GB1420063A - Method for isolating epsilon-caprolactam material - Google Patents
Method for isolating epsilon-caprolactam materialInfo
- Publication number
- GB1420063A GB1420063A GB605474A GB605474A GB1420063A GB 1420063 A GB1420063 A GB 1420063A GB 605474 A GB605474 A GB 605474A GB 605474 A GB605474 A GB 605474A GB 1420063 A GB1420063 A GB 1420063A
- Authority
- GB
- United Kingdom
- Prior art keywords
- caprolactam
- alkali metal
- monomer
- oligomer
- polymer
- 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
- JBKVHLHDHHXQEQ-UHFFFAOYSA-N epsilon-caprolactam Chemical compound O=C1CCCCCN1 JBKVHLHDHHXQEQ-UHFFFAOYSA-N 0.000 title abstract 4
- 239000000463 material Substances 0.000 title abstract 4
- 238000000034 method Methods 0.000 title abstract 2
- 229920000642 polymer Polymers 0.000 abstract 10
- NBIIXXVUZAFLBC-UHFFFAOYSA-N Phosphoric acid Chemical compound OP(O)(O)=O NBIIXXVUZAFLBC-UHFFFAOYSA-N 0.000 abstract 8
- 150000001339 alkali metal compounds Chemical class 0.000 abstract 6
- 239000003054 catalyst Substances 0.000 abstract 5
- 238000004821 distillation Methods 0.000 abstract 5
- 239000000203 mixture Substances 0.000 abstract 4
- 239000000178 monomer Substances 0.000 abstract 4
- 229910052783 alkali metal Inorganic materials 0.000 abstract 3
- 229910000318 alkali metal phosphate Inorganic materials 0.000 abstract 3
- 150000001340 alkali metals Chemical class 0.000 abstract 3
- 229910000147 aluminium phosphate Inorganic materials 0.000 abstract 3
- 238000006243 chemical reaction Methods 0.000 abstract 3
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 abstract 3
- 239000007864 aqueous solution Substances 0.000 abstract 2
- VEZUQRBDRNJBJY-UHFFFAOYSA-N cyclohexanone oxime Chemical compound ON=C1CCCCC1 VEZUQRBDRNJBJY-UHFFFAOYSA-N 0.000 abstract 2
- 150000004678 hydrides Chemical class 0.000 abstract 2
- 239000012535 impurity Substances 0.000 abstract 2
- 229910052751 metal Inorganic materials 0.000 abstract 2
- 239000002184 metal Substances 0.000 abstract 2
- 230000000379 polymerizing effect Effects 0.000 abstract 2
- 238000006237 Beckmann rearrangement reaction Methods 0.000 abstract 1
- BVKZGUZCCUSVTD-UHFFFAOYSA-L Carbonate Chemical compound [O-]C([O-])=O BVKZGUZCCUSVTD-UHFFFAOYSA-L 0.000 abstract 1
- 150000008044 alkali metal hydroxides Chemical class 0.000 abstract 1
- 150000004649 carbonic acid derivatives Chemical class 0.000 abstract 1
- 238000002485 combustion reaction Methods 0.000 abstract 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-M hydroxide Chemical compound [OH-] XLYOFNOQVPJJNP-UHFFFAOYSA-M 0.000 abstract 1
- 150000002736 metal compounds Chemical class 0.000 abstract 1
- 229910001463 metal phosphate Inorganic materials 0.000 abstract 1
- 238000000746 purification Methods 0.000 abstract 1
- 239000000126 substance Substances 0.000 abstract 1
- 238000005406 washing Methods 0.000 abstract 1
- 239000002351 wastewater Substances 0.000 abstract 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
-
- C—CHEMISTRY; METALLURGY
- C07—ORGANIC CHEMISTRY
- C07D—HETEROCYCLIC COMPOUNDS
- C07D201/00—Preparation, separation, purification or stabilisation of unsubstituted lactams
- C07D201/02—Preparation of lactams
- C07D201/12—Preparation of lactams by depolymerising polyamides
Landscapes
- Chemical & Material Sciences (AREA)
- Organic Chemistry (AREA)
- Separation, Recovery Or Treatment Of Waste Materials Containing Plastics (AREA)
- Other In-Based Heterocyclic Compounds (AREA)
- Polyamides (AREA)
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1778573A JPS5320516B2 (enrdf_load_stackoverflow) | 1973-02-12 | 1973-02-12 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| GB1420063A true GB1420063A (en) | 1976-01-07 |
Family
ID=11953354
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| GB605474A Expired GB1420063A (en) | 1973-02-12 | 1974-02-11 | Method for isolating epsilon-caprolactam material |
Country Status (4)
| Country | Link |
|---|---|
| JP (1) | JPS5320516B2 (enrdf_load_stackoverflow) |
| DE (1) | DE2406398C3 (enrdf_load_stackoverflow) |
| GB (1) | GB1420063A (enrdf_load_stackoverflow) |
| IT (1) | IT1009641B (enrdf_load_stackoverflow) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114426769A (zh) * | 2020-09-22 | 2022-05-03 | 中国石油化工股份有限公司 | 己内酰胺水解开环聚合制备尼龙6过程中回收的己内酰胺及其环状低聚体混合物的应用 |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| BE795248A (fr) * | 1972-02-09 | 1973-05-29 | Luso Farmaco Inst | Benzodioxoles substitues et leur preparation |
-
1973
- 1973-02-12 JP JP1778573A patent/JPS5320516B2/ja not_active Expired
-
1974
- 1974-02-11 IT IT2043974A patent/IT1009641B/it active
- 1974-02-11 DE DE19742406398 patent/DE2406398C3/de not_active Expired
- 1974-02-11 GB GB605474A patent/GB1420063A/en not_active Expired
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114426769A (zh) * | 2020-09-22 | 2022-05-03 | 中国石油化工股份有限公司 | 己内酰胺水解开环聚合制备尼龙6过程中回收的己内酰胺及其环状低聚体混合物的应用 |
Also Published As
| Publication number | Publication date |
|---|---|
| DE2406398A1 (de) | 1974-08-29 |
| JPS49102687A (enrdf_load_stackoverflow) | 1974-09-27 |
| DE2406398C3 (de) | 1979-01-04 |
| JPS5320516B2 (enrdf_load_stackoverflow) | 1978-06-27 |
| DE2406398B2 (de) | 1978-05-18 |
| IT1009641B (it) | 1976-12-20 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PS | Patent sealed | ||
| PCNP | Patent ceased through non-payment of renewal fee |