ES8104234A1 - Un metodo para la purificacion de caprolactama bruta - Google Patents
Un metodo para la purificacion de caprolactama brutaInfo
- Publication number
- ES8104234A1 ES8104234A1 ES491101A ES491101A ES8104234A1 ES 8104234 A1 ES8104234 A1 ES 8104234A1 ES 491101 A ES491101 A ES 491101A ES 491101 A ES491101 A ES 491101A ES 8104234 A1 ES8104234 A1 ES 8104234A1
- Authority
- ES
- Spain
- Prior art keywords
- caprolactam
- products
- amides
- solution
- phases
- 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
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)
Abstract
METODO PARA LA PURIFICACION DE CAPROLACTAMA BRUTA QUE CONTIENE COMO IMPUREZAS AMIDAS PRIMARIAS, EN PARTICULAR HEXAHIDROBENZAMIDA, Y OTROS SUBPRODUCTOS. COMPRENDE LAS OPERACIONES SIGUIENTES: PRIMERA, UNA SOLUCION DE CAPROLACTAMA BRUTA EN UN DISOLVENTE ORGANICO, GENERALMENTE TOLUENO, QUE ES INSOLUBLE EN AGUA, SE TRATA CON AGUA DE MDOO QUE SE EXTRAIGA LA MAYOR PARTE DE LA CAPROLACTAMA EN FORMA PURIFICADA; SEGUNDA, SE SEPARA LA SOLUCION DE CAPROLACTAMA ACUOSA Y LA CAPROLACTAMA SE AISLA POR METODOS CONOCIDOS, TERCERA, LA SOLUCION RESTANTE DEL DISOLVENTE ORGANICO, QUE CONTIENE UNA PARTE DE LAS AMIDAS Y DE LOS SUBPRODUCTOS, SE TRATA CON UN ACIDO MINERAL, GENERALMENTE ACIDO SULFURICO, EN UNA CONCENTRACION TAL QUE SEA INERTE RESPECTO AL DISOLVENTE ORGANICO Y QUE ORIGINE LA FORMACION DE DOS FASES SEPARADAS; CUARTA, LAS DOS FASES DE LA MEZCLA QUE SE HAN FORMADO SE SEPARAN EN UNA FASE PESADA, QUE CONTIENE EL ACIDO MINERAL, SU AGUA DE DILUCION RESPECTIVA Y LA MAYOR PARTE DE LAS AMIDAS Y SUBPRODUCTOS, YUNA FASE LIGERA, QUE CONTIENE EL DISOLVENTE ORGANICO Y LA PARTE RESTANTE DE LAS AMIDAS Y SUBPRODUCTOS; Y, POR ULTIMO, LA FASE LIGERA SE RECICLA SOMETIENDOLA DE NUEVO AL PROCESO. P
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| IT22355/79A IT1112840B (it) | 1979-05-04 | 1979-05-04 | Metodo per la purificazione del caprolattame grezzo contenente ammidi e daltri sottoprodotti |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| ES491101A0 ES491101A0 (es) | 1981-04-01 |
| ES8104234A1 true ES8104234A1 (es) | 1981-04-01 |
Family
ID=11195124
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| ES491101A Expired ES8104234A1 (es) | 1979-05-04 | 1980-05-02 | Un metodo para la purificacion de caprolactama bruta |
Country Status (14)
| Country | Link |
|---|---|
| US (1) | US4293494A (es) |
| JP (1) | JPS55149249A (es) |
| AU (1) | AU538254B2 (es) |
| BE (1) | BE883110A (es) |
| BR (1) | BR8002641A (es) |
| CA (1) | CA1132546A (es) |
| DE (1) | DE3016335A1 (es) |
| ES (1) | ES8104234A1 (es) |
| FR (1) | FR2455584A1 (es) |
| GB (1) | GB2050354A (es) |
| IN (1) | IN153035B (es) |
| IT (1) | IT1112840B (es) |
| MX (1) | MX153697A (es) |
| NL (1) | NL8002554A (es) |
Families Citing this family (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE10124579A1 (de) * | 2001-05-21 | 2002-12-05 | Bayer Ag | Verfahren und Vorrichtung zur Extraktion von Polyamid |
| US7022844B2 (en) | 2002-09-21 | 2006-04-04 | Honeywell International Inc. | Amide-based compounds, production, recovery, purification and uses thereof |
| CN107556240B (zh) * | 2016-08-24 | 2020-10-30 | 沧州旭阳化工有限公司 | 一种己内酰胺精制方法及精制己内酰胺的系统 |
Family Cites Families (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US2758991A (en) * | 1956-08-14 | Hvvevvtofry | ||
| FR1053885A (fr) * | 1950-07-26 | 1954-02-05 | Inventa Ag | Procédé de préparation en continu de lactames purs par extraction |
| US3359260A (en) * | 1964-12-30 | 1967-12-19 | Union Carbide Corp | Purification of epsilon-caprolactams |
| DE1670861A1 (de) * | 1967-04-27 | 1971-03-11 | Bayer Ag | Verfahren zur Reinigung von Lactamen |
| NL7700234A (nl) * | 1977-01-12 | 1978-07-14 | Stamicarbon | Werkwijze voor het winnen van epsilon-caprolac- tam uit epsilon-caprolactam- bevattend destil- latieresidu. |
-
1979
- 1979-05-04 IT IT22355/79A patent/IT1112840B/it active
-
1980
- 1980-04-21 GB GB8013028A patent/GB2050354A/en not_active Withdrawn
- 1980-04-24 US US06/143,418 patent/US4293494A/en not_active Expired - Lifetime
- 1980-04-28 DE DE19803016335 patent/DE3016335A1/de not_active Withdrawn
- 1980-04-29 BR BR8002641A patent/BR8002641A/pt unknown
- 1980-04-30 MX MX182177A patent/MX153697A/es unknown
- 1980-05-02 AU AU58037/80A patent/AU538254B2/en not_active Ceased
- 1980-05-02 NL NL8002554A patent/NL8002554A/nl not_active Application Discontinuation
- 1980-05-02 ES ES491101A patent/ES8104234A1/es not_active Expired
- 1980-05-02 JP JP5937880A patent/JPS55149249A/ja active Pending
- 1980-05-02 CA CA351,180A patent/CA1132546A/en not_active Expired
- 1980-05-03 IN IN513/CAL/80A patent/IN153035B/en unknown
- 1980-05-05 FR FR8009987A patent/FR2455584A1/fr active Pending
- 1980-05-05 BE BE2/466A patent/BE883110A/fr unknown
Also Published As
| Publication number | Publication date |
|---|---|
| FR2455584A1 (fr) | 1980-11-28 |
| US4293494A (en) | 1981-10-06 |
| BR8002641A (pt) | 1980-12-09 |
| GB2050354A (en) | 1981-01-07 |
| IN153035B (es) | 1984-05-19 |
| IT7922355A0 (it) | 1979-05-04 |
| JPS55149249A (en) | 1980-11-20 |
| CA1132546A (en) | 1982-09-28 |
| IT1112840B (it) | 1986-01-20 |
| AU538254B2 (en) | 1984-08-02 |
| DE3016335A1 (de) | 1980-11-13 |
| MX153697A (es) | 1986-12-19 |
| ES491101A0 (es) | 1981-04-01 |
| AU5803780A (en) | 1980-11-06 |
| BE883110A (fr) | 1980-11-05 |
| NL8002554A (nl) | 1980-11-06 |
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