1 JBKVHLHDHHXQEQ-UHFFFAOYSA-N 0.000 title 2
- QAOWNCQODCNURD-UHFFFAOYSA-N Sulfuric acid Chemical compound OS(O)(=O)=O QAOWNCQODCNURD-UHFFFAOYSA-N 0.000 title 1
- 238000000034 method Methods 0.000 title 1
- 239000011541 reaction mixture Substances 0.000 title 1
- 238000011084 recovery Methods 0.000 title 1
- 235000011149 sulphuric acid Nutrition 0.000 title 1
- 239000001117 sulphuric acid Substances 0.000 title 1
Classifications
-
- C—CHEMISTRY; METALLURGY
- C07—ORGANIC CHEMISTRY
- C07D—HETEROCYCLIC COMPOUNDS
- C07D201/00—Preparation, separation, purification or stabilisation of unsubstituted lactams
- C07D201/16—Separation or purification
-
- E—FIXED CONSTRUCTIONS
- E05—LOCKS; KEYS; WINDOW OR DOOR FITTINGS; SAFES
- E05Y—INDEXING SCHEME ASSOCIATED WITH SUBCLASSES E05D AND E05F, RELATING TO CONSTRUCTION ELEMENTS, ELECTRIC CONTROL, POWER SUPPLY, POWER SIGNAL OR TRANSMISSION, USER INTERFACES, MOUNTING OR COUPLING, DETAILS, ACCESSORIES, AUXILIARY OPERATIONS NOT OTHERWISE PROVIDED FOR, APPLICATION THEREOF
- E05Y2900/00—Application of doors, windows, wings or fittings thereof
- E05Y2900/10—Application of doors, windows, wings or fittings thereof for buildings or parts thereof
- E05Y2900/104—Application of doors, windows, wings or fittings thereof for buildings or parts thereof for elevators
Landscapes
- Chemical & Material Sciences (AREA)
- Organic Chemistry (AREA)
- Organic Low-Molecular-Weight Compounds And Preparation Thereof (AREA)
- Other In-Based Heterocyclic Compounds (AREA)
- Fertilizers (AREA)
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| NL7308834A NL7308834A (xx) | 1973-06-26 | 1973-06-26 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| ZA744054B true ZA744054B (en) | 1975-10-29 |
Family
ID=19819146
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| ZA00744054A ZA744054B (en) | 1973-06-26 | 1974-06-24 | Process for recovery of epsilon-carprolactam from a reaction mixture of epsilon-caprolactam and sulphuric acid |
Country Status (19)
| Country | Link |
|---|---|
| US (1) | US3907781A (xx) |
| JP (1) | JPS5036483A (xx) |
| AR (1) | AR199442A1 (xx) |
| AT (1) | AT334382B (xx) |
| AU (1) | AU476555B2 (xx) |
| BE (1) | BE816872A (xx) |
| BR (1) | BR7405226D0 (xx) |
| CS (1) | CS168478B2 (xx) |
| DD (1) | DD114078A5 (xx) |
| DE (1) | DE2430757A1 (xx) |
| ES (1) | ES427627A1 (xx) |
| FR (1) | FR2235121B1 (xx) |
| GB (1) | GB1434687A (xx) |
| IN (1) | IN139743B (xx) |
| IT (1) | IT1016162B (xx) |
| NL (1) | NL7308834A (xx) |
| SU (1) | SU552019A3 (xx) |
| TR (1) | TR18106A (xx) |
| ZA (1) | ZA744054B (xx) |
Families Citing this family (12)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| NL7410450A (nl) * | 1974-08-05 | 1976-02-09 | Stamicarbon | Werkwijze voor het winnen van epsilon-capro- lactam uit een epsilon-caprolactamzwavelzuur reactiemengsel. |
| NL7505130A (nl) * | 1975-05-01 | 1976-11-03 | Stamicarbon | Werkwijze voor de winning van zuiver epsilon- -caprolactam uit een waterige oplossing hiervan. |
| DE2651195C3 (de) * | 1976-11-10 | 1985-01-31 | Basf Ag, 6700 Ludwigshafen | Verfahren zur Gewinnung von grobkristallinem reinem Ammonsulfat |
| US4138472A (en) * | 1976-11-10 | 1979-02-06 | Basf Aktiengesellschaft | Process for obtaining coarsely crystalline pure ammonium sulfate |
| DE2845019A1 (de) * | 1978-10-16 | 1980-04-30 | Basf Ag | Verfahren zur kontinuierlichen herstellung von epsilon -caprolactam durch beckmann'sche umlagerung |
