CH574414A5 - - Google Patents
Info
- Publication number
- CH574414A5 CH574414A5 CH1568672A CH1568672A CH574414A5 CH 574414 A5 CH574414 A5 CH 574414A5 CH 1568672 A CH1568672 A CH 1568672A CH 1568672 A CH1568672 A CH 1568672A CH 574414 A5 CH574414 A5 CH 574414A5
- Authority
- CH
- Switzerland
Links
Classifications
-
- C—CHEMISTRY; METALLURGY
- C07—ORGANIC CHEMISTRY
- C07D—HETEROCYCLIC COMPOUNDS
- C07D201/00—Preparation, separation, purification or stabilisation of unsubstituted lactams
- C07D201/02—Preparation of lactams
- C07D201/04—Preparation of lactams from or via oximes by Beckmann rearrangement
-
- C—CHEMISTRY; METALLURGY
- C07—ORGANIC CHEMISTRY
- C07D—HETEROCYCLIC COMPOUNDS
- C07D201/00—Preparation, separation, purification or stabilisation of unsubstituted lactams
- C07D201/16—Separation or purification
Landscapes
- Chemical & Material Sciences (AREA)
- Organic Chemistry (AREA)
- Organic Low-Molecular-Weight Compounds And Preparation Thereof (AREA)
- Other In-Based Heterocyclic Compounds (AREA)
- Polyamides (AREA)
- Separation Of Suspended Particles By Flocculating Agents (AREA)
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| NLAANVRAGE7114904,A NL171893C (nl) | 1971-10-29 | 1971-10-29 | Werkwijze voor de winning van zuiver epsilon-aminocaprolactam. |
| NL7211586A NL7211586A (en) | 1972-08-25 | 1972-08-25 | High-purity epsilon-caprolactam prodn - by intramolecular rearrangement of cyclohexanone oxime with acid catalyst followed by |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CH574414A5 true CH574414A5 (cs) | 1976-04-15 |
Family
ID=26644695
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CH1568672A CH574414A5 (cs) | 1971-10-29 | 1972-10-26 |
Country Status (13)
| Country | Link |
|---|---|
| US (1) | US3850910A (cs) |
| JP (1) | JPS5335079B2 (cs) |
| AR (1) | AR193140A1 (cs) |
| BE (1) | BE790692A (cs) |
| CH (1) | CH574414A5 (cs) |
| CS (1) | CS183671B2 (cs) |
| DD (1) | DD101668A5 (cs) |
| DE (1) | DE2252891A1 (cs) |
| FR (1) | FR2158051B1 (cs) |
| GB (1) | GB1399000A (cs) |
| IT (1) | IT966829B (cs) |
| PL (1) | PL82397B1 (cs) |
| RO (1) | RO64765A (cs) |
Families Citing this family (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| NL7505130A (nl) * | 1975-05-01 | 1976-11-03 | Stamicarbon | Werkwijze voor de winning van zuiver epsilon- -caprolactam uit een waterige oplossing hiervan. |
| NL7601061A (nl) * | 1976-02-03 | 1977-08-05 | Stamicarbon | Werkwijze voor het winnen van epsilon-caprolac- tam uit een epsilon-caprolactamzwavelzuur-reac- tiemengsel. |
| NL7700882A (nl) * | 1977-01-28 | 1978-08-01 | Stamicarbon | Werkwijze voor het winnen van epsilon-caprolac- tam uit een epsilon-caprolactamzwavelzuurreac- tiemengsel. |
| IT1173261B (it) * | 1984-02-08 | 1987-06-18 | Snia Bpd Spa | Procedimento di purificazione del caprolattame |
| JP2782919B2 (ja) * | 1990-06-12 | 1998-08-06 | 宇部興産株式会社 | ラクタム含有有機溶液の精製方法 |
| JP2601945B2 (ja) * | 1990-11-21 | 1997-04-23 | 宇部興産株式会社 | ラクタム油の精製方法 |
| JP2601946B2 (ja) * | 1990-11-21 | 1997-04-23 | 宇部興産株式会社 | ラクタム含有溶液の精製方法 |
| BE1011047A3 (nl) * | 1997-03-17 | 1999-04-06 | Dsm Nv | Werkwijze voor het zuiveren van caprolactam. |
| US7022844B2 (en) * | 2002-09-21 | 2006-04-04 | Honeywell International Inc. | Amide-based compounds, production, recovery, purification and uses thereof |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| FR1261891A (fr) * | 1959-10-09 | 1961-05-26 | Stamicarbon | Procédé pour séparer un lactame d'un mélange réactionnel acide |
-
0
- BE BE790692D patent/BE790692A/xx not_active IP Right Cessation
-
1972
- 1972-10-26 CH CH1568672A patent/CH574414A5/xx not_active IP Right Cessation
- 1972-10-27 DE DE2252891A patent/DE2252891A1/de not_active Ceased
- 1972-10-27 GB GB4973372A patent/GB1399000A/en not_active Expired
- 1972-10-27 IT IT53686/72A patent/IT966829B/it active
- 1972-10-27 CS CS7200007250A patent/CS183671B2/cs unknown
- 1972-10-27 DD DD166519A patent/DD101668A5/xx unknown
- 1972-10-28 JP JP10840072A patent/JPS5335079B2/ja not_active Expired
- 1972-10-28 PL PL1972158529A patent/PL82397B1/pl unknown
- 1972-10-30 FR FR7238403A patent/FR2158051B1/fr not_active Expired
- 1972-10-30 AR AR244880A patent/AR193140A1/es active
- 1972-10-30 RO RO7272673A patent/RO64765A/ro unknown
- 1972-10-30 US US00301726A patent/US3850910A/en not_active Expired - Lifetime
Also Published As
| Publication number | Publication date |
|---|---|
| US3850910A (en) | 1974-11-26 |
| FR2158051A1 (cs) | 1973-06-08 |
| JPS5335079B2 (cs) | 1978-09-25 |
| DD101668A5 (cs) | 1973-11-12 |
| FR2158051B1 (cs) | 1976-05-21 |
| CS183671B2 (en) | 1978-07-31 |
| BE790692A (fr) | 1973-04-27 |
| IT966829B (it) | 1974-02-20 |
| GB1399000A (en) | 1975-06-25 |
| DE2252891A1 (de) | 1973-05-03 |
| AR193140A1 (es) | 1973-03-30 |
| RO64765A (ro) | 1980-01-15 |
| PL82397B1 (en) | 1975-10-31 |
| JPS4852785A (cs) | 1973-07-24 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PL | Patent ceased | ||
| PL | Patent ceased |