DE2118282C3 - Process for the continuous production of N.N'-diacetylethylenediamine - Google Patents
Process for the continuous production of N.N'-diacetylethylenediamineInfo
- Publication number
- DE2118282C3 DE2118282C3 DE2118282A DE2118282A DE2118282C3 DE 2118282 C3 DE2118282 C3 DE 2118282C3 DE 2118282 A DE2118282 A DE 2118282A DE 2118282 A DE2118282 A DE 2118282A DE 2118282 C3 DE2118282 C3 DE 2118282C3
- Authority
- DE
- Germany
- Prior art keywords
- acetic acid
- ethylenediamine
- diacetylethylenediamine
- reaction
- temperature
- 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
- 238000000034 method Methods 0.000 title claims description 8
- 238000010924 continuous production Methods 0.000 title claims 3
- QTBSBXVTEAMEQO-UHFFFAOYSA-N Acetic acid Chemical compound CC(O)=O QTBSBXVTEAMEQO-UHFFFAOYSA-N 0.000 claims description 63
- PIICEJLVQHRZGT-UHFFFAOYSA-N Ethylenediamine Chemical compound NCCN PIICEJLVQHRZGT-UHFFFAOYSA-N 0.000 claims description 17
- 238000006243 chemical reaction Methods 0.000 claims description 15
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 7
- WFDIJRYMOXRFFG-UHFFFAOYSA-N Acetic anhydride Chemical compound CC(=O)OC(C)=O WFDIJRYMOXRFFG-UHFFFAOYSA-N 0.000 claims description 6
- 239000000155 melt Substances 0.000 claims description 5
- 239000007858 starting material Substances 0.000 claims description 4
- 239000002253 acid Substances 0.000 claims description 2
- 239000000126 substance Substances 0.000 claims description 2
- 150000004985 diamines Chemical class 0.000 claims 2
- 238000010438 heat treatment Methods 0.000 claims 2
- VGGSQFUCUMXWEO-UHFFFAOYSA-N Ethene Chemical compound C=C VGGSQFUCUMXWEO-UHFFFAOYSA-N 0.000 claims 1
- 239000005977 Ethylene Substances 0.000 claims 1
- 150000008065 acid anhydrides Chemical class 0.000 claims 1
- 150000007513 acids Chemical class 0.000 claims 1
- 150000003863 ammonium salts Chemical class 0.000 claims 1
- 230000009286 beneficial effect Effects 0.000 claims 1
- 150000003857 carboxamides Chemical class 0.000 claims 1
- 150000001735 carboxylic acids Chemical class 0.000 claims 1
- 239000003795 chemical substances by application Substances 0.000 claims 1
- 210000001072 colon Anatomy 0.000 claims 1
- 238000004821 distillation Methods 0.000 claims 1
- 208000001848 dysentery Diseases 0.000 claims 1
- 239000011541 reaction mixture Substances 0.000 claims 1
- VWSLLSXLURJCDF-UHFFFAOYSA-N 2-methyl-4,5-dihydro-1h-imidazole Chemical compound CC1=NCCN1 VWSLLSXLURJCDF-UHFFFAOYSA-N 0.000 description 1
- 241001550224 Apha Species 0.000 description 1
- 238000006418 Brown reaction Methods 0.000 description 1
- 239000000654 additive Substances 0.000 description 1
- 230000000996 additive effect Effects 0.000 description 1
- 230000015572 biosynthetic process Effects 0.000 description 1
- 239000006227 byproduct Substances 0.000 description 1
- 238000004140 cleaning Methods 0.000 description 1
- 230000001771 impaired effect Effects 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 238000002844 melting Methods 0.000 description 1
- 230000008018 melting Effects 0.000 description 1
- WNYIBZHOMJZDKN-UHFFFAOYSA-N n-(2-acetamidoethyl)acetamide Chemical compound CC(=O)NCCNC(C)=O WNYIBZHOMJZDKN-UHFFFAOYSA-N 0.000 description 1
- 239000000047 product Substances 0.000 description 1
