DK103021C - Method for purifying ɛ-caprolactam. - Google Patents
Method for purifying ɛ-caprolactam.Info
- Publication number
- DK103021C DK103021C DK471262AA DK471262A DK103021C DK 103021 C DK103021 C DK 103021C DK 471262A A DK471262A A DK 471262AA DK 471262 A DK471262 A DK 471262A DK 103021 C DK103021 C DK 103021C
- Authority
- DK
- Denmark
- Prior art keywords
- caprolactam
- purifying
- 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
- 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)
- Other In-Based Heterocyclic Compounds (AREA)
- Polyamides (AREA)
- Organic Low-Molecular-Weight Compounds And Preparation Thereof (AREA)
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
CH1394861A CH393332A (en) | 1961-11-30 | 1961-11-30 | Process for purifying e-caprolactam |
Publications (1)
Publication Number | Publication Date |
---|---|
DK103021C true DK103021C (en) | 1965-11-08 |
Family
ID=4396688
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
DK471262AA DK103021C (en) | 1961-11-30 | 1962-11-01 | Method for purifying ɛ-caprolactam. |
Country Status (4)
Country | Link |
---|---|
CH (1) | CH393332A (en) |
DK (1) | DK103021C (en) |
ES (1) | ES282923A1 (en) |
GB (1) | GB990124A (en) |
Families Citing this family (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
FR2781796B1 (en) * | 1998-07-28 | 2000-09-22 | Rhone Poulenc Fibres | LACTAM DEHYDRATION PROCESS |
-
1961
- 1961-11-30 CH CH1394861A patent/CH393332A/en unknown
-
1962
- 1962-10-08 GB GB38055/62A patent/GB990124A/en not_active Expired
- 1962-11-01 DK DK471262AA patent/DK103021C/en active
- 1962-11-29 ES ES282923A patent/ES282923A1/en not_active Expired
Also Published As
Publication number | Publication date |
---|---|
GB990124A (en) | 1965-04-28 |
ES282923A1 (en) | 1963-05-01 |
CH393332A (en) | 1965-06-15 |
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