CH575390A5 - - Google Patents
Info
- Publication number
- CH575390A5 CH575390A5 CH1790572A CH1790572A CH575390A5 CH 575390 A5 CH575390 A5 CH 575390A5 CH 1790572 A CH1790572 A CH 1790572A CH 1790572 A CH1790572 A CH 1790572A CH 575390 A5 CH575390 A5 CH 575390A5
- Authority
- CH
- Switzerland
Links
Classifications
-
- C—CHEMISTRY; METALLURGY
- C07—ORGANIC CHEMISTRY
- C07D—HETEROCYCLIC COMPOUNDS
- C07D201/00—Preparation, separation, purification or stabilisation of unsubstituted lactams
- C07D201/16—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
- C07D201/04—Preparation of lactams from or via oximes by Beckmann rearrangement
Landscapes
- Chemical & Material Sciences (AREA)
- Organic Chemistry (AREA)
- Extraction Or Liquid Replacement (AREA)
- Organic Low-Molecular-Weight Compounds And Preparation Thereof (AREA)
- Other In-Based Heterocyclic Compounds (AREA)
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
NLAANVRAGE7117035,A NL170630C (nl) | 1971-12-11 | 1971-12-11 | Werkwijze voor de afscheiding van lactam. |
Publications (1)
Publication Number | Publication Date |
---|---|
CH575390A5 true CH575390A5 (xx) | 1976-05-14 |
Family
ID=19814675
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
CH1790572A CH575390A5 (xx) | 1971-12-11 | 1972-12-08 |
Country Status (12)
Country | Link |
---|---|
US (1) | US3879380A (xx) |
JP (1) | JPS5437156B2 (xx) |
BE (1) | BE792559A (xx) |
BR (1) | BR7208691D0 (xx) |
CH (1) | CH575390A5 (xx) |
DE (1) | DE2260014A1 (xx) |
ES (1) | ES409481A1 (xx) |
FR (1) | FR2162670B1 (xx) |
GB (1) | GB1397289A (xx) |
IN (1) | IN139192B (xx) |
IT (1) | IT973978B (xx) |
NL (1) | NL170630C (xx) |
Families Citing this family (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
NL7607047A (nl) * | 1976-06-28 | 1977-12-30 | Stamicarbon | Werkwijze voor het winnen van epsilon-caprolac- tam uit een epsilon-caprolactam-zwavelzuur- -reactiemengsel. |
NL7700882A (nl) * | 1977-01-28 | 1978-08-01 | Stamicarbon | Werkwijze voor het winnen van epsilon-caprolac- tam uit een epsilon-caprolactamzwavelzuurreac- tiemengsel. |
WO2013053377A1 (en) * | 2011-10-10 | 2013-04-18 | Dsm Ip Assets B.V. | High temperature lactam neutralisation |
CN115253380B (zh) * | 2022-08-19 | 2023-09-01 | 清元智能科技研究院(湖北)有限公司 | 一种己内酰胺萃取系统和方法 |
Family Cites Families (7)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US2249177A (en) * | 1941-07-15 | Rearrangement reaction of oxevies | ||
US2993889A (en) * | 1961-07-25 | Separation of a lactam from an acid | ||
US2351381A (en) * | 1944-06-13 | Process for the conversion of | ||
US2737511A (en) * | 1956-03-06 | Extraction of lactam | ||
US2723266A (en) * | 1952-05-15 | 1955-11-08 | British Celanese | Process for producing amides and lactams |
NL144600B (nl) * | 1964-03-07 | 1975-01-15 | Stamicarbon | Afscheiding van lactamen uit een sterk zwavelzuur milieu. |
JPS5220997A (en) * | 1975-08-12 | 1977-02-17 | Nippon Peroxide Co Ltd | Coloring method of sodium percarbonate |
-
0
- BE BE792559D patent/BE792559A/xx unknown
-
1971
- 1971-12-11 NL NLAANVRAGE7117035,A patent/NL170630C/xx not_active IP Right Cessation
-
1972
- 1972-12-07 IT IT54588/72A patent/IT973978B/it active
- 1972-12-07 DE DE2260014A patent/DE2260014A1/de not_active Withdrawn
- 1972-12-08 GB GB5690072A patent/GB1397289A/en not_active Expired
- 1972-12-08 CH CH1790572A patent/CH575390A5/xx not_active IP Right Cessation
- 1972-12-08 BR BR8691/72A patent/BR7208691D0/pt unknown
- 1972-12-09 ES ES409481A patent/ES409481A1/es not_active Expired
- 1972-12-11 US US313638A patent/US3879380A/en not_active Expired - Lifetime
- 1972-12-11 JP JP12425372A patent/JPS5437156B2/ja not_active Expired
- 1972-12-11 FR FR7243994A patent/FR2162670B1/fr not_active Expired
- 1972-12-13 IN IN2140/72A patent/IN139192B/en unknown
Also Published As
Publication number | Publication date |
---|---|
NL170630C (nl) | 1982-12-01 |
NL7117035A (xx) | 1973-06-13 |
ES409481A1 (es) | 1975-11-16 |
IT973978B (it) | 1974-06-10 |
DE2260014A1 (de) | 1973-06-14 |
FR2162670B1 (xx) | 1976-08-20 |
GB1397289A (en) | 1975-06-11 |
JPS5437156B2 (xx) | 1979-11-13 |
BE792559A (fr) | 1973-06-12 |
US3879380A (en) | 1975-04-22 |
JPS4864089A (xx) | 1973-09-05 |
NL170630B (nl) | 1982-07-01 |
BR7208691D0 (pt) | 1973-09-25 |
IN139192B (xx) | 1976-05-22 |
FR2162670A1 (xx) | 1973-07-20 |
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Legal Events
Date | Code | Title | Description |
---|---|---|---|
PL | Patent ceased |