BR7703572A - Processo de purificacao de epsilon-caprolactama - Google Patents
Processo de purificacao de epsilon-caprolactamaInfo
- Publication number
- BR7703572A BR7703572A BR7703572A BR7703572A BR7703572A BR 7703572 A BR7703572 A BR 7703572A BR 7703572 A BR7703572 A BR 7703572A BR 7703572 A BR7703572 A BR 7703572A BR 7703572 A BR7703572 A BR 7703572A
- Authority
- BR
- Brazil
- Prior art keywords
- caprolactama
- epsilon
- purification process
- purification
- caprolactama purification
- Prior art date
Links
- 238000000746 purification Methods 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
Landscapes
- Chemical & Material Sciences (AREA)
- Organic Chemistry (AREA)
- Other In-Based Heterocyclic Compounds (AREA)
- Organic Low-Molecular-Weight Compounds And Preparation Thereof (AREA)
- Pyrrole Compounds (AREA)
- Polyamides (AREA)
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DE19762625402 DE2625402A1 (de) | 1976-06-05 | 1976-06-05 | Reinigung von epsilon-caprolactam |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| BR7703572A true BR7703572A (pt) | 1978-03-21 |
Family
ID=5979933
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| BR7703572A BR7703572A (pt) | 1976-06-05 | 1977-06-02 | Processo de purificacao de epsilon-caprolactama |
Country Status (10)
| Country | Link |
|---|---|
| JP (1) | JPS52151186A (fr) |
| BE (1) | BE855367A (fr) |
| BR (1) | BR7703572A (fr) |
| CH (1) | CH626339A5 (fr) |
| DD (1) | DD132491A5 (fr) |
| DE (1) | DE2625402A1 (fr) |
| ES (1) | ES459328A1 (fr) |
| FR (1) | FR2353535A1 (fr) |
| GB (1) | GB1535485A (fr) |
| NL (1) | NL7706080A (fr) |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE2845075A1 (de) * | 1978-10-17 | 1980-05-08 | Basf Ag | Verfahren zur reinigung von rohcaprolactam |
| 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 (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CH522649A (de) * | 1970-04-17 | 1973-04-13 | Buchs Metallwerk Ag | Verfahren zur Reinigung von Caprolactam |
| SU387996A1 (ru) * | 1971-04-30 | 1973-06-22 | Способ очистки капролактама | |
| CH564528A5 (en) * | 1972-06-14 | 1975-07-31 | Buchs Metallwerk Ag | Purification of caprolactam freed from water - by counter-current multi-stage cystallisation from the melt using a solvent |
-
1976
- 1976-06-05 DE DE19762625402 patent/DE2625402A1/de not_active Withdrawn
-
1977
- 1977-05-30 GB GB2272777A patent/GB1535485A/en not_active Expired
- 1977-05-31 ES ES459328A patent/ES459328A1/es not_active Expired
- 1977-06-02 BR BR7703572A patent/BR7703572A/pt unknown
- 1977-06-02 NL NL7706080A patent/NL7706080A/xx not_active Application Discontinuation
- 1977-06-03 BE BE178173A patent/BE855367A/fr not_active IP Right Cessation
- 1977-06-03 FR FR7717079A patent/FR2353535A1/fr active Granted
- 1977-06-03 CH CH689777A patent/CH626339A5/de not_active IP Right Cessation
- 1977-06-03 DD DD19929277A patent/DD132491A5/xx unknown
- 1977-06-03 JP JP6492777A patent/JPS52151186A/ja active Pending
Also Published As
| Publication number | Publication date |
|---|---|
| DE2625402A1 (de) | 1977-12-22 |
| FR2353535B1 (fr) | 1982-07-02 |
| BE855367A (fr) | 1977-12-05 |
| JPS52151186A (en) | 1977-12-15 |
| FR2353535A1 (fr) | 1977-12-30 |
| ES459328A1 (es) | 1978-03-16 |
| GB1535485A (en) | 1978-12-13 |
| DD132491A5 (de) | 1978-10-04 |
| NL7706080A (nl) | 1977-12-07 |
| CH626339A5 (en) | 1981-11-13 |
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