GB1157416A - Purification of Caprolactam - Google Patents
Purification of CaprolactamInfo
- Publication number
- GB1157416A GB1157416A GB1669368A GB1669368A GB1157416A GB 1157416 A GB1157416 A GB 1157416A GB 1669368 A GB1669368 A GB 1669368A GB 1669368 A GB1669368 A GB 1669368A GB 1157416 A GB1157416 A GB 1157416A
- Authority
- GB
- United Kingdom
- Prior art keywords
- caprolactam
- extracting
- water
- purification
- water used
- 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 12
- 238000000746 purification Methods 0.000 title abstract 2
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 abstract 5
- UHOVQNZJYSORNB-UHFFFAOYSA-N Benzene Chemical compound C1=CC=CC=C1 UHOVQNZJYSORNB-UHFFFAOYSA-N 0.000 abstract 3
- 239000003960 organic solvent Substances 0.000 abstract 2
- KNIUHBNRWZGIQQ-UHFFFAOYSA-N 7-diethoxyphosphinothioyloxy-4-methylchromen-2-one Chemical compound CC1=CC(=O)OC2=CC(OP(=S)(OCC)OCC)=CC=C21 KNIUHBNRWZGIQQ-UHFFFAOYSA-N 0.000 abstract 1
- 150000008044 alkali metal hydroxides Chemical class 0.000 abstract 1
- 238000004821 distillation Methods 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
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)
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DEF0052259 | 1967-04-27 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| GB1157416A true GB1157416A (en) | 1969-07-09 |
Family
ID=7105317
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| GB1669368A Expired GB1157416A (en) | 1967-04-27 | 1968-04-08 | Purification of Caprolactam |
Country Status (6)
| Country | Link |
|---|---|
| BE (1) | BE714180A (cg-RX-API-DMAC7.html) |
| CH (1) | CH491923A (cg-RX-API-DMAC7.html) |
| DE (1) | DE1670861A1 (cg-RX-API-DMAC7.html) |
| FR (1) | FR1560939A (cg-RX-API-DMAC7.html) |
| GB (1) | GB1157416A (cg-RX-API-DMAC7.html) |
| NL (1) | NL6805663A (cg-RX-API-DMAC7.html) |
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106554309A (zh) * | 2015-09-24 | 2017-04-05 | 中国石油化工股份有限公司 | 一种深度脱除苯-己溶液中残余盐类杂质的方法 |
| CN117164515A (zh) * | 2022-05-27 | 2023-12-05 | 东明旭阳化工有限公司 | 一种己内酰胺苯蒸残液的处理方法 |
| CN118660871A (zh) * | 2022-01-28 | 2024-09-17 | Cap Iii 有限公司 | 用于从含尼龙6的多组分材料回收ε-己内酰胺的方法 |
| US12435041B2 (en) | 2022-01-28 | 2025-10-07 | Cap Iii B. V. | Process for the recovery of epsilon-caprolactam from nylon 6 comprising fishing nets |
| US12454508B2 (en) | 2022-01-28 | 2025-10-28 | Cap Iii B.V. | Process for the recovery of epsilon-caprolactam from polyamide 6 comprising fishing nets |
| US12473255B2 (en) | 2022-07-11 | 2025-11-18 | Hscc Sustainable Venturing B.V. | Process for the recovery of epsilon-caprolactam from nylon 6-containing multi-component material |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| NL7505130A (nl) * | 1975-05-01 | 1976-11-03 | Stamicarbon | Werkwijze voor de winning van zuiver epsilon- -caprolactam uit een waterige oplossing hiervan. |
| IT1112840B (it) * | 1979-05-04 | 1986-01-20 | Snia Viscosa | Metodo per la purificazione del caprolattame grezzo contenente ammidi e daltri sottoprodotti |
-
1967
- 1967-04-27 DE DE19671670861 patent/DE1670861A1/de active Pending
-
1968
- 1968-03-22 CH CH430468A patent/CH491923A/de not_active IP Right Cessation
- 1968-04-08 GB GB1669368A patent/GB1157416A/en not_active Expired
- 1968-04-22 NL NL6805663A patent/NL6805663A/xx unknown
- 1968-04-25 BE BE714180D patent/BE714180A/xx unknown
- 1968-04-26 FR FR1560939D patent/FR1560939A/fr not_active Expired
Cited By (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106554309A (zh) * | 2015-09-24 | 2017-04-05 | 中国石油化工股份有限公司 | 一种深度脱除苯-己溶液中残余盐类杂质的方法 |
| CN118660871A (zh) * | 2022-01-28 | 2024-09-17 | Cap Iii 有限公司 | 用于从含尼龙6的多组分材料回收ε-己内酰胺的方法 |
| US12371407B2 (en) | 2022-01-28 | 2025-07-29 | Cap Iii B.V. | Process for the recovery of epsilon-caprolactam from nylon 6-containing multi-component material |
| US12435041B2 (en) | 2022-01-28 | 2025-10-07 | Cap Iii B. V. | Process for the recovery of epsilon-caprolactam from nylon 6 comprising fishing nets |
| US12454508B2 (en) | 2022-01-28 | 2025-10-28 | Cap Iii B.V. | Process for the recovery of epsilon-caprolactam from polyamide 6 comprising fishing nets |
| CN118660871B (zh) * | 2022-01-28 | 2025-11-28 | 福建省恒新绿色科技有限公司 | 用于从含尼龙6的多组分材料回收ε-己内酰胺的方法 |
| CN121378079A (zh) * | 2022-01-28 | 2026-01-23 | 福建省恒新绿色科技有限公司 | 用于从含尼龙6的多组分材料回收ε-己内酰胺的方法 |
| CN117164515A (zh) * | 2022-05-27 | 2023-12-05 | 东明旭阳化工有限公司 | 一种己内酰胺苯蒸残液的处理方法 |
| US12473255B2 (en) | 2022-07-11 | 2025-11-18 | Hscc Sustainable Venturing B.V. | Process for the recovery of epsilon-caprolactam from nylon 6-containing multi-component material |
Also Published As
| Publication number | Publication date |
|---|---|
| CH491923A (de) | 1970-06-15 |
| NL6805663A (cg-RX-API-DMAC7.html) | 1968-10-28 |
| DE1670861A1 (de) | 1971-03-11 |
| FR1560939A (cg-RX-API-DMAC7.html) | 1969-03-21 |
| BE714180A (cg-RX-API-DMAC7.html) | 1968-09-16 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PS | Patent sealed | ||
| PLNP | Patent lapsed through nonpayment of renewal fees |