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Статья
2018

Effect of Industrial Detonation Nanodiamonds on the Ratio of Mononitrotoluene Isomers in Nitration of Toluene with a Sulfuric-Nitric Acid Mixture


E. A. VeretennikovE. A. Veretennikov, I. V. TselinskiiI. V. Tselinskii, M. V. VeretennikovaM. V. Veretennikova
Российский журнал прикладной химии
https://doi.org/10.1134/S1070427218020088
Abstract / Full Text

A qualitative and quantitative influence exerted by addition of detonation nanodiamonds on the formation selectivity of mononitrotoluene isomers in the heterophase nitration of toluene with a sulfuric-nitric acid mixture having low nitration activity was found. It is shown that the isomer ratio of the ortho-/paramononitrotoluenes can be varied within the range 1.00–2.7 at a temperature of 50°C by changing the stirring intensity within the range 300–5000 rpm. It was found that the strongest influence on the ortho-/para-ratio of the mononitrotoluene isomers is exerted by nanodiamonds having surface chemically modified via oxidation with a mixture of concentrated nitric and sulfuric acids.

Author information
  • JSC “Chemical-Pharmaceutical Technologies”, pr. Zheleznodorozhnyi 40, St. Petersburg, 192148, RussiaE. A. Veretennikov
  • St. Petersburg State Technological Institute (Technological University), Moskovskii pr. 26, St. Petersburg, 190013, RussiaE. A. Veretennikov, I. V. Tselinskii & M. V. Veretennikova
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