Continuous process for the manufacture of dinitroglycolurile

Details Continuous process for the manufacture of dinitroglycolurile Continuous process for the manufacture of dinitroglycolurile

1979-06-06

1980-07-08

Trousof, Natalie

Organic compounds -- part of the class 532-570 series

Organic compounds

Heterocyclic carbon compounds containing a hetero ring...

149 92, C07D48704

Patent

active

042118743

ABSTRACT:
The invention relates to a continuous process for the manufacture of dinitroglycolurile by nitrating glycolurile with absolute nitric acid.
According to the invention, the nitration is carried out in at least two reactors in a cascade, a homogeneous phase being produced in the first reactor and a heterogeneous phase being produced in the second reactor.
An initial nitration ratio of between 3.5 and 9 is preferably used and a temperature of between 30.degree. and 40.degree. C. and between 45.degree. and 70.degree. C. is preferably caused to prevail in the first and the second reactor respectively. If desired, at least one third reactor can be used, in which the reaction mixture is brought back to ambient temperature.
Application: production of the secondary explosive DINGU, having improved stability in the crude form, with an excellent yield.

REFERENCES:
Bouleau et al., Chem. Abst. 1977, vol. 86, No. 86:75499d.
Franchimont et al., Recueil des Travaux Chimiques des Pays-Bas, 1888, vol. 7, pp. 12-24.

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