CH576441A5 - - Google Patents
Info
- Publication number
- CH576441A5 CH576441A5 CH116273A CH116273A CH576441A5 CH 576441 A5 CH576441 A5 CH 576441A5 CH 116273 A CH116273 A CH 116273A CH 116273 A CH116273 A CH 116273A CH 576441 A5 CH576441 A5 CH 576441A5
- 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
Landscapes
- Chemical & Material Sciences (AREA)
- Organic Chemistry (AREA)
- Other In-Based Heterocyclic Compounds (AREA)
- Extraction Or Liquid Replacement (AREA)
- Pyrrole Compounds (AREA)
- Organic Low-Molecular-Weight Compounds And Preparation Thereof (AREA)
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DE2203945A DE2203945B2 (de) | 1972-01-28 | 1972-01-28 | Verfahren zur Reinigung von e -Caprolactam |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CH576441A5 true CH576441A5 (US20110158925A1-20110630-C00042.png) | 1976-06-15 |
Family
ID=5834269
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CH116273A CH576441A5 (US20110158925A1-20110630-C00042.png) | 1972-01-28 | 1973-01-26 |
Country Status (11)
Families Citing this family (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| TW215084B (en) * | 1992-04-17 | 1993-10-21 | Sumitomo Chemical Co | Process for producing a high purity caprolactam |
| US6036865A (en) * | 1998-06-15 | 2000-03-14 | Union Carbide Chemicals & Plastics Technology Corporation | Separation processes |
| US6045703A (en) * | 1998-06-15 | 2000-04-04 | Union Carbide Chemicals & Plastics Technology Corporation | Separation processes |
| JP4182273B2 (ja) * | 2000-06-27 | 2008-11-19 | 住友化学株式会社 | ε−カプロラクタムの製造方法 |
| US7022844B2 (en) | 2002-09-21 | 2006-04-04 | Honeywell International Inc. | Amide-based compounds, production, recovery, purification and uses thereof |
| US20070155987A1 (en) * | 2006-01-04 | 2007-07-05 | O'meadhra Ruairi S | Oxidative digestion with optimized agitation |
| US20070208194A1 (en) * | 2006-03-01 | 2007-09-06 | Woodruff Thomas E | Oxidation system with sidedraw secondary reactor |
| US7816556B2 (en) * | 2006-03-01 | 2010-10-19 | Eastman Chemical Company | Polycarboxylic acid production system employing enhanced multistage oxidative digestion |
| US7772424B2 (en) * | 2006-03-01 | 2010-08-10 | Eastman Chemical Company | Polycarboxylic acid production system employing enhanced evaporative concentration downstream of oxidative digestion |
| US7501537B2 (en) * | 2006-03-01 | 2009-03-10 | Eastman Chemical Company | Polycarboxylic acid production system employing oxidative digestion with reduced or eliminated upstream liquor exchange |
Family Cites Families (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US2758991A (en) * | 1956-08-14 | Hvvevvtofry | ||
| US2313026A (en) * | 1939-02-13 | 1943-03-02 | Schlack Paul | Process for the manufacture of lactams from oximes of cyclic ketones |
| CH547805A (de) * | 1970-10-01 | 1974-04-11 | Inventa Ag | Verfahren zur reinigung von lactamen. |
| CH547286A (de) * | 1971-01-06 | 1974-03-29 | Inventa Ag | Verfahren zur reinigung von lactamen. |
-
0
- BE BE794622D patent/BE794622A/xx not_active IP Right Cessation
-
1972
- 1972-01-28 DE DE2203945A patent/DE2203945B2/de active Granted
-
1973
- 1973-01-23 US US326125A patent/US3899485A/en not_active Expired - Lifetime
- 1973-01-25 GB GB381573A patent/GB1390294A/en not_active Expired
- 1973-01-25 NL NL7301105A patent/NL7301105A/xx not_active Application Discontinuation
- 1973-01-26 CH CH116273A patent/CH576441A5/xx not_active IP Right Cessation
- 1973-01-26 FR FR7302913A patent/FR2169364B1/fr not_active Expired
- 1973-01-26 JP JP48010376A patent/JPS5752328B2/ja not_active Expired
- 1973-01-26 CA CA162,179A patent/CA1038384A/en not_active Expired
- 1973-01-26 DD DD168476A patent/DD104522A5/xx unknown
- 1973-01-26 IT IT47907/73A patent/IT977064B/it active
Also Published As
| Publication number | Publication date |
|---|---|
| DD104522A5 (US20110158925A1-20110630-C00042.png) | 1974-03-12 |
| BE794622A (fr) | 1973-07-26 |
| DE2203945A1 (de) | 1973-08-02 |
| DE2203945B2 (de) | 1980-03-27 |
| JPS5752328B2 (US20110158925A1-20110630-C00042.png) | 1982-11-06 |
| FR2169364A1 (US20110158925A1-20110630-C00042.png) | 1973-09-07 |
| FR2169364B1 (US20110158925A1-20110630-C00042.png) | 1978-03-03 |
| CA1038384A (en) | 1978-09-12 |
| NL7301105A (US20110158925A1-20110630-C00042.png) | 1973-07-31 |
| GB1390294A (en) | 1975-04-09 |
| US3899485A (en) | 1975-08-12 |
| IT977064B (it) | 1974-09-10 |
| JPS4885586A (US20110158925A1-20110630-C00042.png) | 1973-11-13 |
| DE2203945C3 (US20110158925A1-20110630-C00042.png) | 1980-11-20 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PL | Patent ceased |