- 238000000746 purification Methods 0.000 description 1
- FRPJTGXMTIIFIT-UHFFFAOYSA-N tetraacetylethylenediamine Chemical compound CC(=O)C(N)(C(C)=O)C(N)(C(C)=O)C(C)=O FRPJTGXMTIIFIT-UHFFFAOYSA-N 0.000 description 1
- 239000000052 vinegar Substances 0.000 description 1
- 235000021419 vinegar Nutrition 0.000 description 1
Classifications
-
- C—CHEMISTRY; METALLURGY
- C07—ORGANIC CHEMISTRY
- C07C—ACYCLIC OR CARBOCYCLIC COMPOUNDS
- C07C231/00—Preparation of carboxylic acid amides
- C07C231/02—Preparation of carboxylic acid amides from carboxylic acids or from esters, anhydrides, or halides thereof by reaction with ammonia or amines
-
- C—CHEMISTRY; METALLURGY
- C07—ORGANIC CHEMISTRY
- C07C—ACYCLIC OR CARBOCYCLIC COMPOUNDS
- C07C233/00—Carboxylic acid amides
- C07C233/01—Carboxylic acid amides having carbon atoms of carboxamide groups bound to hydrogen atoms or to acyclic carbon atoms
- C07C233/34—Carboxylic acid amides having carbon atoms of carboxamide groups bound to hydrogen atoms or to acyclic carbon atoms having the nitrogen atom of at least one of the carboxamide groups bound to a carbon atom of a hydrocarbon radical substituted by amino groups
- C07C233/35—Carboxylic acid amides having carbon atoms of carboxamide groups bound to hydrogen atoms or to acyclic carbon atoms having the nitrogen atom of at least one of the carboxamide groups bound to a carbon atom of a hydrocarbon radical substituted by amino groups with the substituted hydrocarbon radical bound to the nitrogen atom of the carboxamide group by an acyclic carbon atom
- C07C233/36—Carboxylic acid amides having carbon atoms of carboxamide groups bound to hydrogen atoms or to acyclic carbon atoms having the nitrogen atom of at least one of the carboxamide groups bound to a carbon atom of a hydrocarbon radical substituted by amino groups with the substituted hydrocarbon radical bound to the nitrogen atom of the carboxamide group by an acyclic carbon atom having the carbon atom of the carboxamide group bound to a hydrogen atom or to a carbon atom of an acyclic saturated carbon skeleton
Landscapes
- Chemical & Material Sciences (AREA)
- Organic Chemistry (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Organic Low-Molecular-Weight Compounds And Preparation Thereof (AREA)
Description
Schmelze von Ν,Ν'-Diacetyläthylendiamin bilden 35 Das Verfahren der Erfindung führt man beispielssich neben Lysidin (vgl. »Berichte der Deutschen weise aus, indem man in einer Kaskade aus zwei Chemischen Gesellschaft«, Bd. 21, S. 2333) braune Reaktionsbehältern geschmolzenes N,N'-DiacetyI-unbekannte Nebenprodukte, die die Qualität des her- äthylendiamin vorlegt und in die erste Stufe Essiggestellten Ν,Ν'-Diacetyläthylendiamins beeinträch- säure und Äthylendiamin im angegebenen Verhältnis tigen. 40 einleitet, wobei man in den beiden Reaktionsbehäl-Form a melt of Ν, Ν'-diacetylethylenediamine 35 The process of the invention is carried out by way of example in addition to lysidine (cf. »Reports from the Germans show that in a cascade of two Chemischen Gesellschaft ", Vol. 21, p. 2333) brown reaction vessels molten N, N'-diacetyI-unknown By-products that the quality of the heräthylenediamine submits and vinegar put in the first stage Ν, Ν'-diacetylethylenediamines impaired acid and ethylenediamine in the specified ratio run. 40 initiates, with one in the two reaction vessels
