Mononitrobenzene, obtained from Benzene and Nitric Acid in the presence of Sulfuric Acid by the adiabatic process, is the starting material for Aniline, which is a valuable raw material for the plastics chemistry (MDI, polyurethane) and the dyeing chemistry (Aniline derivatives).

Adiabatic nitration MNB plants by MEISSNER are characterized by the application of tube reactors, which minimize the formation of by-products (Nitrophenols, Picric Acid and Dinitrobenzene) by optimum reactant intermixing and negligible back mixing inside the tube reactor. Due to the adiabatic technology, the reconcentration of the Sulfuric Acid accruing after separation of the MNB takes place directly in the plant.

The crude Mononitrobenzene is automatically fed to the washing section consisting of MEISSNER compact washers, which perform the product washing as well as the separation of the product from the respective washing medium.

In the subsequent stripping unit the residual Benzene still contained in the purified Mononitrobenzene is separated by means of steam and returned into the process.

Additionally to the MNB plant, MEISSNER as main contractor also offers the Aniline plant, as well as the economical waste water treatment plant for the disposal of toxic Nitrophenols and Picric Acid to obtain a biologically degradable waste water.