METHOD OF REUSING NITRO MIXTURES Russian patent published in 1998 - IPC

FIELD: inorganic chemistry methods. SUBSTANCE: nitro mixtures are reused in one of the stages of nitro derivatives' production by way of adding nitro mixture to primary stream of absorption system in proportion: special nitro mixture to weak nitric acid from 1:8 to 1:20. Method allows reuse of wastes and products withdrawn from production and storage to be less expensive and simple and also obtaining nitration agent that may be utilized in production of nitro derivatives of different classes. EFFECT: reduced cost and simplified process.