Es war deshalb die technische Aufgabe gestellt, tern die oben angegebenen Temperaturen einhält. Ν,Ν'-Diacetyläthylendiamin aus Äthylendiamin und Gleichzeitig destilliert man aus jeder Stufe fortlau-Essigsäure auf einfache Weise kontinuierlich herzu- fend die überschüssige Essigsäure und das gebildete stellen, wobei die Bildung von verfärbenden Neben- Wasser ab. Aus dem zweiten Reaktionsbehälter der produkten vermieden werden sollte, damit das er- 45 Kaskade entnimmt man fortlaufend N,N'-Diacetylhaltene Ν,Ν'-Diacetyläthylendiamin ohne weitere äthylendiamin, das ohne weitere Reinigung für die Reinigung verwendet verden kann. Herstellung von z. B. Tetraacetyläthylendiamin ge-The technical task was therefore set, tern adheres to the temperatures given above. Ν, Ν'-diacetylethylenediamine from ethylenediamine and at the same time, fortlau acetic acid is distilled from each stage the excess acetic acid and the acetic acid formed can be continuously produced in a simple manner set, whereby the formation of discolouring secondary water from. From the second reaction vessel of the products should be avoided, so that the cascade is continuously taken off with N, N'-diacetyl containing substances Ν, Ν'-diacetylethylenediamine without further ethylenediamine, which without further purification for the Cleaning can be used. Production of z. B. Tetraacetylethylenediamine ge
Es wurde gefunden, daß man Ν,Ν'-Diacetyl- eignet ist. Anstatt bei Inbetriebnahme geschmolzenes
äthylendiamin auf einfache Weise kontinuierlich er- N,N'-Diace»yläthylendiamin vorzulegen, ist es auch
hält, wenn man Äthylendiamin und Essigsäure im 50 möglich, von den Ausgangsstoffen Äthylendiamin und
Gewichtsverhältnis von 1 : 2 bis 3 einer Schmelze von Essigsäure auszugehen und diese so lange zu erhitzen,
Ν,Ν'-Diacetyläthylendiamin bei einer Temperatur bis sich genügend N.N'-Diacetyläthylendiamin gebilvon
140 bis 215° C kontinuierlich zuführt, fortlau- det hat; dann wird das Verfahren kontinuierlich, wie
fend die überschüssige Essigsäure und das entste- oben beschrieben, durchgeführt,
hende Wasser abdestilliert und das gebildete Ν,Ν'- 55 Ν,Ν'-Diacetyläthylendiamin wird nach dem wei-Diacetyläthylendiamin
in dem Maße entnimmt, wie teren Umsetzen mit Essigsäureanhydrid als Wasches gebildet wird. mittelzusatz verwendet.It has been found that Ν, Ν'-diacetyl- is suitable. Instead of continuously supplying molten ethylenediamine in a simple manner when starting up, N, N'-diacetylethylenediamine, it is also possible to keep ethylenediamine and acetic acid in 50% of the starting materials ethylenediamine and a weight ratio of 1: 2 to 3 of a melt To run out of acetic acid and to heat it for so long, Ν, Ν'-diacetylethylenediamine at a temperature until sufficient N.N'-diacetylethylenediamine is continuously fed in from 140 to 215 ° C; then the process is carried out continuously, as described above for the excess acetic acid and the resulting
Current water is distilled off and the formed Ν, Ν'- 55 Ν, Ν'-diacetylethylenediamine is removed after the white-diacetylethylenediamine to the extent that teren reaction with acetic anhydride is formed as a wash. medium additive used.
