Basf Se Corporation

Basf Aktiengesellschaft

Josef Meissner Gmbh & Co. Kg

Ruediger Fritz

Holger Allardt

Renate Hempel

Andreas Raichle

Gerrit Waters

Peter Renze

Michael Zoellinger

Johannes Buettner

Anne-Kathrin Merten

Reiner Reetz

Holgar Braunsberg

Markus Hiller

Michael Herrich

Helmut Rueger

Burkhard Hantel

Arndt Hofmann

Kathrin Richter

Lothar Bruntsch

Ulrich Penzel

Sebastian Ahrens

Samuel Neto

Heinrich Hermann

Julia Leschinski

Barbara Becker

Johannes Adam

Mirko Haendel

Juergen Poehlmann

Doris Zschieschang

Ina Homann

Annett Gersdorf

Elvira Flegel

Maximilian Koeller

Jonas Mattern

The present invention relates to a process for workup of nitrite-comprising alkaline process wastewaters from the nitration of aromatic compounds, wherein the alkaline process wastewater is acidified by addition of acids and the offgas which comprises nitrogen oxides and escapes from the acidified process wastewater is worked up, comprising the steps of

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The invention relates to a process for preparing aromatic amines by hydrogenation of corresponding nitroaromatics by means of hydrogen, and also an apparatus suitable for this purpose. In particular, the invention relates to a process for preparing toluenediamine (TDA) by hydrogenation of dinitrotoluene (DNT).

Optimized introduction of the starting materials for a process for preparing aromatic amines by hydrogenation of nitroaromatics

The invention relates to a process for scrubbing a crude mixture comprising dinitrotoluene, nitric acid, nitrogen oxides and sulfuric acid obtained in the nitration of toluene after the nitrating acid has been separated off, which comprises two scrubbing steps (SS-I) and (SS-II), wherein

Process for scrubbing dinitrotoluene

A process for working up alkaline process wastewater from the nitration of aromatic compounds to mono-, di- and trinitroaromatics, said alkaline process wastewater having a pH of 7.5 to 13, comprising the steps of

Acidic sludge adsorption of DNT wastewaters

A process is proposed for distillatively removing dinitrotoluene from process wastewater from the preparation of dinitrotoluene by nitrating toluene with nitrating acid, which comprises

Process for distillatively removing dinitrotoluene from process wastewater from the preparation of dinitrotoluene by nitrating of toluene with nitrating acid

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Bernsdorf, Germany

Ruediger Fritz