CH421968A - Caprolactam Purification Process - Google Patents
Caprolactam Purification ProcessInfo
- Publication number
- CH421968A CH421968A CH1003662A CH1003662A CH421968A CH 421968 A CH421968 A CH 421968A CH 1003662 A CH1003662 A CH 1003662A CH 1003662 A CH1003662 A CH 1003662A CH 421968 A CH421968 A CH 421968A
- Authority
- CH
- Switzerland
- Prior art keywords
- purification process
- caprolactam purification
- caprolactam
- purification
- 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
-
- C—CHEMISTRY; METALLURGY
- C07—ORGANIC CHEMISTRY
- C07D—HETEROCYCLIC COMPOUNDS
- C07D201/00—Preparation, separation, purification or stabilisation of unsubstituted lactams
-
- C—CHEMISTRY; METALLURGY
- C07—ORGANIC CHEMISTRY
- C07D—HETEROCYCLIC COMPOUNDS
- C07D201/00—Preparation, separation, purification or stabilisation of unsubstituted lactams
- C07D201/02—Preparation of lactams
- C07D201/08—Preparation of lactams from carboxylic acids or derivatives thereof, e.g. hydroxy carboxylic acids, lactones or nitriles
-
- C—CHEMISTRY; METALLURGY
- C07—ORGANIC CHEMISTRY
- C07D—HETEROCYCLIC COMPOUNDS
- C07D223/00—Heterocyclic compounds containing seven-membered rings having one nitrogen atom as the only ring hetero atom
- C07D223/02—Heterocyclic compounds containing seven-membered rings having one nitrogen atom as the only ring hetero atom not condensed with other rings
- C07D223/06—Heterocyclic compounds containing seven-membered rings having one nitrogen atom as the only ring hetero atom not condensed with other rings with hetero atoms or with carbon atoms having three bonds to hetero atoms with at the most one bond to halogen, e.g. ester or nitrile radicals, directly attached to ring carbon atoms
- C07D223/08—Oxygen atoms
- C07D223/10—Oxygen atoms attached in position 2
Landscapes
- Chemical & Material Sciences (AREA)
- Organic Chemistry (AREA)
- Organic Low-Molecular-Weight Compounds And Preparation Thereof (AREA)
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| IT1577061 | 1961-08-30 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CH421968A true CH421968A (en) | 1966-10-15 |
Family
ID=11148210
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CH1003662A CH421968A (en) | 1961-08-30 | 1962-08-23 | Caprolactam Purification Process |
Country Status (3)
| Country | Link |
|---|---|
| CH (1) | CH421968A (en) |
| ES (1) | ES280225A1 (en) |
| GB (1) | GB1003858A (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109694349B (en) * | 2017-10-24 | 2022-10-14 | 中国石油化工股份有限公司 | Caprolactam refining method |
-
1962
- 1962-08-15 GB GB31371/62A patent/GB1003858A/en not_active Expired
- 1962-08-23 ES ES0280225A patent/ES280225A1/en not_active Expired
- 1962-08-23 CH CH1003662A patent/CH421968A/en unknown
Also Published As
| Publication number | Publication date |
|---|---|
| ES280225A1 (en) | 1962-11-01 |
| GB1003858A (en) | 1965-09-08 |
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