Das neue Verfahren hat den Vorteil, daß manThe new method has the advantage that one
Ν,Ν'-Diacetyläthylendiamin auf einfache Weise kon- BeispielΝ, Ν'-diacetylethylenediamine in a simple manner, example
tinuierlich in so reiner Form erhält, daß es vor seiner 60continuously in such a pure form that before its 60th
Weiterverarbeitung nicht mehr gereinigt werden muß. In einer Kaskade, bestehend aus 2 Reaktionsge-Further processing no longer has to be cleaned. In a cascade, consisting of 2 reaction
Äthylendiamin und Essigsäure werden im allge- fäßen mit jeweils einem Liter Inhalt, liegt jeweils meinen in technisch wasserfreier Form angewandt. Un- 500 g N.N'-Diacetyläthylendiamiti vor und man dotergeordnete Mengen an Wasser, z. B. bis zu 25 Ge- siert in das erste Reaktionsgefäß stündlich 1000 g wichtsprozent, die in den technischen Qualitäten von 65 Äthylendiamin und 2500 g Essigsäure zu. Im ersten Äthylendiamin und Essigsäure enthalten sind, stören Reaktionsgefäß hält man eine Temperatur von nicht. Äthylendiamin und Essigsäure werden im Ge- 1600C und im zweiten eine solche von 2000C ein. wichtsverhältnis von 1:2 bis 3 angewandt. Die Zah- Gleichzeitig destilliert man aus dem ersten Reaktions-Ethylenediamine and acetic acid are generally used with a volume of one liter each, and mine is in a technically anhydrous form. Un- 500 g of N.N'-Diacetyläthylendiamiti before and one doter-ordered amounts of water, z. B. up to 25 per hour in the first reaction vessel 1000 g weight percent, the technical grades of 65 ethylenediamine and 2500 g acetic acid. In the first ethylenediamine and acetic acid are contained, the reaction vessel does not interfere with the temperature. Ethylene diamine and acetic acid in the overall 160 0 C and in the second such of 200 0 C a. weight ratio of 1: 2 to 3 applied. The number is simultaneously distilled from the first reaction
2Π82822,8282
3 43 4
gefäß stündlich 560 g einer 39,5gewichtsprozenügen amln vom Schmelzpunkt 171° C, das 1,03 Gewichts-Essigsäure und aus dem zweiten Reaktionsgefäß prozent Wasser (nach Cart Fischer) und 3,7 Ge-370 g einer 48,5gewichtsprozentigen Essigsäure ab. wichtsproze&t Essigsäure enthält. Das entspricht einer Aus dem Überlauf des zweiten Reaktionsgefäßes er- Ausbeute von 100 <>/» der Theorie, Die Schmelze ist hält man stundheb 2515 g W-Diacetyläthylendi- 5 praktisch farblos und hat eine APHA-Zabl von 10.vessel every hour 560 g of a 39.5 weight percent at a melting point of 171 ° C, the 1.03 weight acetic acid and from the second reaction vessel percent water (according to Cart Fischer) and 3.7 Ge-370 g of a 48.5 percent strength by weight acetic acid. contains acetic acid. That corresponds to a From the overflow of the second reaction vessel, yield of 100 <> / »of theory, the melt is one keeps 2515 g of W-diacetylethylenedi- 5 practically colorless for hours and has an APHA value of 10.
