Abstract: The present study is dedicated to the development of a method for the production of nitroaromatic compounds using solid acid catalysts, as an alternative to industrial nitration, based on a mixture of concentrated acids. The influence of key parameters of the nitration process (temperature, reagent flow rate, nitrating agent concentration, etc.) on the conversion of the initial substrate, the degree of decomposition of nitric acid and the quantity of resulting oxygenates were studied. Recommendations for the selection of effective catalytic systems (high content of Bronsted Acid Centres (BAC) with Ho<-4 high specific surface and resistance to HNO3) were developed and the best conditions for process reactions (temperature 200°C, nitric acid concentration 30%, “nitric acid:benzene” ratio = 0.76), as well as defining a method for regeneration of the catalytic activity without unloading the catalyst, resulting in an increased process efficiency of up to 4.09 g/gcat•h were found.

Cite: Gabova N.E. , Koskin A.P.
Sulfuric Acid-Free Benzene Nitration: Catalysts and Reaction Conditions
Всероссийская научная конференция магистрантов и аспирантов "Science in progress" 20-20 Oct 2016