DE1670861A1 - Verfahren zur Reinigung von Lactamen - Google Patents
Verfahren zur Reinigung von LactamenInfo
- Publication number
- DE1670861A1 DE1670861A1 DE19671670861 DE1670861A DE1670861A1 DE 1670861 A1 DE1670861 A1 DE 1670861A1 DE 19671670861 DE19671670861 DE 19671670861 DE 1670861 A DE1670861 A DE 1670861A DE 1670861 A1 DE1670861 A1 DE 1670861A1
- Authority
- DE
- Germany
- Prior art keywords
- water
- caprolactam
- solution
- extraction
- lactams
- 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.)
- Pending
Links
- 238000000034 method Methods 0.000 title claims description 9
- 150000003951 lactams Chemical class 0.000 title description 8
- JBKVHLHDHHXQEQ-UHFFFAOYSA-N epsilon-caprolactam Chemical compound O=C1CCCCCN1 JBKVHLHDHHXQEQ-UHFFFAOYSA-N 0.000 claims description 38
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 20
- UHOVQNZJYSORNB-UHFFFAOYSA-N Benzene Chemical compound C1=CC=CC=C1 UHOVQNZJYSORNB-UHFFFAOYSA-N 0.000 claims description 18
- 239000000243 solution Substances 0.000 claims description 18
- 239000007864 aqueous solution Substances 0.000 claims description 7
- 238000000605 extraction Methods 0.000 claims description 7
- 239000003960 organic solvent Substances 0.000 claims description 6
- 239000000126 substance Substances 0.000 claims description 4
- 150000008044 alkali metal hydroxides Chemical class 0.000 claims description 2
- HEMHJVSKTPXQMS-UHFFFAOYSA-M Sodium hydroxide Chemical compound [OH-].[Na+] HEMHJVSKTPXQMS-UHFFFAOYSA-M 0.000 description 15
- 239000002585 base Substances 0.000 description 7
- 239000012286 potassium permanganate Substances 0.000 description 7
- 238000004821 distillation Methods 0.000 description 5
- 238000004140 cleaning Methods 0.000 description 4
- 239000012535 impurity Substances 0.000 description 4
- YXFVVABEGXRONW-UHFFFAOYSA-N Toluene Chemical compound CC1=CC=CC=C1 YXFVVABEGXRONW-UHFFFAOYSA-N 0.000 description 3
- 238000002474 experimental method Methods 0.000 description 3
- HEDRZPFGACZZDS-UHFFFAOYSA-N Chloroform Chemical compound ClC(Cl)Cl HEDRZPFGACZZDS-UHFFFAOYSA-N 0.000 description 2
- NNBZCPXTIHJBJL-UHFFFAOYSA-N decalin Chemical compound C1CCCC2CCCCC21 NNBZCPXTIHJBJL-UHFFFAOYSA-N 0.000 description 2
- 238000000746 purification Methods 0.000 description 2
- 238000001577 simple distillation Methods 0.000 description 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 description 1
- ZOXJGFHDIHLPTG-UHFFFAOYSA-N Boron Chemical compound [B] ZOXJGFHDIHLPTG-UHFFFAOYSA-N 0.000 description 1
- 239000002250 absorbent Substances 0.000 description 1
- 230000002745 absorbent Effects 0.000 description 1
- 230000002378 acidificating effect Effects 0.000 description 1
- 239000000654 additive Substances 0.000 description 1
- 125000003118 aryl group Chemical group 0.000 description 1
- 229910052796 boron Inorganic materials 0.000 description 1
- 238000006243 chemical reaction Methods 0.000 description 1
- 239000003795 chemical substances by application Substances 0.000 description 1
- 150000001875 compounds Chemical class 0.000 description 1
- -1 cyclic oximes Chemical class 0.000 description 1
- 150000008282 halocarbons Chemical class 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 239000000178 monomer Substances 0.000 description 1
- 239000012044 organic layer Substances 0.000 description 1
- 230000001590 oxidative effect Effects 0.000 description 1
- 239000002994 raw material Substances 0.000 description 1
- 230000008707 rearrangement Effects 0.000 description 1
- 150000003839 salts Chemical class 0.000 description 1
- 238000000926 separation method Methods 0.000 description 1
- 239000004753 textile Substances 0.000 description 1
- 238000005292 vacuum distillation Methods 0.000 description 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 |
|---|---|
| DE1670861A1 true DE1670861A1 (de) | 1971-03-11 |
Family
ID=7105317
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| DE19671670861 Pending DE1670861A1 (de) | 1967-04-27 | 1967-04-27 | Verfahren zur Reinigung von Lactamen |
Country Status (6)
| Country | Link |
|---|---|
| BE (1) | BE714180A (enExample) |
| CH (1) | CH491923A (enExample) |
| DE (1) | DE1670861A1 (enExample) |
| FR (1) | FR1560939A (enExample) |
| GB (1) | GB1157416A (enExample) |
| NL (1) | NL6805663A (enExample) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE2619234A1 (de) * | 1975-05-01 | 1976-11-25 | Stamicarbon | Verfahren zur gewinnung von reinem epsilon-caprolactam aus einer waessrigen loesung desselben |
Families Citing this family (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| IT1112840B (it) * | 1979-05-04 | 1986-01-20 | Snia Viscosa | Metodo per la purificazione del caprolattame grezzo contenente ammidi e daltri sottoprodotti |
| 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 |
| TW202342429A (zh) | 2022-01-28 | 2023-11-01 | 荷蘭商卡普三世責任有限公司 | 用於回收來自包含尼龍６之漁網的ε-己內醯胺之方法 |
| TW202342427A (zh) * | 2022-01-28 | 2023-11-01 | 荷蘭商卡普三世責任有限公司 | 用於回收來自含尼龍6之多組分材料的ε-己內醯胺之方法 |
| TW202342428A (zh) | 2022-01-28 | 2023-11-01 | 荷蘭商卡普三世責任有限公司 | 用於回收來自包含聚醯胺６漁網的ε－己內醯胺之方法 |
| 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 |
| EP4306510A1 (en) | 2022-07-11 | 2024-01-17 | Cap Iii B.V. | Process for the recovery of epsilon-caprolactam from nylon 6-containing multi-component material |
-
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 (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE2619234A1 (de) * | 1975-05-01 | 1976-11-25 | Stamicarbon | Verfahren zur gewinnung von reinem epsilon-caprolactam aus einer waessrigen loesung desselben |
Also Published As
| Publication number | Publication date |
|---|---|
| GB1157416A (en) | 1969-07-09 |
| FR1560939A (enExample) | 1969-03-21 |
| NL6805663A (enExample) | 1968-10-28 |
| BE714180A (enExample) | 1968-09-16 |
| CH491923A (de) | 1970-06-15 |
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