ES2007278A6 - Procedimiento para purificar caprolactama. - Google Patents
Procedimiento para purificar caprolactama.Info
- Publication number
- ES2007278A6 ES2007278A6 ES8802389A ES8802389A ES2007278A6 ES 2007278 A6 ES2007278 A6 ES 2007278A6 ES 8802389 A ES8802389 A ES 8802389A ES 8802389 A ES8802389 A ES 8802389A ES 2007278 A6 ES2007278 A6 ES 2007278A6
- Authority
- ES
- Spain
- Prior art keywords
- caprolactam
- alpha
- vacuo
- rectification
- boiling
- 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 18
- 238000000034 method Methods 0.000 title abstract 3
- YXFVVABEGXRONW-UHFFFAOYSA-N Toluene Chemical compound CC1=CC=CC=C1 YXFVVABEGXRONW-UHFFFAOYSA-N 0.000 abstract 6
- QGZKDVFQNNGYKY-UHFFFAOYSA-N Ammonia Chemical compound N QGZKDVFQNNGYKY-UHFFFAOYSA-N 0.000 abstract 2
- 238000009835 boiling Methods 0.000 abstract 2
- 238000000605 extraction Methods 0.000 abstract 2
- RZVAJINKPMORJF-UHFFFAOYSA-N Acetaminophen Chemical compound CC(=O)NC1=CC=C(O)C=C1 RZVAJINKPMORJF-UHFFFAOYSA-N 0.000 abstract 1
- 238000006237 Beckmann rearrangement reaction Methods 0.000 abstract 1
- 229910000272 alkali metal oxide Inorganic materials 0.000 abstract 1
- 150000001340 alkali metals Chemical class 0.000 abstract 1
- 229910001860 alkaline earth metal hydroxide Inorganic materials 0.000 abstract 1
- 229910021529 ammonia Inorganic materials 0.000 abstract 1
- 239000006227 byproduct Substances 0.000 abstract 1
- 125000000113 cyclohexyl group Chemical group [H]C1([H])C([H])([H])C([H])([H])C([H])(*)C([H])([H])C1([H])[H] 0.000 abstract 1
- 230000018044 dehydration Effects 0.000 abstract 1
- 238000006297 dehydration reaction Methods 0.000 abstract 1
- XLYOFNOQVPJJNP-DYCDLGHISA-N deuterium hydrogen oxide Chemical compound [2H]O XLYOFNOQVPJJNP-DYCDLGHISA-N 0.000 abstract 1
- 238000004821 distillation Methods 0.000 abstract 1
- 239000011261 inert gas Substances 0.000 abstract 1
- 230000014759 maintenance of location Effects 0.000 abstract 1
- 239000000203 mixture Substances 0.000 abstract 1
- 230000009935 nitrosation Effects 0.000 abstract 1
- 238000007034 nitrosation reaction Methods 0.000 abstract 1
- 239000000047 product Substances 0.000 abstract 1
- 238000000926 separation method Methods 0.000 abstract 1
- 239000004094 surface-active agent Substances 0.000 abstract 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 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)
- Nitrogen And Oxygen Or Sulfur-Condensed Heterocyclic Ring Systems (AREA)
Abstract
UN E PARA PURIFICAR CAPROLACTAMA (CL) OBTENIDA POR TRANSPOSICION DE BECKMANN O POR NITROSACION DE COMPUESTOS CICLOHEXILICOS, QUE SE REALIZA EN LAS SIGUIENTES ETAPAS: A) EL ACEITE DE CAPROLACTAMA ES TRATADO CON AMONIACO A UN PH COMPRENDIDO ENTRE 8 Y 10, AGREGANDOSE POR LO MENOS UN AGENTE TENSIOACTIVO; B) LA CAPROLACTAMA EN SOLUCION ACUOSA-AMONIACAL, OBTENIDA EN (A) ES EXTRAIDA CON TOLUENO; C) LA CAPROLACTAMA EN SOLUCION DE TILUENO DE ACUERDO CON (B) ES EXTRAIDA CON AGUA; D) EL PRODUCTO EXTRAIDO EN (C) ES DESHIDRATADO POR DESTILACION DE AGUA Y ES RECTIFICADO BAJO VACIO; E) LA CAPROLACTAMA OBTENIDA EN (D) ES TRATA CON UN HIDROXIDO ALCALINO Y/O UN HIDROXIDO ALCALINOTERREO; F) LA MEZCLA OBTENIDA EN (E) ES RECTIFICADA BAJO VACIO, OBTENIENDOSE CAPROLACTAMA PURA.
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| IT21548/87A IT1222419B (it) | 1987-07-31 | 1987-07-31 | Procedimento di purificazione del caprolattame |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| ES2007278A6 true ES2007278A6 (es) | 1989-06-01 |
Family
ID=11183439
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| ES8802389A Expired ES2007278A6 (es) | 1987-07-31 | 1988-07-29 | Procedimiento para purificar caprolactama. |
Country Status (8)
| Country | Link |
|---|---|
| AR (1) | AR244664A1 (es) |
| BR (1) | BR8803787A (es) |
| CA (1) | CA1309404C (es) |
| DE (1) | DE3825524A1 (es) |
| ES (1) | ES2007278A6 (es) |
| IN (1) | IN171456B (es) |
| IT (1) | IT1222419B (es) |
| SU (1) | SU1709905A3 (es) |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| FR2781796B1 (fr) † | 1998-07-28 | 2000-09-22 | Rhone Poulenc Fibres | Procede de deshydratation de lactame |
| AU2002313611A1 (en) * | 2001-08-27 | 2003-03-10 | Dsm Ip Assets B.V. | Process for distilling alkaline caprolactam product at reduced pressure |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| IT1173261B (it) * | 1984-02-08 | 1987-06-18 | Snia Bpd Spa | Procedimento di purificazione del caprolattame |
-
1987
- 1987-07-31 IT IT21548/87A patent/IT1222419B/it active
-
1988
- 1988-07-08 IN IN480/MAS/88A patent/IN171456B/en unknown
- 1988-07-26 CA CA000573088A patent/CA1309404C/en not_active Expired - Fee Related
- 1988-07-27 AR AR88311523A patent/AR244664A1/es active
- 1988-07-27 DE DE3825524A patent/DE3825524A1/de not_active Withdrawn
- 1988-07-29 BR BR8803787A patent/BR8803787A/pt not_active IP Right Cessation
- 1988-07-29 SU SU884356218A patent/SU1709905A3/ru active
- 1988-07-29 ES ES8802389A patent/ES2007278A6/es not_active Expired
Also Published As
| Publication number | Publication date |
|---|---|
| AR244664A1 (es) | 1993-11-30 |
| IT8721548A0 (it) | 1987-07-31 |
| SU1709905A3 (ru) | 1992-01-30 |
| IN171456B (es) | 1992-10-17 |
| BR8803787A (pt) | 1989-02-21 |
| DE3825524A1 (de) | 1989-02-09 |
| CA1309404C (en) | 1992-10-27 |
| IT1222419B (it) | 1990-09-05 |
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