METHOD OF PRODUCING A MIXTURE OF DINITROTOLUENE AND TRINITROTOLUENE (VERSIONS) Russian patent published in 2020 - IPC C06B25/04 C07C201/16 C07C205/06 

FIELD: manufacturing technology.

SUBSTANCE: invention relates to production of a mixture of dinitrotoluene and trinitrotoluene (tolite) used as a plasticiser in order to reduce high ammonia powder. Mixture is obtained by further processing a mixture of mononitrotoluene and dinitrotoluene taken after the first phase of producing tolite, or an acidic reaction mass consisting of dinitrotoluene and trinitrotoluene, taken from one of the apparatuses of the third phase of producing tolite, or acidic reaction mass taken from corresponding two devices of the third phase of production of tolite and combined into one weight. Sulfite-soda solution which is a waste product of sulfuric acid can be used for washing and neutralizing acidic reaction mass.

EFFECT: methods enable to obtain a mixture of dinitrotoluene with trinitrotoluene with weight ratio of trinitrotoluene of 10 % to 40 %, having solidification temperature in the optimum range of 40 °C to 55 °C.

3 cl, 6 tbl