| FR2786180B1 (fr) * | 1998-11-19 | 2001-11-23 | Rhone Poulenc Fibres | Procede de traitement de lactames et procede de purification d'un lactame |
| EP1092681A1 (de) * | 1999-10-13 | 2001-04-18 | Va Tech Wabag AG | Verfahren zum Neutralisieren einer Abfallsäure und gleichzeitigem Gewinnen von Salzkristallen |
| EA022192B1 (ru) | 2010-07-02 | 2015-11-30 | ДСМ АйПи АССЕТС Б.В. | Высокотемпературная нейтрализация лактама |
| WO2013053377A1 (en) | 2011-10-10 | 2013-04-18 | Dsm Ip Assets B.V. | High temperature lactam neutralisation |
| CN103012273A (zh) * | 2012-11-26 | 2013-04-03 | 中国化学赛鼎宁波工程有限公司 | 一种己内酰胺重排液制备己内酰胺的中和结晶系统及其方法 |
| CN103145618B (zh) * | 2013-03-15 | 2014-06-18 | 东明天军化工有限公司 | 一种己内酰胺和硫酸铵联产的方法 |
| CN104356039B (zh) * | 2014-11-10 | 2017-02-15 | 河北美邦工程科技有限公司 | 一种己内酰胺制备工艺 |
Family Cites Families (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US2993889A (en) * | 1961-07-25 | Separation of a lactam from an acid | ||
| NL144600B (nl) * | 1964-03-07 | 1975-01-15 | Stamicarbon | Afscheiding van lactamen uit een sterk zwavelzuur milieu. |
| GB1123472A (en) * | 1965-01-21 | 1968-08-14 | Snia Viscosa | Improvements in or relating to the neutralization of acid solutions of caprolactam |
| NL164028C (nl) * | 1971-05-07 | 1980-11-17 | Stamicarbon | Werkwijze voor de afscheiding van lactamen. |
| US3852273A (en) * | 1971-05-07 | 1974-12-03 | Stamicarbon | Process for preparing and recovering lactams |
-
1973
- 1973-06-26 NL NL7308834A patent/NL7308834A/xx unknown
-
1974
- 1974-06-18 AT AT503874A patent/AT334382B/de active
- 1974-06-24 IT IT51708/74A patent/IT1016162B/it active
- 1974-06-24 ZA ZA00744054A patent/ZA744054B/xx unknown
- 1974-06-24 US US482601A patent/US3907781A/en not_active Expired - Lifetime
- 1974-06-24 SU SU2040365A patent/SU552019A3/ru active
- 1974-06-24 DD DD179427A patent/DD114078A5/xx unknown
- 1974-06-25 ES ES427627A patent/ES427627A1/es not_active Expired
- 1974-06-25 TR TR18106A patent/TR18106A/xx unknown
- 1974-06-25 FR FR7422071A patent/FR2235121B1/fr not_active Expired
- 1974-06-26 BR BR5226/74A patent/BR7405226D0/pt unknown
- 1974-06-26 AR AR254412A patent/AR199442A1/es active
- 1974-06-26 JP JP49073141A patent/JPS5036483A/ja active Pending
- 1974-06-26 BE BE145892A patent/BE816872A/xx unknown
- 1974-06-26 DE DE2430757A patent/DE2430757A1/de active Pending
- 1974-06-26 GB GB2839274A patent/GB1434687A/en not_active Expired
- 1974-06-26 CS CS4506A patent/CS168478B2/cs unknown
- 1974-07-02 AU AU70727/74A patent/AU476555B2/en not_active Expired
- 1974-07-26 IN IN1671/CAL/74A patent/IN139743B/en unknown
Also Published As
| Publication number | Publication date |
|---|---|
| US3907781A (en) | 1975-09-23 |
| JPS5036483A (xx) | 1975-04-05 |
| NL7308834A (xx) | 1974-12-30 |
| IN139743B (xx) | 1976-07-24 |
| SU552019A3 (ru) | 1977-03-25 |
| GB1434687A (en) | 1976-05-05 |
| FR2235121B1 (xx) | 1978-01-13 |
| TR18106A (tr) | 1976-09-30 |
| ES427627A1 (es) | 1976-10-16 |
| BE816872A (fr) | 1974-12-27 |
| DD114078A5 (xx) | 1975-07-12 |
| FR2235121A1 (xx) | 1975-01-24 |
| BR7405226D0 (pt) | 1975-01-21 |
| AU476555B2 (en) | 1976-09-30 |
| AR199442A1 (es) | 1974-08-30 |
| AU7072774A (en) | 1976-01-08 |
| CS168478B2 (xx) | 1976-06-29 |
| AT334382B (de) | 1976-01-10 |
| IT1016162B (it) | 1977-05-30 |
| ATA503874A (de) | 1976-05-15 |
| DE2430757A1 (de) | 1975-01-23 |
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