FR2479217A1 - Procede et dispositif de separation thermique continue de melanges de substances liquides thermolabiles, en particulier de caprolactame, a partir d'impuretes de caractere acide ou de derives neutres de telles impuretes - Google Patents
Procede et dispositif de separation thermique continue de melanges de substances liquides thermolabiles, en particulier de caprolactame, a partir d'impuretes de caractere acide ou de derives neutres de telles impuretes Download PDFInfo
- Publication number
- FR2479217A1 FR2479217A1 FR8105743A FR8105743A FR2479217A1 FR 2479217 A1 FR2479217 A1 FR 2479217A1 FR 8105743 A FR8105743 A FR 8105743A FR 8105743 A FR8105743 A FR 8105743A FR 2479217 A1 FR2479217 A1 FR 2479217A1
- Authority
- FR
- France
- Prior art keywords
- distillation
- impurities
- rectification
- thin
- caprolactam
- 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.)
- Granted
Links
- JBKVHLHDHHXQEQ-UHFFFAOYSA-N epsilon-caprolactam Chemical compound O=C1CCCCCN1 JBKVHLHDHHXQEQ-UHFFFAOYSA-N 0.000 title claims abstract description 38
- 238000000034 method Methods 0.000 title claims abstract description 28
- 238000000926 separation method Methods 0.000 title claims abstract description 27
- 239000012535 impurity Substances 0.000 title claims abstract description 18
- 239000000126 substance Substances 0.000 title claims abstract description 17
- 239000000203 mixture Substances 0.000 title claims abstract description 15
- 239000007788 liquid Substances 0.000 title claims abstract description 9
- 230000007935 neutral effect Effects 0.000 title claims abstract description 5
- 238000004821 distillation Methods 0.000 claims abstract description 37
- 238000000746 purification Methods 0.000 claims abstract description 11
- 150000001875 compounds Chemical class 0.000 claims abstract description 9
- 238000009833 condensation Methods 0.000 claims abstract description 5
- 230000005494 condensation Effects 0.000 claims abstract description 5
- 239000010409 thin film Substances 0.000 claims description 22
- 238000000227 grinding Methods 0.000 claims description 6
- HEMHJVSKTPXQMS-UHFFFAOYSA-M Sodium hydroxide Chemical compound [OH-].[Na+] HEMHJVSKTPXQMS-UHFFFAOYSA-M 0.000 claims description 4
- 239000002904 solvent Substances 0.000 claims description 3
- 230000002378 acidificating effect Effects 0.000 claims description 2
- 238000001035 drying Methods 0.000 claims description 2
- 150000001768 cations Chemical class 0.000 claims 1
- 229910052751 metal Inorganic materials 0.000 claims 1
- 239000002184 metal Substances 0.000 claims 1
- 150000002739 metals Chemical class 0.000 claims 1
- 238000004064 recycling Methods 0.000 claims 1
- 238000011144 upstream manufacturing Methods 0.000 claims 1
- 239000002253 acid Substances 0.000 abstract description 2
- 239000000047 product Substances 0.000 description 13
- 238000001704 evaporation Methods 0.000 description 5
- 150000001408 amides Chemical class 0.000 description 4
- 230000008020 evaporation Effects 0.000 description 4
- 208000005156 Dehydration Diseases 0.000 description 3
- 239000004952 Polyamide Substances 0.000 description 3
- 230000018044 dehydration Effects 0.000 description 3
- 238000006297 dehydration reaction Methods 0.000 description 3
- 239000012467 final product Substances 0.000 description 3
- 238000004519 manufacturing process Methods 0.000 description 3
- 229920002647 polyamide Polymers 0.000 description 3
- 238000010992 reflux Methods 0.000 description 3
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 3
- 239000006227 byproduct Substances 0.000 description 2
- 239000012141 concentrate Substances 0.000 description 2
- NZNMSOFKMUBTKW-UHFFFAOYSA-N cyclohexanecarboxylic acid Chemical compound OC(=O)C1CCCCC1 NZNMSOFKMUBTKW-UHFFFAOYSA-N 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 239000000835 fiber Substances 0.000 description 2
- 238000009434 installation Methods 0.000 description 2
- 238000009835 boiling Methods 0.000 description 1
- 238000004140 cleaning Methods 0.000 description 1
- 239000000470 constituent Substances 0.000 description 1
- 239000002994 raw material Substances 0.000 description 1
- 150000003839 salts Chemical class 0.000 description 1
- 230000001629 suppression Effects 0.000 description 1
- 239000012209 synthetic fiber Substances 0.000 description 1
- 229920002994 synthetic fiber Polymers 0.000 description 1
- 230000008646 thermal stress Effects 0.000 description 1
- 239000006200 vaporizer Substances 0.000 description 1
- 238000013022 venting Methods 0.000 description 1
- 239000011800 void material Substances 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
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D3/00—Distillation or related exchange processes in which liquids are contacted with gaseous media, e.g. stripping
- B01D3/14—Fractional distillation or use of a fractionation or rectification column
- B01D3/143—Fractional distillation or use of a fractionation or rectification column by two or more of a fractionation, separation or rectification step
