Two main impurities are made in the industrial production of MNB.  These impurities are nitrophenols and dinitrobenzene (DNB).  The formation rates of these impurities are significantly affected by the initial reaction conditions.  Understanding these effects is an important first step in the continuous on-going research aimed towards reducing the formation of these impurities.  However, very limited work has been published on this subject.This paper presents the findings of a study done by the authors, conducted in a laboratory setting, examining the effect of relevant industrial operating conditions on the formation rates of nitrophenols and DNB.  The selected operating conditions, which can usually be manipulated in most industrial production MNB facilities, are: initial sulfuric acid concentration, average reaction temperature, and stoichiometric reactant ratio.

Effect of reaction conditions on the formation of by-products in the adiabatic mononitration of benzene into mononitrobenzene (MNB)

243rd National Meeting (2012)

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