| 9688606 |
Process for acidic scrubbing of dinitrotoluene in the presence of hydrocyanic acid |
Samuel Neto, Rüdiger Fritz, Renate Hempel, Yuan Shen Dai, Barbara BECKER +5 more |
2017-06-27 |
| 9630866 |
Process for workup of NOx-containing offgases from wastewater streams of nitration plants |
Ruediger Fritz, Renate Hempel, Michael Zoellinger, Reiner Reetz |
2017-04-25 |
| 9249083 |
Process for scrubbing dinitrotoluene |
Samuel Neto, Ruediger Fritz, Renate Hempel, Barbara BECKER, Julia Leschinski +4 more |
2016-02-02 |
| 8637712 |
Prevention of precipitation from nitrated aromatic crude products |
Andreas Raichle, Reiner Reetz, Johannes Büttner, Michael Zollinger, Stefanie Haase +1 more |
2014-01-28 |
| 8529771 |
Acidic sludge adsorption of DNT wastewaters |
Ruediger Fritz, Renate Hempel, Michael Zoellinger, Anne-Kathrin Merten, Doris Zschieschang +4 more |
2013-09-10 |
| 7928270 |
Process for distillatively removing dinitrotoluene from process wastewater from the preparation of dinitrotoluene by nitrating of toluene with nitrating acid |
Ulrich Penzel, Ruediger Fritz, Johannes Adam, Anne-Kathrin Merten |
2011-04-19 |
| 7449610 |
Method for extracting nitrocresols from waste water produced in the manufacture of mononitrotoluene and use of said extract |
Johannes Buettner, Reinhard Tonder, Reiner Reetz, Michael Reichelt |
2008-11-11 |