- B01D3/148—Fractional distillation or use of a fractionation or rectification column by two or more of a fractionation, separation or rectification step in combination with at least one evaporator
Landscapes
- Chemical & Material Sciences (AREA)
- Organic Chemistry (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Vaporization, Distillation, Condensation, Sublimation, And Cold Traps (AREA)
- Organic Low-Molecular-Weight Compounds And Preparation Thereof (AREA)
- Other In-Based Heterocyclic Compounds (AREA)
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| IT8020902A IT8020902A0 (it) | 1980-03-25 | 1980-03-25 | Procedimento ed apparecchiatura per la separazione continua per via termica di miscele liquide dicomposti termolabili. |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| FR2479217A1 true FR2479217A1 (fr) | 1981-10-02 |
| FR2479217B1 FR2479217B1 (OSRAM) | 1984-06-08 |
Family
ID=11173792
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| FR8105743A Granted FR2479217A1 (fr) | 1980-03-25 | 1981-03-23 | Procede et dispositif de separation thermique continue de melanges de substances liquides thermolabiles, en particulier de caprolactame, a partir d'impuretes de caractere acide ou de derives neutres de telles impuretes |
Country Status (8)
| Country | Link |
|---|---|
| JP (1) | JPS5716860A (OSRAM) |
| BE (1) | BE888091A (OSRAM) |
| BR (1) | BR8101743A (OSRAM) |
| DE (1) | DE3106350A1 (OSRAM) |
| FR (1) | FR2479217A1 (OSRAM) |
| GB (1) | GB2072025B (OSRAM) |
| IT (1) | IT8020902A0 (OSRAM) |
| NL (1) | NL8101330A (OSRAM) |
Families Citing this family (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE3338488A1 (de) * | 1982-10-29 | 1984-05-03 | Basf Ag, 6700 Ludwigshafen | Verfahren zur gewinnung von temperaturempfindlichen produkten durch thermisch schonende destillation mittels eines mit einer destillationskolonne verbundenen duennschichtverdampfers und eine anordnung zur durchfuehrung des verfahrens |
| FR2540512B1 (fr) * | 1983-02-07 | 1988-09-09 | Martel Jean Pierre | Procede et installation polyvalente de distillerie avec concentration d'effluents ou de liquides thermosensibles |
| DE4407222A1 (de) * | 1994-03-04 | 1995-09-07 | Basf Ag | Verfahren zur Rückgewinnung von Caprolactam aus Oliogo- und/oder Polymeren des Caprolactams |
| FR2809395B1 (fr) | 2000-05-26 | 2002-07-19 | Rhodia Polyamide Intermediates | Procede de purification de lactames |
| HRP20020005A2 (en) | 2000-12-28 | 2003-04-30 | Lundbeck & Co As H | Process for the preparation of pure citalopram |
| EP1996486B1 (en) | 2006-02-02 | 2016-07-06 | Coty S.A.S. | Enclosure for a pressurized spray container |
| USD666491S1 (en) | 2011-07-15 | 2012-09-04 | S.C. Johnson & Son, Inc. | Overcap |
| CN111265902B (zh) * | 2020-03-09 | 2023-04-21 | 内蒙古兰格生物科技有限公司 | 连续精馏装置 |
| WO2022106685A1 (de) * | 2020-11-23 | 2022-05-27 | Covestro Deutschland Ag | Destillationseinheit und verfahren zur trennung eines flüssigen stoffgemisches in 2 bis 6 flüssige produktströme unterschiedlicher zusammensetzung |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE2035859A1 (en) * | 1969-09-09 | 1971-03-11 | VEB Chemieanlagenbau Erfurt Rudis leben, χ 5211 Rudisieben | Purification of thermally unstable mater- - ials eg caprolactam |
| DE2163258A1 (de) * | 1970-12-22 | 1972-06-29 | Inventa AG für Forschung und Patentverwertung, Zürich (Schweiz) | Verfahren zur Reinigung von Caprolactam |
| FR2450255A1 (fr) * | 1979-02-28 | 1980-09-26 | Snia Viscosa | Procede pour purifier le caprolactame par distillation sous vide |
-
1980
- 1980-03-25 IT IT8020902A patent/IT8020902A0/it unknown
-
1981
- 1981-02-20 DE DE19813106350 patent/DE3106350A1/de not_active Withdrawn
- 1981-03-18 NL NL8101330A patent/NL8101330A/nl not_active Application Discontinuation
- 1981-03-23 FR FR8105743A patent/FR2479217A1/fr active Granted
- 1981-03-24 BR BR8101743A patent/BR8101743A/pt unknown
- 1981-03-24 BE BE0/204232A patent/BE888091A/fr not_active IP Right Cessation
- 1981-03-24 GB GB8109182A patent/GB2072025B/en not_active Expired
- 1981-03-25 JP JP4384181A patent/JPS5716860A/ja active Pending
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE2035859A1 (en) * | 1969-09-09 | 1971-03-11 | VEB Chemieanlagenbau Erfurt Rudis leben, χ 5211 Rudisieben | Purification of thermally unstable mater- - ials eg caprolactam |
| DE2163258A1 (de) * | 1970-12-22 | 1972-06-29 | Inventa AG für Forschung und Patentverwertung, Zürich (Schweiz) | Verfahren zur Reinigung von Caprolactam |
| FR2450255A1 (fr) * | 1979-02-28 | 1980-09-26 | Snia Viscosa | Procede pour purifier le caprolactame par distillation sous vide |
Non-Patent Citations (1)
| Title |
|---|
| CHEMICAL ABSTRACTS, vol. 68, no. 5, pages 6591,6592, no. 68445h, Columbus Ohio (USA); * |
Also Published As
| Publication number | Publication date |
|---|---|
| BR8101743A (pt) | 1981-09-29 |
| JPS5716860A (en) | 1982-01-28 |
| GB2072025B (en) | 1983-11-30 |
| IT8020902A0 (it) | 1980-03-25 |
| NL8101330A (nl) | 1981-10-16 |
| GB2072025A (en) | 1981-09-30 |
| FR2479217B1 (OSRAM) | 1984-06-08 |
| DE3106350A1 (de) | 1981-12-24 |
| BE888091A (fr) | 1981-09-24 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| ST | Notification of lapse |