Nitric acid recovery from nitriding processes

Recovery process for nitric acid sulphuric acid and oxides of nitrogen is claimed. The process is used in the prodn. of dinitroluene (DNT) by nitration of toluene or mononitrotoluene (MNT). The process comprises a multi-stage countercurrent extn. of the crude (I) with a dilute aq. soln. of NHO3, H2S...

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Hauptverfasser:	GEBAUER, JUERGEN, HERMANN, HEINRICH
Format:	Patent
Sprache:	eng ; fre ; ger
Schlagworte:	ACYCLIC OR CARBOCYCLIC COMPOUNDS CHEMISTRY METALLURGY ORGANIC CHEMISTRY
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