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 Title: |
EP0006613A1:
Process for preparing N,N'-diacetylethylene diamine[German][French]
[ Derwent Title ]
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Country:
Kind: |
EP European Patent Office (EPO)
A1 APPLICATION PUBLISHED WITH SEARCH REPORT i
(See also:
EP0006613B1,
EP0006613B2 )
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| Inventor: |
Roscher, Günter, Dr.;
Pressler, Wilfried, Dr.;
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| Assignee: |
HOECHST AKTIENGESELLSCHAFT
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| Published / Filed: |
1980-01-09
/ 1979-06-27
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| Application Number: |
EP1979000102131
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| IPC Code: |
Advanced:
C07C 67/00;
C07C 231/00;
C07C 231/02;
C07C 233/36;
IPC-7:
C07C 102/04;
C07C 103/44;
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| ECLA Code: |
C07C231/02;
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| Priority Number: |
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| Abstract: |
N,N'-Diacetylethylene diamine (DAED) is produced by first adding the stoichiometric amount of acetic acid (2 mols per mol of ethylene diamine) at least partially in the form of aqueous acetic acid to ethylene diamine, distilling off in a second step the water contained in the reaction mixture, adding acetic acid in excess to the remaining product, distilling off the aqueous acetic acid formed and recycling it into the first process step. The DAED remains as sump product after distillation of the acetic acid.
[German]
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| INPADOC Legal Status: |
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Family Legal Status Report
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| Designated Country: |
BE DE FR GB IT NL
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| Family: |
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Description
Expand description |
[From equivalent
EP0006613B2]
Die Erfindung betrifft ein Verfahren zur Herstellung von N,N′-Diacetylethylendiamin (DAED) aus Ethylendiamin und Essigsäure.
+ Beispiel 1 (Kontinuierliche Durchführung)
+ Beispiel 2 (Diskontinuierliche Durchführung)
+ Vergleichsbeispiel (Einsatz der stöchiometrischen Menge Essigsäure)
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| Other Abstract Info: |
CHEMABS 092(25)214913Y
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