DE2014761C3 - Verfahren zur Entfernung von Oximen aus Lactamen - Google Patents
Verfahren zur Entfernung von Oximen aus LactamenInfo
- Publication number
- DE2014761C3 DE2014761C3 DE19702014761 DE2014761A DE2014761C3 DE 2014761 C3 DE2014761 C3 DE 2014761C3 DE 19702014761 DE19702014761 DE 19702014761 DE 2014761 A DE2014761 A DE 2014761A DE 2014761 C3 DE2014761 C3 DE 2014761C3
- Authority
- DE
- Germany
- Prior art keywords
- oxime
- oximes
- lactams
- lactam
- caprolactam
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired
Links
- 150000002923 oximes Chemical class 0.000 title claims description 20
- 150000003951 lactams Chemical class 0.000 title claims description 14
- 238000000034 method Methods 0.000 title claims description 7
- RAHZWNYVWXNFOC-UHFFFAOYSA-N Sulphur dioxide Chemical compound O=S=O RAHZWNYVWXNFOC-UHFFFAOYSA-N 0.000 claims description 14
- HEMHJVSKTPXQMS-UHFFFAOYSA-M Sodium hydroxide Chemical compound [OH-].[Na+] HEMHJVSKTPXQMS-UHFFFAOYSA-M 0.000 claims description 9
- 238000006243 chemical reaction Methods 0.000 claims description 4
- 230000003197 catalytic effect Effects 0.000 claims description 3
- 230000008707 rearrangement Effects 0.000 claims description 3
- JBKVHLHDHHXQEQ-UHFFFAOYSA-N epsilon-caprolactam Chemical compound O=C1CCCCCN1 JBKVHLHDHHXQEQ-UHFFFAOYSA-N 0.000 description 14
- VEZUQRBDRNJBJY-UHFFFAOYSA-N cyclohexanone oxime Chemical compound ON=C1CCCCC1 VEZUQRBDRNJBJY-UHFFFAOYSA-N 0.000 description 8
- 239000007789 gas Substances 0.000 description 3
- QAOWNCQODCNURD-UHFFFAOYSA-N Sulfuric acid Chemical compound OS(O)(=O)=O QAOWNCQODCNURD-UHFFFAOYSA-N 0.000 description 2
- 239000000203 mixture Substances 0.000 description 2
- 238000000926 separation method Methods 0.000 description 2
- 239000000126 substance Substances 0.000 description 2
- 238000006237 Beckmann rearrangement reaction Methods 0.000 description 1
- 239000004952 Polyamide Substances 0.000 description 1
- 150000001412 amines Chemical class 0.000 description 1
- BFNBIHQBYMNNAN-UHFFFAOYSA-N ammonium sulfate Chemical compound N.N.OS(O)(=O)=O BFNBIHQBYMNNAN-UHFFFAOYSA-N 0.000 description 1
- 229910052921 ammonium sulfate Inorganic materials 0.000 description 1
- 235000011130 ammonium sulphate Nutrition 0.000 description 1
- 239000006227 byproduct Substances 0.000 description 1
- 239000003054 catalyst Substances 0.000 description 1
- 238000004140 cleaning Methods 0.000 description 1
- 238000003776 cleavage reaction Methods 0.000 description 1
- 238000007872 degassing Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 239000011261 inert gas Substances 0.000 description 1
- 239000007788 liquid Substances 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 239000003960 organic solvent Substances 0.000 description 1
- 230000000704 physical effect Effects 0.000 description 1
- 229920002647 polyamide Polymers 0.000 description 1
- 230000035484 reaction time Effects 0.000 description 1
- 150000003839 salts Chemical class 0.000 description 1
- 230000007017 scission Effects 0.000 description 1
- 239000002699 waste material Substances 0.000 description 1
Classifications
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08G—MACROMOLECULAR COMPOUNDS OBTAINED OTHERWISE THAN BY REACTIONS ONLY INVOLVING UNSATURATED CARBON-TO-CARBON BONDS
- C08G69/00—Macromolecular compounds obtained by reactions forming a carboxylic amide link in the main chain of the macromolecule
- C08G69/02—Polyamides derived from amino-carboxylic acids or from polyamines and polycarboxylic acids
