Production of DNDA for use as a plasticizer in propellant powder, involves nitration of N,N'-dimethyl- and N,N'-diethyl-urea with highly concentrated nitric acid, followed by hydrolysis and nitramine-condensation

Production of DNDA for use as a plasticizer in propellant powder, involves nitration of N,N'-dimethyl- and N,N'-diethyl-urea with highly concentrated nitric acid, followed by hydrolysis and nitramine-condensation

Highly concentrated nitric acid is used as nitrating agent in a method for the production of DNDA (ternary mixture of methyl/ethyl-bis-nitramines) by the nitration of N,N'-dimethylurea (I) and N,N'-diethylurea (II) followed by hydrolysis of the dinitro derivatives and condensation of the m...

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Bibliographische Detailangaben
Hauptverfasser: EMANS, HEINZ-GERD, SCHIRRA, RAINER, LICHTBLAU, LEONHARD, ADOLPH, SVEN
Format: Patent
Sprache:eng ; ger
Schlagworte:
ACYCLIC OR CARBOCYCLIC COMPOUNDS
CHEMISTRY
METALLURGY
ORGANIC CHEMISTRY
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Beschreibung
Zusammenfassung:Highly concentrated nitric acid is used as nitrating agent in a method for the production of DNDA (ternary mixture of methyl/ethyl-bis-nitramines) by the nitration of N,N'-dimethylurea (I) and N,N'-diethylurea (II) followed by hydrolysis of the dinitro derivatives and condensation of the methyl- and ethyl-nitramines. Die vorliegende Erfindung beschreibt ein ökonomisch, chemisch und verfahrenstechnisch sinnvolles Verfahren zur Herstellung von DNDA.