IT1021557B - Procedimento per il ricupero di epsilon caprolattame - Google Patents
Procedimento per il ricupero di epsilon caprolattameInfo
- Publication number
- IT1021557B IT1021557B IT51490/74A IT5149074A IT1021557B IT 1021557 B IT1021557 B IT 1021557B IT 51490/74 A IT51490/74 A IT 51490/74A IT 5149074 A IT5149074 A IT 5149074A IT 1021557 B IT1021557 B IT 1021557B
- Authority
- IT
- Italy
- Prior art keywords
- caprolactame
- epsilon
- recovery
- procedure
- epsilon caprolactame
- Prior art date
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)
- Organic Low-Molecular-Weight Compounds And Preparation Thereof (AREA)
- Other In-Based Heterocyclic Compounds (AREA)
- Polyamides (AREA)
- Extraction Or Liquid Replacement (AREA)
- Pyrrole Compounds (AREA)
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
NL7308100A NL7308100A (it) | 1973-06-12 | 1973-06-12 |
Publications (1)
Publication Number | Publication Date |
---|---|
IT1021557B true IT1021557B (it) | 1978-02-20 |
Family
ID=19819044
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
IT51490/74A IT1021557B (it) | 1973-06-12 | 1974-06-11 | Procedimento per il ricupero di epsilon caprolattame |
Country Status (13)
Country | Link |
---|---|
US (1) | US3944543A (it) |
JP (1) | JPS5052079A (it) |
AR (1) | AR203484A1 (it) |
BE (1) | BE816209A (it) |
CS (1) | CS183740B2 (it) |
DE (1) | DE2428203A1 (it) |
ES (1) | ES427168A1 (it) |
FR (1) | FR2233321B1 (it) |
GB (1) | GB1409522A (it) |
IN (1) | IN140825B (it) |
IT (1) | IT1021557B (it) |
NL (1) | NL7308100A (it) |
TR (1) | TR18304A (it) |
Families Citing this family (7)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE2641454A1 (de) * | 1976-09-15 | 1978-03-23 | Bayer Ag | Verfahren zur reinigung von epsilon-caprolactam |
US4767503A (en) * | 1983-08-29 | 1988-08-30 | Allied Corporation | Removal of light impurities from caprolactam by distillation with water |
JP2649736B2 (ja) * | 1990-06-22 | 1997-09-03 | 宇部興産株式会社 | ラクタム含有有機溶液の精製法 |
JP4351908B2 (ja) * | 2001-08-27 | 2009-10-28 | ディーエスエム アイピー アセッツ ビー.ブイ. | 減圧においてアルカリ性のカプロラクタム生成物を蒸留する方法 |
US7022844B2 (en) | 2002-09-21 | 2006-04-04 | Honeywell International Inc. | Amide-based compounds, production, recovery, purification and uses thereof |
TW201114740A (en) * | 2009-10-30 | 2011-05-01 | China Petrochemical Dev Corp Taipei Taiwan | Method of separating amide from amino acid ionic solution |
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***和方法 |
Family Cites Families (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US2758991A (en) * | 1956-08-14 | Hvvevvtofry | ||
US2221369A (en) * | 1940-11-12 | Process foe producing lactams | ||
FR1095772A (fr) * | 1953-03-19 | 1955-06-06 | Stamicarbon | Procédé pour épurer des lactames |
NL144600B (nl) * | 1964-03-07 | 1975-01-15 | Stamicarbon | Afscheiding van lactamen uit een sterk zwavelzuur milieu. |
CA989830A (en) * | 1971-05-07 | 1976-05-25 | Abraham H. De Rooij | Process for preparing and recovering lactams |
NL164028C (nl) * | 1971-05-07 | 1980-11-17 | Stamicarbon | Werkwijze voor de afscheiding van lactamen. |
-
1973
- 1973-06-12 NL NL7308100A patent/NL7308100A/xx not_active Application Discontinuation
-
1974
- 1974-06-10 GB GB2573674A patent/GB1409522A/en not_active Expired
- 1974-06-11 TR TR18304A patent/TR18304A/xx unknown
- 1974-06-11 DE DE19742428203 patent/DE2428203A1/de not_active Withdrawn
- 1974-06-11 IT IT51490/74A patent/IT1021557B/it active
- 1974-06-11 FR FR7420123A patent/FR2233321B1/fr not_active Expired
- 1974-06-11 US US05/478,331 patent/US3944543A/en not_active Expired - Lifetime
- 1974-06-11 ES ES427168A patent/ES427168A1/es not_active Expired
- 1974-06-12 BE BE145315A patent/BE816209A/xx unknown
- 1974-06-12 CS CS7400004170A patent/CS183740B2/cs unknown
- 1974-06-12 JP JP49067021A patent/JPS5052079A/ja active Pending
- 1974-06-14 AR AR254203A patent/AR203484A1/es active
- 1974-07-26 IN IN1670/CAL/1974A patent/IN140825B/en unknown
Also Published As
Publication number | Publication date |
---|---|
AR203484A1 (es) | 1975-09-15 |
DE2428203A1 (de) | 1975-01-09 |
BE816209A (fr) | 1974-12-12 |
IN140825B (it) | 1976-12-25 |
NL7308100A (it) | 1974-12-16 |
JPS5052079A (it) | 1975-05-09 |
CS183740B2 (en) | 1978-07-31 |
ES427168A1 (es) | 1976-07-16 |
FR2233321A1 (it) | 1975-01-10 |
GB1409522A (en) | 1975-10-08 |
FR2233321B1 (it) | 1978-01-13 |
TR18304A (tr) | 1977-01-07 |
US3944543A (en) | 1976-03-16 |
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