- C08G69/08—Polyamides derived from amino-carboxylic acids or from polyamines and polycarboxylic acids derived from amino-carboxylic acids
- C08G69/14—Lactams
- C08G69/16—Preparatory processes
-
- 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)
- Health & Medical Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Medicinal Chemistry (AREA)
- Polymers & Plastics (AREA)
- Other In-Based Heterocyclic Compounds (AREA)
- Low-Molecular Organic Synthesis Reactions Using Catalysts (AREA)
- Organic Low-Molecular-Weight Compounds And Preparation Thereof (AREA)
Priority Applications (6)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DE19702014761 DE2014761C3 (de) | 1970-03-26 | 1970-03-26 | Verfahren zur Entfernung von Oximen aus Lactamen |
| CH426771A CH549021A (de) | 1970-03-26 | 1971-03-24 | Verfahren zur entfernung von oximen aus lactamen. |
| NL7104047A NL172150C (nl) | 1970-03-26 | 1971-03-25 | Werkwijze voor het zuiveren van lactamen, alsmede gevormd voortbrengsel, geheel of ten dele bestaande uit een dergelijk lactam na polymerisatie. |
| FR7110730A FR2087869A5 (enExample) | 1970-03-26 | 1971-03-25 | |
| BE764894A BE764894A (fr) | 1970-03-26 | 1971-03-26 | Procede de purification de lactames |
| GB2401871A GB1286427A (en) | 1970-03-26 | 1971-04-19 | Process of purifying lactams |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DE19702014761 DE2014761C3 (de) | 1970-03-26 | 1970-03-26 | Verfahren zur Entfernung von Oximen aus Lactamen |
Publications (3)
| Publication Number | Publication Date |
|---|---|
| DE2014761A1 DE2014761A1 (de) | 1971-10-21 |
| DE2014761B2 DE2014761B2 (de) | 1981-01-15 |
| DE2014761C3 true DE2014761C3 (de) | 1982-01-21 |
Family
ID=5766479
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| DE19702014761 Expired DE2014761C3 (de) | 1970-03-26 | 1970-03-26 | Verfahren zur Entfernung von Oximen aus Lactamen |
Country Status (6)
| Country | Link |
|---|---|
| BE (1) | BE764894A (enExample) |
| CH (1) | CH549021A (enExample) |
| DE (1) | DE2014761C3 (enExample) |
| FR (1) | FR2087869A5 (enExample) |
| GB (1) | GB1286427A (enExample) |
| NL (1) | NL172150C (enExample) |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| NL9001545A (nl) * | 1990-07-06 | 1992-02-03 | Stamicarbon | Werkwijze voor het behandelen van amides. |
| NL1003564C2 (nl) * | 1996-07-11 | 1998-01-15 | Dsm Nv | Werkwijze voor het scheiden van een ketoxim of aldoxim van een amide. |
-
1970
- 1970-03-26 DE DE19702014761 patent/DE2014761C3/de not_active Expired
-
1971
- 1971-03-24 CH CH426771A patent/CH549021A/xx not_active IP Right Cessation
- 1971-03-25 FR FR7110730A patent/FR2087869A5/fr not_active Expired
- 1971-03-25 NL NL7104047A patent/NL172150C/xx not_active IP Right Cessation
- 1971-03-26 BE BE764894A patent/BE764894A/xx not_active IP Right Cessation
- 1971-04-19 GB GB2401871A patent/GB1286427A/en not_active Expired
Non-Patent Citations (1)
| Title |
|---|
| NICHTS-ERMITTELT |
Also Published As
| Publication number | Publication date |
|---|---|
| NL172150C (nl) | 1983-07-18 |
| BE764894A (fr) | 1971-08-16 |
| DE2014761B2 (de) | 1981-01-15 |
| CH549021A (de) | 1974-05-15 |
| DE2014761A1 (de) | 1971-10-21 |
| NL7104047A (enExample) | 1971-09-28 |
| FR2087869A5 (enExample) | 1971-12-31 |
| GB1286427A (en) | 1972-08-23 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C3 | Grant after two publication steps (3rd publication) | ||
| 8339 | Ceased/non-payment of the annual fee |