Process for the manufacture of n,n'-diacetylethylene diamine

Details Process for the manufacture of n,n'-diacetylethylene diamine Process for the manufacture of n,n'-diacetylethylene diamine

C - Chemistry, Metallurgy

07

C

260/557.2

C07C 231/02 (2006.01)

Patent

CA 1113497

PROCESS FOR THE MANUFACTURE OF N,N'-DIACETYLETHYLENE DIAMINE Abstract of the disclosure: N,N'-Diacetylethylene diamine (DAED) is produced by first adding the stoichlometric 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.

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