Claims (1)
Priority Applications (9)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE2118282A DE2118282C3 (en) | 1971-04-15 | 1971-04-15 | Process for the continuous production of N.N'-diacetylethylenediamine |
CH428472A CH564520A5 (en) | 1971-04-15 | 1972-03-22 | |
NL7204898A NL7204898A (en) | 1971-04-15 | 1972-04-12 | |
IT49563/72A IT954430B (en) | 1971-04-15 | 1972-04-12 | CONTINUOUS PRODUCTION OF N N DIACETES LENDIAMMINE |
FR7212778A FR2136341A5 (en) | 1971-04-15 | 1972-04-12 | |
BE781995A BE781995A (en) | 1971-04-15 | 1972-04-12 | CONTINUOUS PREPARATION OF DIACETO-ETHYLENEDIAMIDE |
SE04809/72A SE368198B (en) | 1971-04-15 | 1972-04-13 | |
AT325772A AT314492B (en) | 1971-04-15 | 1972-04-14 | Process for the continuous production of N, N'-diacetylethylenediamine |
GB1726172A GB1383583A (en) | 1971-04-15 | 1972-04-14 | Continuous production of n,n-diacetylethylenediamine |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE2118282A DE2118282C3 (en) | 1971-04-15 | 1971-04-15 | Process for the continuous production of N.N'-diacetylethylenediamine |
Publications (3)
Publication Number | Publication Date |
---|---|
DE2118282A1 DE2118282A1 (en) | 1972-11-02 |
DE2118282B2 DE2118282B2 (en) | 1974-02-07 |
DE2118282C3 true DE2118282C3 (en) | 1974-10-03 |
Family
ID=5804802
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
DE2118282A Expired DE2118282C3 (en) | 1971-04-15 | 1971-04-15 | Process for the continuous production of N.N'-diacetylethylenediamine |
Country Status (9)
Country | Link |
---|---|
AT (1) | AT314492B (en) |
BE (1) | BE781995A (en) |
CH (1) | CH564520A5 (en) |
DE (1) | DE2118282C3 (en) |
FR (1) | FR2136341A5 (en) |
GB (1) | GB1383583A (en) |
IT (1) | IT954430B (en) |
NL (1) | NL7204898A (en) |
SE (1) | SE368198B (en) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP0008369A1 (en) * | 1978-07-21 | 1980-03-05 | BASF Aktiengesellschaft | Process for preparing N,N,N',N'-tetraacetylethylene diamine |
Families Citing this family (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE2828765A1 (en) * | 1978-06-30 | 1980-01-10 | Hoechst Ag | METHOD FOR PRODUCING N, N'-DIACETYLETHYLENE DIAMINE |
DE2941023A1 (en) * | 1979-10-10 | 1981-04-23 | Hoechst Ag, 6000 Frankfurt | METHOD FOR THE CONTINUOUS PRODUCTION OF DI-ACETYLENEDIAMINE |
DE3021961A1 (en) * | 1980-06-12 | 1981-12-24 | Basf Ag, 6700 Ludwigshafen | METHOD FOR PRODUCING N, N'-DIACETYLETHYLENE DIAMINE |
DK12887A (en) * | 1987-01-12 | 1988-07-13 | Cheminova As | PROCEDURE FOR THE PREPARATION OF N, N'-DIACETYLETHYLENDIAMINE |
-
1971
- 1971-04-15 DE DE2118282A patent/DE2118282C3/en not_active Expired
-
1972
- 1972-03-22 CH CH428472A patent/CH564520A5/xx not_active IP Right Cessation
- 1972-04-12 IT IT49563/72A patent/IT954430B/en active
- 1972-04-12 FR FR7212778A patent/FR2136341A5/fr not_active Expired
- 1972-04-12 NL NL7204898A patent/NL7204898A/xx not_active Application Discontinuation
- 1972-04-12 BE BE781995A patent/BE781995A/en not_active IP Right Cessation
- 1972-04-13 SE SE04809/72A patent/SE368198B/xx unknown
- 1972-04-14 AT AT325772A patent/AT314492B/en not_active IP Right Cessation
- 1972-04-14 GB GB1726172A patent/GB1383583A/en not_active Expired
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP0008369A1 (en) * | 1978-07-21 | 1980-03-05 | BASF Aktiengesellschaft | Process for preparing N,N,N',N'-tetraacetylethylene diamine |
Also Published As
Publication number | Publication date |
---|---|
DE2118282A1 (en) | 1972-11-02 |
FR2136341A5 (en) | 1972-12-22 |
SE368198B (en) | 1974-06-24 |
DE2118282B2 (en) | 1974-02-07 |
NL7204898A (en) | 1972-10-17 |
GB1383583A (en) | 1974-02-12 |
BE781995A (en) | 1972-10-12 |
CH564520A5 (en) | 1975-07-31 |
IT954430B (en) | 1973-08-30 |
AT314492B (en) | 1974-04-10 |
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Legal Events
Date | Code | Title | Description |
---|---|---|---|
C3 | Grant after two publication steps (3rd publication) | ||
E77 | Valid patent as to the heymanns-index 1977 | ||
8330 | Complete renunciation |